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linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/Makefile

@@ -0,0 +1,153 @@
+#
+# Copyright 2017-2026 Advanced Micro Devices, Inc.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+#
+#
+# Makefile for the 'gpio' sub-component of DAL.
+# It provides the control and status of HW GPIO pins.
+
+GPIO = gpio_base.o gpio_service.o hw_factory.o \
+       hw_gpio.o hw_hpd.o hw_ddc.o hw_generic.o hw_translate.o
+
+AMD_DAL_GPIO = $(addprefix $(AMDDALPATH)/dc/gpio/,$(GPIO))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO)
+
+###############################################################################
+# DCE 6x
+###############################################################################
+# all DCE6.x are derived from DCE6.0
+ifdef CONFIG_DRM_AMD_DC_SI
+GPIO_DCE60 = hw_translate_dce60.o hw_factory_dce60.o
+
+AMD_DAL_GPIO_DCE60 = $(addprefix $(AMDDALPATH)/dc/gpio/dce60/,$(GPIO_DCE60))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO_DCE60)
+endif
+
+###############################################################################
+# DCE 8x
+###############################################################################
+# all DCE8.x are derived from DCE8.0
+GPIO_DCE80 = hw_translate_dce80.o hw_factory_dce80.o
+
+AMD_DAL_GPIO_DCE80 = $(addprefix $(AMDDALPATH)/dc/gpio/dce80/,$(GPIO_DCE80))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO_DCE80)
+
+###############################################################################
+# DCE 11x
+###############################################################################
+GPIO_DCE110 = hw_translate_dce110.o hw_factory_dce110.o
+
+AMD_DAL_GPIO_DCE110 = $(addprefix $(AMDDALPATH)/dc/gpio/dce110/,$(GPIO_DCE110))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO_DCE110)
+
+###############################################################################
+# DCE 12x
+###############################################################################
+GPIO_DCE120 = hw_translate_dce120.o hw_factory_dce120.o
+
+AMD_DAL_GPIO_DCE120 = $(addprefix $(AMDDALPATH)/dc/gpio/dce120/,$(GPIO_DCE120))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO_DCE120)
+
+###############################################################################
+# DCN 1x
+###############################################################################
+GPIO_DCN10 = hw_translate_dcn10.o hw_factory_dcn10.o
+
+AMD_DAL_GPIO_DCN10 = $(addprefix $(AMDDALPATH)/dc/gpio/dcn10/,$(GPIO_DCN10))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO_DCN10)
+
+###############################################################################
+# DCN 2
+###############################################################################
+GPIO_DCN20 = hw_translate_dcn20.o hw_factory_dcn20.o
+
+AMD_DAL_GPIO_DCN20 = $(addprefix $(AMDDALPATH)/dc/gpio/dcn20/,$(GPIO_DCN20))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO_DCN20)
+
+###############################################################################
+# DCN 21
+###############################################################################
+GPIO_DCN21 = hw_translate_dcn21.o hw_factory_dcn21.o
+
+AMD_DAL_GPIO_DCN21 = $(addprefix $(AMDDALPATH)/dc/gpio/dcn21/,$(GPIO_DCN21))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO_DCN21)
+
+###############################################################################
+# DCN 3
+###############################################################################
+GPIO_DCN30 = hw_translate_dcn30.o hw_factory_dcn30.o
+
+AMD_DAL_GPIO_DCN30 = $(addprefix $(AMDDALPATH)/dc/gpio/dcn30/,$(GPIO_DCN30))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO_DCN30)
+###############################################################################
+# DCN 3.15
+###############################################################################
+GPIO_DCN315 = hw_translate_dcn315.o hw_factory_dcn315.o
+
+AMD_DAL_GPIO_DCN315 = $(addprefix $(AMDDALPATH)/dc/gpio/dcn315/,$(GPIO_DCN315))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO_DCN315)
+
+###############################################################################
+# DCN 3.2
+###############################################################################
+GPIO_DCN32 = hw_translate_dcn32.o hw_factory_dcn32.o
+
+AMD_DAL_GPIO_DCN32 = $(addprefix $(AMDDALPATH)/dc/gpio/dcn32/,$(GPIO_DCN32))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO_DCN32)
+
+###############################################################################
+# DCN 4.01
+###############################################################################
+GPIO_DCN401 = hw_translate_dcn401.o hw_factory_dcn401.o
+
+AMD_DAL_GPIO_DCN401 = $(addprefix $(AMDDALPATH)/dc/gpio/dcn401/,$(GPIO_DCN401))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO_DCN401)
+
+###############################################################################
+# DCN 4.2
+###############################################################################
+
+GPIO_DCN42 = hw_translate_dcn42.o hw_factory_dcn42.o
+
+AMD_DAL_GPIO_DCN42 = $(addprefix $(AMDDALPATH)/dc/gpio/dcn42/,$(GPIO_DCN42))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO_DCN42)
+
+###############################################################################
+# DCN 4.2B
+###############################################################################
+
+GPIO_DCN42B = hw_translate_dcn42b.o hw_factory_dcn42b.o
+
+AMD_DAL_GPIO_DCN42B = $(addprefix $(AMDDALPATH)/dc/gpio/dcn42b/,$(GPIO_DCN42B))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_GPIO_DCN42B)

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce110/hw_factory_dce110.c

@@ -0,0 +1,180 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+#include "../hw_generic.h"
+
+#include "hw_factory_dce110.h"
+
+#include "dce/dce_11_0_d.h"
+#include "dce/dce_11_0_sh_mask.h"
+
+/* set field name */
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+#define REG(reg_name)\
+		mm ## reg_name
+
+#define REGI(reg_name, block, id)\
+	mm ## block ## id ## _ ## reg_name
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+
+#define hpd_regs(id) \
+{\
+	HPD_REG_LIST(id)\
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(0),
+	hpd_regs(1),
+	hpd_regs(2),
+	hpd_regs(3),
+	hpd_regs(4),
+	hpd_regs(5)
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+		HPD_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+		HPD_MASK_SH_LIST(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+ /* set field name */
+#define SF_DDC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs[] = {
+	ddc_data_regs(1),
+	ddc_data_regs(2),
+	ddc_data_regs(3),
+	ddc_data_regs(4),
+	ddc_data_regs(5),
+	ddc_data_regs(6),
+	ddc_vga_data_regs,
+	ddc_i2c_data_regs
+};
+
+static const struct ddc_registers ddc_clk_regs[] = {
+	ddc_clk_regs(1),
+	ddc_clk_regs(2),
+	ddc_clk_regs(3),
+	ddc_clk_regs(4),
+	ddc_clk_regs(5),
+	ddc_clk_regs(6),
+	ddc_vga_clk_regs,
+	ddc_i2c_clk_regs
+};
+
+static const struct ddc_sh_mask ddc_shift = {
+		DDC_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct ddc_sh_mask ddc_mask = {
+		DDC_MASK_SH_LIST(_MASK)
+};
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs[en];
+		ddc->base.regs = &ddc_data_regs[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs[en];
+		ddc->base.regs = &ddc_clk_regs[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	ddc->shifts = &ddc_shift;
+	ddc->masks = &ddc_mask;
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+static const struct hw_factory_funcs funcs = {
+	.init_ddc_data = dal_hw_ddc_init,
+	.init_generic = NULL,
+	.init_hpd = dal_hw_hpd_init,
+	.get_ddc_pin = dal_hw_ddc_get_pin,
+	.get_hpd_pin = dal_hw_hpd_get_pin,
+	.get_generic_pin = NULL,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers
+};
+
+/*
+ * dal_hw_factory_dce110_init
+ *
+ * @brief
+ * Initialize HW factory function pointers and pin info
+ *
+ * @param
+ * struct hw_factory *factory - [out] struct of function pointers
+ */
+void dal_hw_factory_dce110_init(struct hw_factory *factory)
+{
+	/*TODO check ASIC CAPs*/
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
+	factory->number_of_pins[GPIO_ID_GENERIC] = 7;
+	factory->number_of_pins[GPIO_ID_HPD] = 6;
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 31;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 2;
+	factory->number_of_pins[GPIO_ID_GSL] = 4;
+
+	factory->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce110/hw_factory_dce110.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_FACTORY_DCE110_H__
+#define __DAL_HW_FACTORY_DCE110_H__
+
+/* Initialize HW factory function pointers and pin info */
+void dal_hw_factory_dce110_init(struct hw_factory *factory);
+
+#endif /* __DAL_HW_FACTORY_DCE110_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce110/hw_translate_dce110.c

@@ -0,0 +1,387 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+#include "hw_translate_dce110.h"
+
+#include "dce/dce_11_0_d.h"
+#include "dce/dce_11_0_sh_mask.h"
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	switch (offset) {
+	/* GENERIC */
+	case mmDC_GPIO_GENERIC_A:
+		*id = GPIO_ID_GENERIC;
+		switch (mask) {
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK:
+			*en = GPIO_GENERIC_A;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK:
+			*en = GPIO_GENERIC_B;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK:
+			*en = GPIO_GENERIC_C;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK:
+			*en = GPIO_GENERIC_D;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK:
+			*en = GPIO_GENERIC_E;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK:
+			*en = GPIO_GENERIC_F;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK:
+			*en = GPIO_GENERIC_G;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* HPD */
+	case mmDC_GPIO_HPD_A:
+		*id = GPIO_ID_HPD;
+		switch (mask) {
+		case DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK:
+			*en = GPIO_HPD_1;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK:
+			*en = GPIO_HPD_2;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK:
+			*en = GPIO_HPD_3;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK:
+			*en = GPIO_HPD_4;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK:
+			*en = GPIO_HPD_5;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK:
+			*en = GPIO_HPD_6;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* SYNCA */
+	case mmDC_GPIO_SYNCA_A:
+		*id = GPIO_ID_SYNC;
+		switch (mask) {
+		case DC_GPIO_SYNCA_A__DC_GPIO_HSYNCA_A_MASK:
+			*en = GPIO_SYNC_HSYNC_A;
+			return true;
+		case DC_GPIO_SYNCA_A__DC_GPIO_VSYNCA_A_MASK:
+			*en = GPIO_SYNC_VSYNC_A;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* mmDC_GPIO_GENLK_MASK */
+	case mmDC_GPIO_GENLK_A:
+		*id = GPIO_ID_GSL;
+		switch (mask) {
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK:
+			*en = GPIO_GSL_GENLOCK_CLOCK;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK:
+			*en = GPIO_GSL_GENLOCK_VSYNC;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_A;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_B;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* DDC */
+	/* we don't care about the GPIO_ID for DDC
+	 * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
+	 * directly in the create method */
+	case mmDC_GPIO_DDC1_A:
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case mmDC_GPIO_DDC2_A:
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case mmDC_GPIO_DDC3_A:
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case mmDC_GPIO_DDC4_A:
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case mmDC_GPIO_DDC5_A:
+		*en = GPIO_DDC_LINE_DDC5;
+		return true;
+	case mmDC_GPIO_DDC6_A:
+		*en = GPIO_DDC_LINE_DDC6;
+		return true;
+	case mmDC_GPIO_DDCVGA_A:
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+	/* GPIO_I2CPAD */
+	case mmDC_GPIO_I2CPAD_A:
+		*en = GPIO_DDC_LINE_I2C_PAD;
+		return true;
+	/* Not implemented */
+	case mmDC_GPIO_PWRSEQ_A:
+	case mmDC_GPIO_PAD_STRENGTH_1:
+	case mmDC_GPIO_PAD_STRENGTH_2:
+	case mmDC_GPIO_DEBUG:
+		return false;
+	/* UNEXPECTED */
+	default:
+		ASSERT_CRITICAL(false);
+		return false;
+	}
+}
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6DATA_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = mmDC_GPIO_DDC1_A;
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = mmDC_GPIO_DDC2_A;
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = mmDC_GPIO_DDC3_A;
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = mmDC_GPIO_DDC4_A;
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = mmDC_GPIO_DDC5_A;
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = mmDC_GPIO_DDC6_A;
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = mmDC_GPIO_DDCVGA_A;
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+			info->offset = mmDC_GPIO_I2CPAD_A;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6CLK_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = mmDC_GPIO_DDC1_A;
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = mmDC_GPIO_DDC2_A;
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = mmDC_GPIO_DDC3_A;
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = mmDC_GPIO_DDC4_A;
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = mmDC_GPIO_DDC5_A;
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = mmDC_GPIO_DDC6_A;
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = mmDC_GPIO_DDCVGA_A;
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+			info->offset = mmDC_GPIO_I2CPAD_A;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GENERIC:
+		info->offset = mmDC_GPIO_GENERIC_A;
+		switch (en) {
+		case GPIO_GENERIC_A:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK;
+		break;
+		case GPIO_GENERIC_B:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK;
+		break;
+		case GPIO_GENERIC_C:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK;
+		break;
+		case GPIO_GENERIC_D:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK;
+		break;
+		case GPIO_GENERIC_E:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK;
+		break;
+		case GPIO_GENERIC_F:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK;
+		break;
+		case GPIO_GENERIC_G:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_HPD:
+		info->offset = mmDC_GPIO_HPD_A;
+		switch (en) {
+		case GPIO_HPD_1:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK;
+		break;
+		case GPIO_HPD_2:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK;
+		break;
+		case GPIO_HPD_3:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK;
+		break;
+		case GPIO_HPD_4:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK;
+		break;
+		case GPIO_HPD_5:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK;
+		break;
+		case GPIO_HPD_6:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_SYNC:
+		switch (en) {
+		case GPIO_SYNC_HSYNC_A:
+			info->offset = mmDC_GPIO_SYNCA_A;
+			info->mask = DC_GPIO_SYNCA_A__DC_GPIO_HSYNCA_A_MASK;
+		break;
+		case GPIO_SYNC_VSYNC_A:
+			info->offset = mmDC_GPIO_SYNCA_A;
+			info->mask = DC_GPIO_SYNCA_A__DC_GPIO_VSYNCA_A_MASK;
+		break;
+		case GPIO_SYNC_HSYNC_B:
+		case GPIO_SYNC_VSYNC_B:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+			info->offset = mmDC_GPIO_GENLK_A;
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK;
+		break;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			info->offset = mmDC_GPIO_GENLK_A;
+			info->mask =
+				DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK;
+		break;
+		case GPIO_GSL_SWAPLOCK_A:
+			info->offset = mmDC_GPIO_GENLK_A;
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK;
+		break;
+		case GPIO_GSL_SWAPLOCK_B:
+			info->offset = mmDC_GPIO_GENLK_A;
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_VIP_PAD:
+	default:
+		ASSERT_CRITICAL(false);
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+/* function table */
+static const struct hw_translate_funcs funcs = {
+	.offset_to_id = offset_to_id,
+	.id_to_offset = id_to_offset,
+};
+
+/*
+ * dal_hw_translate_dce110_init
+ *
+ * @brief
+ * Initialize Hw translate function pointers.
+ *
+ * @param
+ * struct hw_translate *tr - [out] struct of function pointers
+ *
+ */
+void dal_hw_translate_dce110_init(struct hw_translate *tr)
+{
+	tr->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce110/hw_translate_dce110.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_TRANSLATE_DCE110_H__
+#define __DAL_HW_TRANSLATE_DCE110_H__
+
+struct hw_translate;
+
+/* Initialize Hw translate function pointers */
+void dal_hw_translate_dce110_init(struct hw_translate *tr);
+
+#endif /* __DAL_HW_TRANSLATE_DCE110_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_factory_dce120.c

@@ -0,0 +1,198 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+#include "../hw_generic.h"
+
+#include "hw_factory_dce120.h"
+
+#include "dce/dce_12_0_offset.h"
+#include "dce/dce_12_0_sh_mask.h"
+#include "soc15_hw_ip.h"
+#include "vega10_ip_offset.h"
+
+#define block HPD
+#define reg_num 0
+
+/* set field name */
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
+
+/* set field name */
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
+
+#define BASE_INNER(seg) \
+	DCE_BASE__INST0_SEG ## seg
+
+/* compile time expand base address. */
+#define BASE(seg) \
+	BASE_INNER(seg)
+
+#define REG(reg_name)\
+		BASE(mm ## reg_name ## _BASE_IDX) + mm ## reg_name
+
+#define REGI(reg_name, block, id)\
+	BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+				mm ## block ## id ## _ ## reg_name
+
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+
+#define hpd_regs(id) \
+{\
+	HPD_REG_LIST(id)\
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(0),
+	hpd_regs(1),
+	hpd_regs(2),
+	hpd_regs(3),
+	hpd_regs(4),
+	hpd_regs(5)
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+		HPD_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+		HPD_MASK_SH_LIST(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+ /* set field name */
+#define SF_DDC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs[] = {
+	ddc_data_regs(1),
+	ddc_data_regs(2),
+	ddc_data_regs(3),
+	ddc_data_regs(4),
+	ddc_data_regs(5),
+	ddc_data_regs(6),
+	ddc_vga_data_regs,
+	ddc_i2c_data_regs
+};
+
+static const struct ddc_registers ddc_clk_regs[] = {
+	ddc_clk_regs(1),
+	ddc_clk_regs(2),
+	ddc_clk_regs(3),
+	ddc_clk_regs(4),
+	ddc_clk_regs(5),
+	ddc_clk_regs(6),
+	ddc_vga_clk_regs,
+	ddc_i2c_clk_regs
+};
+
+static const struct ddc_sh_mask ddc_shift = {
+		DDC_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct ddc_sh_mask ddc_mask = {
+		DDC_MASK_SH_LIST(_MASK)
+};
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs[en];
+		ddc->base.regs = &ddc_data_regs[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs[en];
+		ddc->base.regs = &ddc_clk_regs[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	ddc->shifts = &ddc_shift;
+	ddc->masks = &ddc_mask;
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+
+/* function table */
+static const struct hw_factory_funcs funcs = {
+	.init_ddc_data = dal_hw_ddc_init,
+	.init_generic = NULL,
+	.init_hpd = dal_hw_hpd_init,
+	.get_ddc_pin = dal_hw_ddc_get_pin,
+	.get_hpd_pin = dal_hw_hpd_get_pin,
+	.get_generic_pin = NULL,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers
+};
+/*
+ * dal_hw_factory_dce120_init
+ *
+ * @brief
+ * Initialize HW factory function pointers and pin info
+ *
+ * @param
+ * struct hw_factory *factory - [out] struct of function pointers
+ */
+void dal_hw_factory_dce120_init(struct hw_factory *factory)
+{
+	/*TODO check ASIC CAPs*/
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
+	factory->number_of_pins[GPIO_ID_GENERIC] = 7;
+	factory->number_of_pins[GPIO_ID_HPD] = 6;
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 31;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 2;
+	factory->number_of_pins[GPIO_ID_GSL] = 4;
+
+	factory->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_factory_dce120.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_FACTORY_DCE120_H__
+#define __DAL_HW_FACTORY_DCE120_H__
+
+/* Initialize HW factory function pointers and pin info */
+void dal_hw_factory_dce120_init(struct hw_factory *factory);
+
+#endif /* __DAL_HW_FACTORY_DCE120_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_translate_dce120.c

@@ -0,0 +1,409 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+
+#include "hw_translate_dce120.h"
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+#include "dce/dce_12_0_offset.h"
+#include "dce/dce_12_0_sh_mask.h"
+#include "soc15_hw_ip.h"
+#include "vega10_ip_offset.h"
+
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+#define BASE_INNER(seg) \
+	DCE_BASE__INST0_SEG ## seg
+
+/* compile time expand base address. */
+#define BASE(seg) \
+	BASE_INNER(seg)
+
+#define REG(reg_name)\
+		BASE(mm ## reg_name ## _BASE_IDX) + mm ## reg_name
+
+#define REGI(reg_name, block, id)\
+	BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+				mm ## block ## id ## _ ## reg_name
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	switch (offset) {
+	/* GENERIC */
+	case REG(DC_GPIO_GENERIC_A):
+		*id = GPIO_ID_GENERIC;
+		switch (mask) {
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK:
+			*en = GPIO_GENERIC_A;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK:
+			*en = GPIO_GENERIC_B;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK:
+			*en = GPIO_GENERIC_C;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK:
+			*en = GPIO_GENERIC_D;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK:
+			*en = GPIO_GENERIC_E;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK:
+			*en = GPIO_GENERIC_F;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK:
+			*en = GPIO_GENERIC_G;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* HPD */
+	case REG(DC_GPIO_HPD_A):
+		*id = GPIO_ID_HPD;
+		switch (mask) {
+		case DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK:
+			*en = GPIO_HPD_1;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK:
+			*en = GPIO_HPD_2;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK:
+			*en = GPIO_HPD_3;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK:
+			*en = GPIO_HPD_4;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK:
+			*en = GPIO_HPD_5;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK:
+			*en = GPIO_HPD_6;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* SYNCA */
+	case REG(DC_GPIO_SYNCA_A):
+		*id = GPIO_ID_SYNC;
+		switch (mask) {
+		case DC_GPIO_SYNCA_A__DC_GPIO_HSYNCA_A_MASK:
+			*en = GPIO_SYNC_HSYNC_A;
+			return true;
+		case DC_GPIO_SYNCA_A__DC_GPIO_VSYNCA_A_MASK:
+			*en = GPIO_SYNC_VSYNC_A;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* REG(DC_GPIO_GENLK_MASK */
+	case REG(DC_GPIO_GENLK_A):
+		*id = GPIO_ID_GSL;
+		switch (mask) {
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK:
+			*en = GPIO_GSL_GENLOCK_CLOCK;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK:
+			*en = GPIO_GSL_GENLOCK_VSYNC;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_A;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_B;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* DDC */
+	/* we don't care about the GPIO_ID for DDC
+	 * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
+	 * directly in the create method */
+	case REG(DC_GPIO_DDC1_A):
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case REG(DC_GPIO_DDC2_A):
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case REG(DC_GPIO_DDC3_A):
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case REG(DC_GPIO_DDC4_A):
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case REG(DC_GPIO_DDC5_A):
+		*en = GPIO_DDC_LINE_DDC5;
+		return true;
+	case REG(DC_GPIO_DDC6_A):
+		*en = GPIO_DDC_LINE_DDC6;
+		return true;
+	case REG(DC_GPIO_DDCVGA_A):
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+	/* GPIO_I2CPAD */
+	case REG(DC_GPIO_I2CPAD_A):
+		*en = GPIO_DDC_LINE_I2C_PAD;
+		return true;
+	/* Not implemented */
+	case REG(DC_GPIO_PWRSEQ_A):
+	case REG(DC_GPIO_PAD_STRENGTH_1):
+	case REG(DC_GPIO_PAD_STRENGTH_2):
+	case REG(DC_GPIO_DEBUG):
+		return false;
+	/* UNEXPECTED */
+	default:
+		ASSERT_CRITICAL(false);
+		return false;
+	}
+}
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6DATA_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = REG(DC_GPIO_DDC6_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+			info->offset = REG(DC_GPIO_I2CPAD_A);
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6CLK_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = REG(DC_GPIO_DDC6_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+			info->offset = REG(DC_GPIO_I2CPAD_A);
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GENERIC:
+		info->offset = REG(DC_GPIO_GENERIC_A);
+		switch (en) {
+		case GPIO_GENERIC_A:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK;
+		break;
+		case GPIO_GENERIC_B:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK;
+		break;
+		case GPIO_GENERIC_C:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK;
+		break;
+		case GPIO_GENERIC_D:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK;
+		break;
+		case GPIO_GENERIC_E:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK;
+		break;
+		case GPIO_GENERIC_F:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK;
+		break;
+		case GPIO_GENERIC_G:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_HPD:
+		info->offset = REG(DC_GPIO_HPD_A);
+		switch (en) {
+		case GPIO_HPD_1:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK;
+		break;
+		case GPIO_HPD_2:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK;
+		break;
+		case GPIO_HPD_3:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK;
+		break;
+		case GPIO_HPD_4:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK;
+		break;
+		case GPIO_HPD_5:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK;
+		break;
+		case GPIO_HPD_6:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_SYNC:
+		switch (en) {
+		case GPIO_SYNC_HSYNC_A:
+			info->offset = REG(DC_GPIO_SYNCA_A);
+			info->mask = DC_GPIO_SYNCA_A__DC_GPIO_HSYNCA_A_MASK;
+		break;
+		case GPIO_SYNC_VSYNC_A:
+			info->offset = REG(DC_GPIO_SYNCA_A);
+			info->mask = DC_GPIO_SYNCA_A__DC_GPIO_VSYNCA_A_MASK;
+		break;
+		case GPIO_SYNC_HSYNC_B:
+		case GPIO_SYNC_VSYNC_B:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+			info->offset = REG(DC_GPIO_GENLK_A);
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK;
+		break;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			info->offset = REG(DC_GPIO_GENLK_A);
+			info->mask =
+				DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK;
+		break;
+		case GPIO_GSL_SWAPLOCK_A:
+			info->offset = REG(DC_GPIO_GENLK_A);
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK;
+		break;
+		case GPIO_GSL_SWAPLOCK_B:
+			info->offset = REG(DC_GPIO_GENLK_A);
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_VIP_PAD:
+	default:
+		ASSERT_CRITICAL(false);
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+/* function table */
+static const struct hw_translate_funcs funcs = {
+	.offset_to_id = offset_to_id,
+	.id_to_offset = id_to_offset,
+};
+
+/*
+ * dal_hw_translate_dce120_init
+ *
+ * @brief
+ * Initialize Hw translate function pointers.
+ *
+ * @param
+ * struct hw_translate *tr - [out] struct of function pointers
+ *
+ */
+void dal_hw_translate_dce120_init(struct hw_translate *tr)
+{
+	tr->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_translate_dce120.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_TRANSLATE_DCE120_H__
+#define __DAL_HW_TRANSLATE_DCE120_H__
+
+struct hw_translate;
+
+/* Initialize Hw translate function pointers */
+void dal_hw_translate_dce120_init(struct hw_translate *tr);
+
+#endif /* __DAL_HW_TRANSLATE_DCE120_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce60/hw_factory_dce60.c

@@ -0,0 +1,175 @@
+/*
+ * Copyright 2020 Mauro Rossi <issor.oruam@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+#include "hw_factory_dce60.h"
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+#include "../hw_generic.h"
+
+#include "dce/dce_6_0_d.h"
+#include "dce/dce_6_0_sh_mask.h"
+
+
+#define REG(reg_name)\
+		mm ## reg_name
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+
+#define HPD_REG_LIST_DCE6(id) \
+	HPD_GPIO_REG_LIST(id), \
+	.int_status = mmDC_HPD ## id ## _INT_STATUS,\
+	.toggle_filt_cntl = mmDC_HPD ## id ## _TOGGLE_FILT_CNTL
+
+#define HPD_MASK_SH_LIST_DCE6(mask_sh) \
+		.DC_HPD_SENSE_DELAYED = DC_HPD1_INT_STATUS__DC_HPD1_SENSE_DELAYED ## mask_sh,\
+		.DC_HPD_SENSE = DC_HPD1_INT_STATUS__DC_HPD1_SENSE ## mask_sh,\
+		.DC_HPD_CONNECT_INT_DELAY = DC_HPD1_TOGGLE_FILT_CNTL__DC_HPD1_CONNECT_INT_DELAY ## mask_sh,\
+		.DC_HPD_DISCONNECT_INT_DELAY = DC_HPD1_TOGGLE_FILT_CNTL__DC_HPD1_DISCONNECT_INT_DELAY ## mask_sh
+
+#define hpd_regs(id) \
+{\
+	HPD_REG_LIST_DCE6(id)\
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(1),
+	hpd_regs(2),
+	hpd_regs(3),
+	hpd_regs(4),
+	hpd_regs(5),
+	hpd_regs(6)
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+		HPD_MASK_SH_LIST_DCE6(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+		HPD_MASK_SH_LIST_DCE6(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+ /* set field name */
+#define SF_DDC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs[] = {
+	ddc_data_regs(1),
+	ddc_data_regs(2),
+	ddc_data_regs(3),
+	ddc_data_regs(4),
+	ddc_data_regs(5),
+	ddc_data_regs(6),
+	ddc_vga_data_regs,
+	ddc_i2c_data_regs
+};
+
+static const struct ddc_registers ddc_clk_regs[] = {
+	ddc_clk_regs(1),
+	ddc_clk_regs(2),
+	ddc_clk_regs(3),
+	ddc_clk_regs(4),
+	ddc_clk_regs(5),
+	ddc_clk_regs(6),
+	ddc_vga_clk_regs,
+	ddc_i2c_clk_regs
+};
+
+static const struct ddc_sh_mask ddc_shift = {
+		DDC_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct ddc_sh_mask ddc_mask = {
+		DDC_MASK_SH_LIST(_MASK)
+};
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs[en];
+		ddc->base.regs = &ddc_data_regs[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs[en];
+		ddc->base.regs = &ddc_clk_regs[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	ddc->shifts = &ddc_shift;
+	ddc->masks = &ddc_mask;
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+static const struct hw_factory_funcs funcs = {
+	.init_ddc_data = dal_hw_ddc_init,
+	.init_generic = NULL,
+	.init_hpd = dal_hw_hpd_init,
+	.get_ddc_pin = dal_hw_ddc_get_pin,
+	.get_hpd_pin = dal_hw_hpd_get_pin,
+	.get_generic_pin = NULL,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers
+};
+
+void dal_hw_factory_dce60_init(
+	struct hw_factory *factory)
+{
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
+	factory->number_of_pins[GPIO_ID_GENERIC] = 7;
+	factory->number_of_pins[GPIO_ID_HPD] = 6;
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 31;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 2;
+	factory->number_of_pins[GPIO_ID_GSL] = 4;
+
+	factory->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce60/hw_factory_dce60.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2020 Mauro Rossi <issor.oruam@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_FACTORY_DCE60_H__
+#define __DAL_HW_FACTORY_DCE60_H__
+
+void dal_hw_factory_dce60_init(
+	struct hw_factory *factory);
+
+#endif

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce60/hw_translate_dce60.c

@@ -0,0 +1,411 @@
+/*
+ * Copyright 2020 Mauro Rossi <issor.oruam@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+#include "hw_translate_dce60.h"
+
+#include "dce/dce_6_0_d.h"
+#include "dce/dce_6_0_sh_mask.h"
+#include "smu/smu_6_0_d.h"
+
+/*
+ * @brief
+ * Returns index of first bit (starting with LSB) which is set
+ */
+static uint32_t index_from_vector(
+	uint32_t vector)
+{
+	uint32_t result = 0;
+	uint32_t mask = 1;
+
+	do {
+		if (vector == mask)
+			return result;
+
+		++result;
+		mask <<= 1;
+	} while (mask);
+
+	BREAK_TO_DEBUGGER();
+
+	return GPIO_ENUM_UNKNOWN;
+}
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	switch (offset) {
+	/* GENERIC */
+	case mmDC_GPIO_GENERIC_A:
+		*id = GPIO_ID_GENERIC;
+		switch (mask) {
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK:
+			*en = GPIO_GENERIC_A;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK:
+			*en = GPIO_GENERIC_B;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK:
+			*en = GPIO_GENERIC_C;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK:
+			*en = GPIO_GENERIC_D;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK:
+			*en = GPIO_GENERIC_E;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK:
+			*en = GPIO_GENERIC_F;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK:
+			*en = GPIO_GENERIC_G;
+			return true;
+		default:
+			BREAK_TO_DEBUGGER();
+			return false;
+		}
+	break;
+	/* HPD */
+	case mmDC_GPIO_HPD_A:
+		*id = GPIO_ID_HPD;
+		switch (mask) {
+		case DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK:
+			*en = GPIO_HPD_1;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK:
+			*en = GPIO_HPD_2;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK:
+			*en = GPIO_HPD_3;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK:
+			*en = GPIO_HPD_4;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK:
+			*en = GPIO_HPD_5;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK:
+			*en = GPIO_HPD_6;
+			return true;
+		default:
+			BREAK_TO_DEBUGGER();
+			return false;
+		}
+	break;
+	/* SYNCA */
+	case mmDC_GPIO_SYNCA_A:
+		*id = GPIO_ID_SYNC;
+		switch (mask) {
+		case DC_GPIO_SYNCA_A__DC_GPIO_HSYNCA_A_MASK:
+			*en = GPIO_SYNC_HSYNC_A;
+			return true;
+		case DC_GPIO_SYNCA_A__DC_GPIO_VSYNCA_A_MASK:
+			*en = GPIO_SYNC_VSYNC_A;
+			return true;
+		default:
+			BREAK_TO_DEBUGGER();
+			return false;
+		}
+	break;
+	/* mmDC_GPIO_GENLK_MASK */
+	case mmDC_GPIO_GENLK_A:
+		*id = GPIO_ID_GSL;
+		switch (mask) {
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK:
+			*en = GPIO_GSL_GENLOCK_CLOCK;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK:
+			*en = GPIO_GSL_GENLOCK_VSYNC;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_A;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_B;
+			return true;
+		default:
+			BREAK_TO_DEBUGGER();
+			return false;
+		}
+	break;
+	/* GPIOPAD */
+	case mmGPIOPAD_A:
+		*id = GPIO_ID_GPIO_PAD;
+		*en = index_from_vector(mask);
+		return (*en <= GPIO_GPIO_PAD_MAX);
+	/* DDC */
+	/* we don't care about the GPIO_ID for DDC
+	 * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
+	 * directly in the create method */
+	case mmDC_GPIO_DDC1_A:
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case mmDC_GPIO_DDC2_A:
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case mmDC_GPIO_DDC3_A:
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case mmDC_GPIO_DDC4_A:
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case mmDC_GPIO_DDC5_A:
+		*en = GPIO_DDC_LINE_DDC5;
+		return true;
+	case mmDC_GPIO_DDC6_A:
+		*en = GPIO_DDC_LINE_DDC6;
+		return true;
+	case mmDC_GPIO_DDCVGA_A:
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+	/* GPIO_I2CPAD */
+	case mmDC_GPIO_I2CPAD_A:
+		*en = GPIO_DDC_LINE_I2C_PAD;
+		return true;
+	/* Not implemented */
+	case mmDC_GPIO_PWRSEQ_A:
+	case mmDC_GPIO_PAD_STRENGTH_1:
+	case mmDC_GPIO_PAD_STRENGTH_2:
+	case mmDC_GPIO_DEBUG:
+		return false;
+	/* UNEXPECTED */
+	default:
+		BREAK_TO_DEBUGGER();
+		return false;
+	}
+}
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6DATA_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = mmDC_GPIO_DDC1_A;
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = mmDC_GPIO_DDC2_A;
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = mmDC_GPIO_DDC3_A;
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = mmDC_GPIO_DDC4_A;
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = mmDC_GPIO_DDC5_A;
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = mmDC_GPIO_DDC6_A;
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = mmDC_GPIO_DDCVGA_A;
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+			info->offset = mmDC_GPIO_I2CPAD_A;
+		break;
+		default:
+			BREAK_TO_DEBUGGER();
+			result = false;
+		}
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6CLK_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = mmDC_GPIO_DDC1_A;
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = mmDC_GPIO_DDC2_A;
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = mmDC_GPIO_DDC3_A;
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = mmDC_GPIO_DDC4_A;
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = mmDC_GPIO_DDC5_A;
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = mmDC_GPIO_DDC6_A;
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = mmDC_GPIO_DDCVGA_A;
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+			info->offset = mmDC_GPIO_I2CPAD_A;
+		break;
+		default:
+			BREAK_TO_DEBUGGER();
+			result = false;
+		}
+	break;
+	case GPIO_ID_GENERIC:
+		info->offset = mmDC_GPIO_GENERIC_A;
+		switch (en) {
+		case GPIO_GENERIC_A:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK;
+		break;
+		case GPIO_GENERIC_B:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK;
+		break;
+		case GPIO_GENERIC_C:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK;
+		break;
+		case GPIO_GENERIC_D:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK;
+		break;
+		case GPIO_GENERIC_E:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK;
+		break;
+		case GPIO_GENERIC_F:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK;
+		break;
+		case GPIO_GENERIC_G:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK;
+		break;
+		default:
+			BREAK_TO_DEBUGGER();
+			result = false;
+		}
+	break;
+	case GPIO_ID_HPD:
+		info->offset = mmDC_GPIO_HPD_A;
+		switch (en) {
+		case GPIO_HPD_1:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK;
+		break;
+		case GPIO_HPD_2:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK;
+		break;
+		case GPIO_HPD_3:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK;
+		break;
+		case GPIO_HPD_4:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK;
+		break;
+		case GPIO_HPD_5:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK;
+		break;
+		case GPIO_HPD_6:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK;
+		break;
+		default:
+			BREAK_TO_DEBUGGER();
+			result = false;
+		}
+	break;
+	case GPIO_ID_SYNC:
+		switch (en) {
+		case GPIO_SYNC_HSYNC_A:
+			info->offset = mmDC_GPIO_SYNCA_A;
+			info->mask = DC_GPIO_SYNCA_A__DC_GPIO_HSYNCA_A_MASK;
+		break;
+		case GPIO_SYNC_VSYNC_A:
+			info->offset = mmDC_GPIO_SYNCA_A;
+			info->mask = DC_GPIO_SYNCA_A__DC_GPIO_VSYNCA_A_MASK;
+		break;
+		case GPIO_SYNC_HSYNC_B:
+		case GPIO_SYNC_VSYNC_B:
+		default:
+			BREAK_TO_DEBUGGER();
+			result = false;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+			info->offset = mmDC_GPIO_GENLK_A;
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK;
+		break;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			info->offset = mmDC_GPIO_GENLK_A;
+			info->mask =
+				DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK;
+		break;
+		case GPIO_GSL_SWAPLOCK_A:
+			info->offset = mmDC_GPIO_GENLK_A;
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK;
+		break;
+		case GPIO_GSL_SWAPLOCK_B:
+			info->offset = mmDC_GPIO_GENLK_A;
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK;
+		break;
+		default:
+			BREAK_TO_DEBUGGER();
+			result = false;
+		}
+	break;
+	case GPIO_ID_GPIO_PAD:
+		info->offset = mmGPIOPAD_A;
+		info->mask = (1 << en);
+		result = (info->mask <= GPIO_GPIO_PAD_MAX);
+	break;
+	case GPIO_ID_VIP_PAD:
+	default:
+		BREAK_TO_DEBUGGER();
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+static const struct hw_translate_funcs funcs = {
+		.offset_to_id = offset_to_id,
+		.id_to_offset = id_to_offset,
+};
+
+void dal_hw_translate_dce60_init(
+	struct hw_translate *translate)
+{
+	translate->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce60/hw_translate_dce60.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2020 Mauro Rossi <issor.oruam@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_TRANSLATE_DCE60_H__
+#define __DAL_HW_TRANSLATE_DCE60_H__
+
+void dal_hw_translate_dce60_init(
+	struct hw_translate *tr);
+
+#endif

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce80/hw_factory_dce80.c

@@ -0,0 +1,175 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+#include "hw_factory_dce80.h"
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+#include "../hw_generic.h"
+
+#include "dce/dce_8_0_d.h"
+#include "dce/dce_8_0_sh_mask.h"
+
+
+#define REG(reg_name)\
+		mm ## reg_name
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+
+#define HPD_REG_LIST_DCE8(id) \
+	HPD_GPIO_REG_LIST(id), \
+	.int_status = mmDC_HPD ## id ## _INT_STATUS,\
+	.toggle_filt_cntl = mmDC_HPD ## id ## _TOGGLE_FILT_CNTL
+
+#define HPD_MASK_SH_LIST_DCE8(mask_sh) \
+		.DC_HPD_SENSE_DELAYED = DC_HPD1_INT_STATUS__DC_HPD1_SENSE_DELAYED ## mask_sh,\
+		.DC_HPD_SENSE = DC_HPD1_INT_STATUS__DC_HPD1_SENSE ## mask_sh,\
+		.DC_HPD_CONNECT_INT_DELAY = DC_HPD1_TOGGLE_FILT_CNTL__DC_HPD1_CONNECT_INT_DELAY ## mask_sh,\
+		.DC_HPD_DISCONNECT_INT_DELAY = DC_HPD1_TOGGLE_FILT_CNTL__DC_HPD1_DISCONNECT_INT_DELAY ## mask_sh
+
+#define hpd_regs(id) \
+{\
+	HPD_REG_LIST_DCE8(id)\
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(1),
+	hpd_regs(2),
+	hpd_regs(3),
+	hpd_regs(4),
+	hpd_regs(5),
+	hpd_regs(6)
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+		HPD_MASK_SH_LIST_DCE8(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+		HPD_MASK_SH_LIST_DCE8(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+ /* set field name */
+#define SF_DDC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs[] = {
+	ddc_data_regs(1),
+	ddc_data_regs(2),
+	ddc_data_regs(3),
+	ddc_data_regs(4),
+	ddc_data_regs(5),
+	ddc_data_regs(6),
+	ddc_vga_data_regs,
+	ddc_i2c_data_regs
+};
+
+static const struct ddc_registers ddc_clk_regs[] = {
+	ddc_clk_regs(1),
+	ddc_clk_regs(2),
+	ddc_clk_regs(3),
+	ddc_clk_regs(4),
+	ddc_clk_regs(5),
+	ddc_clk_regs(6),
+	ddc_vga_clk_regs,
+	ddc_i2c_clk_regs
+};
+
+static const struct ddc_sh_mask ddc_shift = {
+		DDC_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct ddc_sh_mask ddc_mask = {
+		DDC_MASK_SH_LIST(_MASK)
+};
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs[en];
+		ddc->base.regs = &ddc_data_regs[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs[en];
+		ddc->base.regs = &ddc_clk_regs[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	ddc->shifts = &ddc_shift;
+	ddc->masks = &ddc_mask;
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+static const struct hw_factory_funcs funcs = {
+	.init_ddc_data = dal_hw_ddc_init,
+	.init_generic = NULL,
+	.init_hpd = dal_hw_hpd_init,
+	.get_ddc_pin = dal_hw_ddc_get_pin,
+	.get_hpd_pin = dal_hw_hpd_get_pin,
+	.get_generic_pin = NULL,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers
+};
+
+void dal_hw_factory_dce80_init(
+	struct hw_factory *factory)
+{
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
+	factory->number_of_pins[GPIO_ID_GENERIC] = 7;
+	factory->number_of_pins[GPIO_ID_HPD] = 6;
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 31;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 2;
+	factory->number_of_pins[GPIO_ID_GSL] = 4;
+
+	factory->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce80/hw_factory_dce80.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_FACTORY_DCE80_H__
+#define __DAL_HW_FACTORY_DCE80_H__
+
+void dal_hw_factory_dce80_init(
+	struct hw_factory *factory);
+
+#endif

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce80/hw_translate_dce80.c

@@ -0,0 +1,411 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+#include "hw_translate_dce80.h"
+
+#include "dce/dce_8_0_d.h"
+#include "dce/dce_8_0_sh_mask.h"
+#include "smu/smu_7_0_1_d.h"
+
+/*
+ * @brief
+ * Returns index of first bit (starting with LSB) which is set
+ */
+static uint32_t index_from_vector(
+	uint32_t vector)
+{
+	uint32_t result = 0;
+	uint32_t mask = 1;
+
+	do {
+		if (vector == mask)
+			return result;
+
+		++result;
+		mask <<= 1;
+	} while (mask);
+
+	BREAK_TO_DEBUGGER();
+
+	return GPIO_ENUM_UNKNOWN;
+}
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	switch (offset) {
+	/* GENERIC */
+	case mmDC_GPIO_GENERIC_A:
+		*id = GPIO_ID_GENERIC;
+		switch (mask) {
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK:
+			*en = GPIO_GENERIC_A;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK:
+			*en = GPIO_GENERIC_B;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK:
+			*en = GPIO_GENERIC_C;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK:
+			*en = GPIO_GENERIC_D;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK:
+			*en = GPIO_GENERIC_E;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK:
+			*en = GPIO_GENERIC_F;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK:
+			*en = GPIO_GENERIC_G;
+			return true;
+		default:
+			BREAK_TO_DEBUGGER();
+			return false;
+		}
+	break;
+	/* HPD */
+	case mmDC_GPIO_HPD_A:
+		*id = GPIO_ID_HPD;
+		switch (mask) {
+		case DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK:
+			*en = GPIO_HPD_1;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK:
+			*en = GPIO_HPD_2;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK:
+			*en = GPIO_HPD_3;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK:
+			*en = GPIO_HPD_4;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK:
+			*en = GPIO_HPD_5;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK:
+			*en = GPIO_HPD_6;
+			return true;
+		default:
+			BREAK_TO_DEBUGGER();
+			return false;
+		}
+	break;
+	/* SYNCA */
+	case mmDC_GPIO_SYNCA_A:
+		*id = GPIO_ID_SYNC;
+		switch (mask) {
+		case DC_GPIO_SYNCA_A__DC_GPIO_HSYNCA_A_MASK:
+			*en = GPIO_SYNC_HSYNC_A;
+			return true;
+		case DC_GPIO_SYNCA_A__DC_GPIO_VSYNCA_A_MASK:
+			*en = GPIO_SYNC_VSYNC_A;
+			return true;
+		default:
+			BREAK_TO_DEBUGGER();
+			return false;
+		}
+	break;
+	/* mmDC_GPIO_GENLK_MASK */
+	case mmDC_GPIO_GENLK_A:
+		*id = GPIO_ID_GSL;
+		switch (mask) {
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK:
+			*en = GPIO_GSL_GENLOCK_CLOCK;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK:
+			*en = GPIO_GSL_GENLOCK_VSYNC;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_A;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_B;
+			return true;
+		default:
+			BREAK_TO_DEBUGGER();
+			return false;
+		}
+	break;
+	/* GPIOPAD */
+	case mmGPIOPAD_A:
+		*id = GPIO_ID_GPIO_PAD;
+		*en = index_from_vector(mask);
+		return (*en <= GPIO_GPIO_PAD_MAX);
+	/* DDC */
+	/* we don't care about the GPIO_ID for DDC
+	 * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
+	 * directly in the create method */
+	case mmDC_GPIO_DDC1_A:
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case mmDC_GPIO_DDC2_A:
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case mmDC_GPIO_DDC3_A:
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case mmDC_GPIO_DDC4_A:
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case mmDC_GPIO_DDC5_A:
+		*en = GPIO_DDC_LINE_DDC5;
+		return true;
+	case mmDC_GPIO_DDC6_A:
+		*en = GPIO_DDC_LINE_DDC6;
+		return true;
+	case mmDC_GPIO_DDCVGA_A:
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+	/* GPIO_I2CPAD */
+	case mmDC_GPIO_I2CPAD_A:
+		*en = GPIO_DDC_LINE_I2C_PAD;
+		return true;
+	/* Not implemented */
+	case mmDC_GPIO_PWRSEQ_A:
+	case mmDC_GPIO_PAD_STRENGTH_1:
+	case mmDC_GPIO_PAD_STRENGTH_2:
+	case mmDC_GPIO_DEBUG:
+		return false;
+	/* UNEXPECTED */
+	default:
+		BREAK_TO_DEBUGGER();
+		return false;
+	}
+}
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6DATA_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = mmDC_GPIO_DDC1_A;
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = mmDC_GPIO_DDC2_A;
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = mmDC_GPIO_DDC3_A;
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = mmDC_GPIO_DDC4_A;
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = mmDC_GPIO_DDC5_A;
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = mmDC_GPIO_DDC6_A;
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = mmDC_GPIO_DDCVGA_A;
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+			info->offset = mmDC_GPIO_I2CPAD_A;
+		break;
+		default:
+			BREAK_TO_DEBUGGER();
+			result = false;
+		}
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6CLK_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = mmDC_GPIO_DDC1_A;
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = mmDC_GPIO_DDC2_A;
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = mmDC_GPIO_DDC3_A;
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = mmDC_GPIO_DDC4_A;
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = mmDC_GPIO_DDC5_A;
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = mmDC_GPIO_DDC6_A;
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = mmDC_GPIO_DDCVGA_A;
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+			info->offset = mmDC_GPIO_I2CPAD_A;
+		break;
+		default:
+			BREAK_TO_DEBUGGER();
+			result = false;
+		}
+	break;
+	case GPIO_ID_GENERIC:
+		info->offset = mmDC_GPIO_GENERIC_A;
+		switch (en) {
+		case GPIO_GENERIC_A:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK;
+		break;
+		case GPIO_GENERIC_B:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK;
+		break;
+		case GPIO_GENERIC_C:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK;
+		break;
+		case GPIO_GENERIC_D:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK;
+		break;
+		case GPIO_GENERIC_E:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK;
+		break;
+		case GPIO_GENERIC_F:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK;
+		break;
+		case GPIO_GENERIC_G:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK;
+		break;
+		default:
+			BREAK_TO_DEBUGGER();
+			result = false;
+		}
+	break;
+	case GPIO_ID_HPD:
+		info->offset = mmDC_GPIO_HPD_A;
+		switch (en) {
+		case GPIO_HPD_1:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK;
+		break;
+		case GPIO_HPD_2:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK;
+		break;
+		case GPIO_HPD_3:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK;
+		break;
+		case GPIO_HPD_4:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK;
+		break;
+		case GPIO_HPD_5:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK;
+		break;
+		case GPIO_HPD_6:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK;
+		break;
+		default:
+			BREAK_TO_DEBUGGER();
+			result = false;
+		}
+	break;
+	case GPIO_ID_SYNC:
+		switch (en) {
+		case GPIO_SYNC_HSYNC_A:
+			info->offset = mmDC_GPIO_SYNCA_A;
+			info->mask = DC_GPIO_SYNCA_A__DC_GPIO_HSYNCA_A_MASK;
+		break;
+		case GPIO_SYNC_VSYNC_A:
+			info->offset = mmDC_GPIO_SYNCA_A;
+			info->mask = DC_GPIO_SYNCA_A__DC_GPIO_VSYNCA_A_MASK;
+		break;
+		case GPIO_SYNC_HSYNC_B:
+		case GPIO_SYNC_VSYNC_B:
+		default:
+			BREAK_TO_DEBUGGER();
+			result = false;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+			info->offset = mmDC_GPIO_GENLK_A;
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK;
+		break;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			info->offset = mmDC_GPIO_GENLK_A;
+			info->mask =
+				DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK;
+		break;
+		case GPIO_GSL_SWAPLOCK_A:
+			info->offset = mmDC_GPIO_GENLK_A;
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK;
+		break;
+		case GPIO_GSL_SWAPLOCK_B:
+			info->offset = mmDC_GPIO_GENLK_A;
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK;
+		break;
+		default:
+			BREAK_TO_DEBUGGER();
+			result = false;
+		}
+	break;
+	case GPIO_ID_GPIO_PAD:
+		info->offset = mmGPIOPAD_A;
+		info->mask = (1 << en);
+		result = (info->mask <= GPIO_GPIO_PAD_MAX);
+	break;
+	case GPIO_ID_VIP_PAD:
+	default:
+		BREAK_TO_DEBUGGER();
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+static const struct hw_translate_funcs funcs = {
+		.offset_to_id = offset_to_id,
+		.id_to_offset = id_to_offset,
+};
+
+void dal_hw_translate_dce80_init(
+	struct hw_translate *translate)
+{
+	translate->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dce80/hw_translate_dce80.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_TRANSLATE_DCE80_H__
+#define __DAL_HW_TRANSLATE_DCE80_H__
+
+void dal_hw_translate_dce80_init(
+	struct hw_translate *tr);
+
+#endif

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn10/hw_factory_dcn10.c

@@ -0,0 +1,231 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+#include "../hw_generic.h"
+
+#include "hw_factory_dcn10.h"
+
+#include "dcn/dcn_1_0_offset.h"
+#include "dcn/dcn_1_0_sh_mask.h"
+#include "soc15_hw_ip.h"
+#include "vega10_ip_offset.h"
+
+#define block HPD
+#define reg_num 0
+
+/* set field name */
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
+
+#define BASE_INNER(seg) \
+	DCE_BASE__INST0_SEG ## seg
+
+/* compile time expand base address. */
+#define BASE(seg) \
+	BASE_INNER(seg)
+
+#define REG(reg_name)\
+		BASE(mm ## reg_name ## _BASE_IDX) + mm ## reg_name
+
+#define REGI(reg_name, block, id)\
+	BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+				mm ## block ## id ## _ ## reg_name
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+
+#define hpd_regs(id) \
+{\
+	HPD_REG_LIST(id)\
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(0),
+	hpd_regs(1),
+	hpd_regs(2),
+	hpd_regs(3),
+	hpd_regs(4),
+	hpd_regs(5)
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+		HPD_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+		HPD_MASK_SH_LIST(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+ /* set field name */
+#define SF_DDC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs[] = {
+	ddc_data_regs(1),
+	ddc_data_regs(2),
+	ddc_data_regs(3),
+	ddc_data_regs(4),
+	ddc_data_regs(5),
+	ddc_data_regs(6),
+	ddc_vga_data_regs,
+	ddc_i2c_data_regs
+};
+
+static const struct ddc_registers ddc_clk_regs[] = {
+	ddc_clk_regs(1),
+	ddc_clk_regs(2),
+	ddc_clk_regs(3),
+	ddc_clk_regs(4),
+	ddc_clk_regs(5),
+	ddc_clk_regs(6),
+	ddc_vga_clk_regs,
+	ddc_i2c_clk_regs
+};
+
+static const struct ddc_sh_mask ddc_shift = {
+		DDC_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct ddc_sh_mask ddc_mask = {
+		DDC_MASK_SH_LIST(_MASK)
+};
+
+#include "../generic_regs.h"
+
+/* set field name */
+#define SF_GENERIC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+#define generic_regs(id) \
+{\
+	GENERIC_REG_LIST(id)\
+}
+
+static const struct generic_registers generic_regs[] = {
+	generic_regs(A),
+	generic_regs(B),
+};
+
+static const struct generic_sh_mask generic_shift[] = {
+	GENERIC_MASK_SH_LIST(__SHIFT, A),
+	GENERIC_MASK_SH_LIST(__SHIFT, B),
+};
+
+static const struct generic_sh_mask generic_mask[] = {
+	GENERIC_MASK_SH_LIST(_MASK, A),
+	GENERIC_MASK_SH_LIST(_MASK, B),
+};
+
+static void define_generic_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_generic *generic = HW_GENERIC_FROM_BASE(pin);
+
+	generic->regs = &generic_regs[en];
+	generic->shifts = &generic_shift[en];
+	generic->masks = &generic_mask[en];
+	generic->base.regs = &generic_regs[en].gpio;
+}
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs[en];
+		ddc->base.regs = &ddc_data_regs[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs[en];
+		ddc->base.regs = &ddc_clk_regs[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	ddc->shifts = &ddc_shift;
+	ddc->masks = &ddc_mask;
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+
+/* function table */
+static const struct hw_factory_funcs funcs = {
+	.init_ddc_data = dal_hw_ddc_init,
+	.init_generic = dal_hw_generic_init,
+	.init_hpd = dal_hw_hpd_init,
+	.get_ddc_pin = dal_hw_ddc_get_pin,
+	.get_hpd_pin = dal_hw_hpd_get_pin,
+	.get_generic_pin = dal_hw_generic_get_pin,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers,
+	.define_generic_registers = define_generic_registers
+};
+/*
+ * dal_hw_factory_dcn10_init
+ *
+ * @brief
+ * Initialize HW factory function pointers and pin info
+ *
+ * @param
+ * struct hw_factory *factory - [out] struct of function pointers
+ */
+void dal_hw_factory_dcn10_init(struct hw_factory *factory)
+{
+	/*TODO check ASIC CAPs*/
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
+	factory->number_of_pins[GPIO_ID_GENERIC] = 7;
+	factory->number_of_pins[GPIO_ID_HPD] = 6;
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 31;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 2;
+	factory->number_of_pins[GPIO_ID_GSL] = 4;
+
+	factory->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn10/hw_factory_dcn10.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_FACTORY_DCN10_H__
+#define __DAL_HW_FACTORY_DCN10_H__
+
+/* Initialize HW factory function pointers and pin info */
+void dal_hw_factory_dcn10_init(struct hw_factory *factory);
+
+#endif /* __DAL_HW_FACTORY_DCN10_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn10/hw_translate_dcn10.c

@@ -0,0 +1,409 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+
+#include "hw_translate_dcn10.h"
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+#include "dcn/dcn_1_0_offset.h"
+#include "dcn/dcn_1_0_sh_mask.h"
+#include "soc15_hw_ip.h"
+#include "vega10_ip_offset.h"
+
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+#define BASE_INNER(seg) \
+	DCE_BASE__INST0_SEG ## seg
+
+/* compile time expand base address. */
+#define BASE(seg) \
+	BASE_INNER(seg)
+
+#define REG(reg_name)\
+		BASE(mm ## reg_name ## _BASE_IDX) + mm ## reg_name
+
+#define REGI(reg_name, block, id)\
+	BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+				mm ## block ## id ## _ ## reg_name
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	switch (offset) {
+	/* GENERIC */
+	case REG(DC_GPIO_GENERIC_A):
+		*id = GPIO_ID_GENERIC;
+		switch (mask) {
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK:
+			*en = GPIO_GENERIC_A;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK:
+			*en = GPIO_GENERIC_B;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK:
+			*en = GPIO_GENERIC_C;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK:
+			*en = GPIO_GENERIC_D;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK:
+			*en = GPIO_GENERIC_E;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK:
+			*en = GPIO_GENERIC_F;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK:
+			*en = GPIO_GENERIC_G;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* HPD */
+	case REG(DC_GPIO_HPD_A):
+		*id = GPIO_ID_HPD;
+		switch (mask) {
+		case DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK:
+			*en = GPIO_HPD_1;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK:
+			*en = GPIO_HPD_2;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK:
+			*en = GPIO_HPD_3;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK:
+			*en = GPIO_HPD_4;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK:
+			*en = GPIO_HPD_5;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK:
+			*en = GPIO_HPD_6;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* SYNCA */
+	case REG(DC_GPIO_SYNCA_A):
+		*id = GPIO_ID_SYNC;
+		switch (mask) {
+		case DC_GPIO_SYNCA_A__DC_GPIO_HSYNCA_A_MASK:
+			*en = GPIO_SYNC_HSYNC_A;
+			return true;
+		case DC_GPIO_SYNCA_A__DC_GPIO_VSYNCA_A_MASK:
+			*en = GPIO_SYNC_VSYNC_A;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* REG(DC_GPIO_GENLK_MASK */
+	case REG(DC_GPIO_GENLK_A):
+		*id = GPIO_ID_GSL;
+		switch (mask) {
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK:
+			*en = GPIO_GSL_GENLOCK_CLOCK;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK:
+			*en = GPIO_GSL_GENLOCK_VSYNC;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_A;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_B;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* DDC */
+	/* we don't care about the GPIO_ID for DDC
+	 * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
+	 * directly in the create method */
+	case REG(DC_GPIO_DDC1_A):
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case REG(DC_GPIO_DDC2_A):
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case REG(DC_GPIO_DDC3_A):
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case REG(DC_GPIO_DDC4_A):
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case REG(DC_GPIO_DDC5_A):
+		*en = GPIO_DDC_LINE_DDC5;
+		return true;
+	case REG(DC_GPIO_DDC6_A):
+		*en = GPIO_DDC_LINE_DDC6;
+		return true;
+	case REG(DC_GPIO_DDCVGA_A):
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+	/* GPIO_I2CPAD */
+	case REG(DC_GPIO_I2CPAD_A):
+		*en = GPIO_DDC_LINE_I2C_PAD;
+		return true;
+	/* Not implemented */
+	case REG(DC_GPIO_PWRSEQ_A):
+	case REG(DC_GPIO_PAD_STRENGTH_1):
+	case REG(DC_GPIO_PAD_STRENGTH_2):
+	case REG(DC_GPIO_DEBUG):
+		return false;
+	/* UNEXPECTED */
+	default:
+		ASSERT_CRITICAL(false);
+		return false;
+	}
+}
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6DATA_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = REG(DC_GPIO_DDC6_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+			info->offset = REG(DC_GPIO_I2CPAD_A);
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6CLK_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = REG(DC_GPIO_DDC6_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+			info->offset = REG(DC_GPIO_I2CPAD_A);
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GENERIC:
+		info->offset = REG(DC_GPIO_GENERIC_A);
+		switch (en) {
+		case GPIO_GENERIC_A:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK;
+		break;
+		case GPIO_GENERIC_B:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK;
+		break;
+		case GPIO_GENERIC_C:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK;
+		break;
+		case GPIO_GENERIC_D:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK;
+		break;
+		case GPIO_GENERIC_E:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK;
+		break;
+		case GPIO_GENERIC_F:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK;
+		break;
+		case GPIO_GENERIC_G:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_HPD:
+		info->offset = REG(DC_GPIO_HPD_A);
+		switch (en) {
+		case GPIO_HPD_1:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK;
+		break;
+		case GPIO_HPD_2:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK;
+		break;
+		case GPIO_HPD_3:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK;
+		break;
+		case GPIO_HPD_4:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK;
+		break;
+		case GPIO_HPD_5:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK;
+		break;
+		case GPIO_HPD_6:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_SYNC:
+		switch (en) {
+		case GPIO_SYNC_HSYNC_A:
+			info->offset = REG(DC_GPIO_SYNCA_A);
+			info->mask = DC_GPIO_SYNCA_A__DC_GPIO_HSYNCA_A_MASK;
+		break;
+		case GPIO_SYNC_VSYNC_A:
+			info->offset = REG(DC_GPIO_SYNCA_A);
+			info->mask = DC_GPIO_SYNCA_A__DC_GPIO_VSYNCA_A_MASK;
+		break;
+		case GPIO_SYNC_HSYNC_B:
+		case GPIO_SYNC_VSYNC_B:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+			info->offset = REG(DC_GPIO_GENLK_A);
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK;
+		break;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			info->offset = REG(DC_GPIO_GENLK_A);
+			info->mask =
+				DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK;
+		break;
+		case GPIO_GSL_SWAPLOCK_A:
+			info->offset = REG(DC_GPIO_GENLK_A);
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK;
+		break;
+		case GPIO_GSL_SWAPLOCK_B:
+			info->offset = REG(DC_GPIO_GENLK_A);
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_VIP_PAD:
+	default:
+		ASSERT_CRITICAL(false);
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+/* function table */
+static const struct hw_translate_funcs funcs = {
+	.offset_to_id = offset_to_id,
+	.id_to_offset = id_to_offset,
+};
+
+/*
+ * dal_hw_translate_dcn10_init
+ *
+ * @brief
+ * Initialize Hw translate function pointers.
+ *
+ * @param
+ * struct hw_translate *tr - [out] struct of function pointers
+ *
+ */
+void dal_hw_translate_dcn10_init(struct hw_translate *tr)
+{
+	tr->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn10/hw_translate_dcn10.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_TRANSLATE_DCN10_H__
+#define __DAL_HW_TRANSLATE_DCN10_H__
+
+struct hw_translate;
+
+/* Initialize Hw translate function pointers */
+void dal_hw_translate_dcn10_init(struct hw_translate *tr);
+
+#endif /* __DAL_HW_TRANSLATE_DCN10_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn20/hw_factory_dcn20.c

@@ -0,0 +1,261 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+#include "../hw_generic.h"
+
+#include "hw_factory_dcn20.h"
+
+
+#include "dcn/dcn_2_0_0_offset.h"
+#include "dcn/dcn_2_0_0_sh_mask.h"
+#include "navi10_ip_offset.h"
+
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+
+
+#define REG(reg_name)\
+		BASE(mm ## reg_name ## _BASE_IDX) + mm ## reg_name
+
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
+
+#define REGI(reg_name, block, id)\
+	BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+				mm ## block ## id ## _ ## reg_name
+
+#define SF(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+
+
+#define hpd_regs(id) \
+{\
+	HPD_REG_LIST(id)\
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(0),
+	hpd_regs(1),
+	hpd_regs(2),
+	hpd_regs(3),
+	hpd_regs(4),
+	hpd_regs(5),
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+		HPD_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+		HPD_MASK_SH_LIST(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+ /* set field name */
+#define SF_DDC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs_dcn[] = {
+	ddc_data_regs_dcn2(1),
+	ddc_data_regs_dcn2(2),
+	ddc_data_regs_dcn2(3),
+	ddc_data_regs_dcn2(4),
+	ddc_data_regs_dcn2(5),
+	ddc_data_regs_dcn2(6),
+	{
+			DDC_GPIO_VGA_REG_LIST(DATA),
+			.ddc_setup = 0,
+			.phy_aux_cntl = 0,
+			.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+static const struct ddc_registers ddc_clk_regs_dcn[] = {
+	ddc_clk_regs_dcn2(1),
+	ddc_clk_regs_dcn2(2),
+	ddc_clk_regs_dcn2(3),
+	ddc_clk_regs_dcn2(4),
+	ddc_clk_regs_dcn2(5),
+	ddc_clk_regs_dcn2(6),
+	{
+			DDC_GPIO_VGA_REG_LIST(CLK),
+			.ddc_setup = 0,
+			.phy_aux_cntl = 0,
+			.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+static const struct ddc_sh_mask ddc_shift[] = {
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 1),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 2),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 3),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 4),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 5),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 6),
+	DDC_MASK_SH_LIST_DCN2_VGA(__SHIFT)
+};
+
+static const struct ddc_sh_mask ddc_mask[] = {
+	DDC_MASK_SH_LIST_DCN2(_MASK, 1),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 2),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 3),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 4),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 5),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 6),
+	DDC_MASK_SH_LIST_DCN2_VGA(_MASK)
+};
+
+#include "../generic_regs.h"
+
+/* set field name */
+#define SF_GENERIC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+#define generic_regs(id) \
+{\
+	GENERIC_REG_LIST(id)\
+}
+
+static const struct generic_registers generic_regs[] = {
+	generic_regs(A),
+	generic_regs(B),
+};
+
+static const struct generic_sh_mask generic_shift[] = {
+	GENERIC_MASK_SH_LIST(__SHIFT, A),
+	GENERIC_MASK_SH_LIST(__SHIFT, B),
+};
+
+static const struct generic_sh_mask generic_mask[] = {
+	GENERIC_MASK_SH_LIST(_MASK, A),
+	GENERIC_MASK_SH_LIST(_MASK, B),
+};
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs_dcn[en];
+		ddc->base.regs = &ddc_data_regs_dcn[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs_dcn[en];
+		ddc->base.regs = &ddc_clk_regs_dcn[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	ddc->shifts = &ddc_shift[en];
+	ddc->masks = &ddc_mask[en];
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+static void define_generic_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_generic *generic = HW_GENERIC_FROM_BASE(pin);
+
+	generic->regs = &generic_regs[en];
+	generic->shifts = &generic_shift[en];
+	generic->masks = &generic_mask[en];
+	generic->base.regs = &generic_regs[en].gpio;
+}
+
+/* function table */
+static const struct hw_factory_funcs funcs = {
+	.init_ddc_data = dal_hw_ddc_init,
+	.init_generic = dal_hw_generic_init,
+	.init_hpd = dal_hw_hpd_init,
+	.get_ddc_pin = dal_hw_ddc_get_pin,
+	.get_hpd_pin = dal_hw_hpd_get_pin,
+	.get_generic_pin = dal_hw_generic_get_pin,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers,
+	.define_generic_registers = define_generic_registers,
+};
+/*
+ * dal_hw_factory_dcn10_init
+ *
+ * @brief
+ * Initialize HW factory function pointers and pin info
+ *
+ * @param
+ * struct hw_factory *factory - [out] struct of function pointers
+ */
+void dal_hw_factory_dcn20_init(struct hw_factory *factory)
+{
+	/*TODO check ASIC CAPs*/
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
+	factory->number_of_pins[GPIO_ID_GENERIC] = 4;
+	factory->number_of_pins[GPIO_ID_HPD] = 6;
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 28;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 0;
+	factory->number_of_pins[GPIO_ID_GSL] = 0;/*add this*/
+
+	factory->funcs = &funcs;
+}
+

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn20/hw_factory_dcn20.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#ifndef __DAL_HW_FACTORY_DCN20_H__
+#define __DAL_HW_FACTORY_DCN20_H__
+
+/* Initialize HW factory function pointers and pin info */
+void dal_hw_factory_dcn20_init(struct hw_factory *factory);
+
+#endif /* __DAL_HW_FACTORY_DCN20_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn20/hw_translate_dcn20.c

@@ -0,0 +1,383 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+#include "hw_translate_dcn20.h"
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+#include "dcn/dcn_1_0_offset.h"
+#include "dcn/dcn_1_0_sh_mask.h"
+#include "soc15_hw_ip.h"
+#include "vega10_ip_offset.h"
+
+
+
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+#undef REG
+#define REG(reg_name)\
+		BASE(mm ## reg_name ## _BASE_IDX) + mm ## reg_name
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	switch (offset) {
+	/* GENERIC */
+	case REG(DC_GPIO_GENERIC_A):
+		*id = GPIO_ID_GENERIC;
+		switch (mask) {
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK:
+			*en = GPIO_GENERIC_A;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK:
+			*en = GPIO_GENERIC_B;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK:
+			*en = GPIO_GENERIC_C;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK:
+			*en = GPIO_GENERIC_D;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK:
+			*en = GPIO_GENERIC_E;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK:
+			*en = GPIO_GENERIC_F;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK:
+			*en = GPIO_GENERIC_G;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* HPD */
+	case REG(DC_GPIO_HPD_A):
+		*id = GPIO_ID_HPD;
+		switch (mask) {
+		case DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK:
+			*en = GPIO_HPD_1;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK:
+			*en = GPIO_HPD_2;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK:
+			*en = GPIO_HPD_3;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK:
+			*en = GPIO_HPD_4;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK:
+			*en = GPIO_HPD_5;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK:
+			*en = GPIO_HPD_6;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* REG(DC_GPIO_GENLK_MASK */
+	case REG(DC_GPIO_GENLK_A):
+		*id = GPIO_ID_GSL;
+		switch (mask) {
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK:
+			*en = GPIO_GSL_GENLOCK_CLOCK;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK:
+			*en = GPIO_GSL_GENLOCK_VSYNC;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_A;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_B;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* DDC */
+	/* we don't care about the GPIO_ID for DDC
+	 * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
+	 * directly in the create method
+	 */
+	case REG(DC_GPIO_DDC1_A):
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case REG(DC_GPIO_DDC2_A):
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case REG(DC_GPIO_DDC3_A):
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case REG(DC_GPIO_DDC4_A):
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case REG(DC_GPIO_DDC5_A):
+		*en = GPIO_DDC_LINE_DDC5;
+		return true;
+	case REG(DC_GPIO_DDC6_A):
+		*en = GPIO_DDC_LINE_DDC6;
+		return true;
+	case REG(DC_GPIO_DDCVGA_A):
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+
+/*
+ *	case REG(DC_GPIO_I2CPAD_A): not exit
+ *	case REG(DC_GPIO_PWRSEQ_A):
+ *	case REG(DC_GPIO_PAD_STRENGTH_1):
+ *	case REG(DC_GPIO_PAD_STRENGTH_2):
+ *	case REG(DC_GPIO_DEBUG):
+ */
+	/* UNEXPECTED */
+	default:
+/*	case REG(DC_GPIO_SYNCA_A): not exist */
+		ASSERT_CRITICAL(false);
+		return false;
+	}
+}
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6DATA_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = REG(DC_GPIO_DDC6_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6CLK_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = REG(DC_GPIO_DDC6_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GENERIC:
+		info->offset = REG(DC_GPIO_GENERIC_A);
+		switch (en) {
+		case GPIO_GENERIC_A:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK;
+		break;
+		case GPIO_GENERIC_B:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK;
+		break;
+		case GPIO_GENERIC_C:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK;
+		break;
+		case GPIO_GENERIC_D:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK;
+		break;
+		case GPIO_GENERIC_E:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK;
+		break;
+		case GPIO_GENERIC_F:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK;
+		break;
+		case GPIO_GENERIC_G:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_HPD:
+		info->offset = REG(DC_GPIO_HPD_A);
+		switch (en) {
+		case GPIO_HPD_1:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK;
+		break;
+		case GPIO_HPD_2:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK;
+		break;
+		case GPIO_HPD_3:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK;
+		break;
+		case GPIO_HPD_4:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK;
+		break;
+		case GPIO_HPD_5:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK;
+		break;
+		case GPIO_HPD_6:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+				/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_SWAPLOCK_A:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_SWAPLOCK_B:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_SYNC:
+	case GPIO_ID_VIP_PAD:
+	default:
+		ASSERT_CRITICAL(false);
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+/* function table */
+static const struct hw_translate_funcs funcs = {
+	.offset_to_id = offset_to_id,
+	.id_to_offset = id_to_offset,
+};
+
+/*
+ * dal_hw_translate_dcn10_init
+ *
+ * @brief
+ * Initialize Hw translate function pointers.
+ *
+ * @param
+ * struct hw_translate *tr - [out] struct of function pointers
+ *
+ */
+void dal_hw_translate_dcn20_init(struct hw_translate *tr)
+{
+	tr->funcs = &funcs;
+}
+

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn20/hw_translate_dcn20.h

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#ifndef __DAL_HW_TRANSLATE_DCN20_H__
+#define __DAL_HW_TRANSLATE_DCN20_H__
+
+struct hw_translate;
+
+/* Initialize Hw translate function pointers */
+void dal_hw_translate_dcn20_init(struct hw_translate *tr);
+
+#endif /* __DAL_HW_TRANSLATE_DCN20_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn21/hw_factory_dcn21.c

@@ -0,0 +1,240 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+#include "../hw_generic.h"
+
+#include "hw_factory_dcn21.h"
+
+#include "dcn/dcn_2_1_0_offset.h"
+#include "dcn/dcn_2_1_0_sh_mask.h"
+#include "renoir_ip_offset.h"
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DMU_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+
+
+#define REG(reg_name)\
+		BASE(mm ## reg_name ## _BASE_IDX) + mm ## reg_name
+
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
+
+#define REGI(reg_name, block, id)\
+	BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+				mm ## block ## id ## _ ## reg_name
+
+#define SF(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+
+
+#define hpd_regs(id) \
+{\
+	HPD_REG_LIST(id)\
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(0),
+	hpd_regs(1),
+	hpd_regs(2),
+	hpd_regs(3),
+	hpd_regs(4),
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+		HPD_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+		HPD_MASK_SH_LIST(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+ /* set field name */
+#define SF_DDC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs_dcn[] = {
+	ddc_data_regs_dcn2(1),
+	ddc_data_regs_dcn2(2),
+	ddc_data_regs_dcn2(3),
+	ddc_data_regs_dcn2(4),
+	ddc_data_regs_dcn2(5),
+};
+
+static const struct ddc_registers ddc_clk_regs_dcn[] = {
+	ddc_clk_regs_dcn2(1),
+	ddc_clk_regs_dcn2(2),
+	ddc_clk_regs_dcn2(3),
+	ddc_clk_regs_dcn2(4),
+	ddc_clk_regs_dcn2(5),
+};
+
+static const struct ddc_sh_mask ddc_shift[] = {
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 1),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 2),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 3),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 4),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 5),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 6)
+};
+
+static const struct ddc_sh_mask ddc_mask[] = {
+	DDC_MASK_SH_LIST_DCN2(_MASK, 1),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 2),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 3),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 4),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 5),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 6)
+};
+
+#include "../generic_regs.h"
+
+/* set field name */
+#define SF_GENERIC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+#define generic_regs(id) \
+{\
+	GENERIC_REG_LIST(id)\
+}
+
+static const struct generic_registers generic_regs[] = {
+	generic_regs(A),
+};
+
+static const struct generic_sh_mask generic_shift[] = {
+	GENERIC_MASK_SH_LIST(__SHIFT, A),
+};
+
+static const struct generic_sh_mask generic_mask[] = {
+	GENERIC_MASK_SH_LIST(_MASK, A),
+};
+
+static void define_generic_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_generic *generic = HW_GENERIC_FROM_BASE(pin);
+
+	generic->regs = &generic_regs[en];
+	generic->shifts = &generic_shift[en];
+	generic->masks = &generic_mask[en];
+	generic->base.regs = &generic_regs[en].gpio;
+}
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs_dcn[en];
+		ddc->base.regs = &ddc_data_regs_dcn[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs_dcn[en];
+		ddc->base.regs = &ddc_clk_regs_dcn[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	ddc->shifts = &ddc_shift[en];
+	ddc->masks = &ddc_mask[en];
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+
+/* function table */
+static const struct hw_factory_funcs funcs = {
+	.init_ddc_data = dal_hw_ddc_init,
+	.init_generic = dal_hw_generic_init,
+	.init_hpd = dal_hw_hpd_init,
+	.get_ddc_pin = dal_hw_ddc_get_pin,
+	.get_hpd_pin = dal_hw_hpd_get_pin,
+	.get_generic_pin = dal_hw_generic_get_pin,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers,
+	.define_generic_registers = define_generic_registers
+};
+/*
+ * dal_hw_factory_dcn10_init
+ *
+ * @brief
+ * Initialize HW factory function pointers and pin info
+ *
+ * @param
+ * struct hw_factory *factory - [out] struct of function pointers
+ */
+void dal_hw_factory_dcn21_init(struct hw_factory *factory)
+{
+	/*TODO check ASIC CAPs*/
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
+	factory->number_of_pins[GPIO_ID_GENERIC] = 4;
+	factory->number_of_pins[GPIO_ID_HPD] = 6;
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 28;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 0;
+	factory->number_of_pins[GPIO_ID_GSL] = 0;/*add this*/
+
+	factory->funcs = &funcs;
+}
+

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn21/hw_factory_dcn21.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#ifndef __DAL_HW_FACTORY_DCN21_H__
+#define __DAL_HW_FACTORY_DCN21_H__
+
+/* Initialize HW factory function pointers and pin info */
+void dal_hw_factory_dcn21_init(struct hw_factory *factory);
+
+#endif /* __DAL_HW_FACTORY_DCN20_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn21/hw_translate_dcn21.c

@@ -0,0 +1,373 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+#include "hw_translate_dcn21.h"
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+#include "dcn/dcn_2_1_0_offset.h"
+#include "dcn/dcn_2_1_0_sh_mask.h"
+#include "renoir_ip_offset.h"
+
+
+
+
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DMU_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+#undef REG
+#define REG(reg_name)\
+		BASE(mm ## reg_name ## _BASE_IDX) + mm ## reg_name
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	switch (offset) {
+	/* GENERIC */
+	case REG(DC_GPIO_GENERIC_A):
+		*id = GPIO_ID_GENERIC;
+		switch (mask) {
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK:
+			*en = GPIO_GENERIC_A;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK:
+			*en = GPIO_GENERIC_B;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK:
+			*en = GPIO_GENERIC_C;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK:
+			*en = GPIO_GENERIC_D;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK:
+			*en = GPIO_GENERIC_E;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK:
+			*en = GPIO_GENERIC_F;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK:
+			*en = GPIO_GENERIC_G;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* HPD */
+	case REG(DC_GPIO_HPD_A):
+		*id = GPIO_ID_HPD;
+		switch (mask) {
+		case DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK:
+			*en = GPIO_HPD_1;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK:
+			*en = GPIO_HPD_2;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK:
+			*en = GPIO_HPD_3;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK:
+			*en = GPIO_HPD_4;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK:
+			*en = GPIO_HPD_5;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK:
+			*en = GPIO_HPD_6;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* REG(DC_GPIO_GENLK_MASK */
+	case REG(DC_GPIO_GENLK_A):
+		*id = GPIO_ID_GSL;
+		switch (mask) {
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK:
+			*en = GPIO_GSL_GENLOCK_CLOCK;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK:
+			*en = GPIO_GSL_GENLOCK_VSYNC;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_A;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_B;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* DDC */
+	/* we don't care about the GPIO_ID for DDC
+	 * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
+	 * directly in the create method
+	 */
+	case REG(DC_GPIO_DDC1_A):
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case REG(DC_GPIO_DDC2_A):
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case REG(DC_GPIO_DDC3_A):
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case REG(DC_GPIO_DDC4_A):
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case REG(DC_GPIO_DDC5_A):
+		*en = GPIO_DDC_LINE_DDC5;
+		return true;
+	case REG(DC_GPIO_DDCVGA_A):
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+
+/*
+ *	case REG(DC_GPIO_I2CPAD_A): not exit
+ *	case REG(DC_GPIO_PWRSEQ_A):
+ *	case REG(DC_GPIO_PAD_STRENGTH_1):
+ *	case REG(DC_GPIO_PAD_STRENGTH_2):
+ *	case REG(DC_GPIO_DEBUG):
+ */
+	/* UNEXPECTED */
+	default:
+/*	case REG(DC_GPIO_SYNCA_A): not exist */
+		ASSERT_CRITICAL(false);
+		return false;
+	}
+}
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDC5_A__DC_GPIO_DDC5DATA_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDC5_A__DC_GPIO_DDC5CLK_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GENERIC:
+		info->offset = REG(DC_GPIO_GENERIC_A);
+		switch (en) {
+		case GPIO_GENERIC_A:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK;
+		break;
+		case GPIO_GENERIC_B:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK;
+		break;
+		case GPIO_GENERIC_C:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK;
+		break;
+		case GPIO_GENERIC_D:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK;
+		break;
+		case GPIO_GENERIC_E:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK;
+		break;
+		case GPIO_GENERIC_F:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK;
+		break;
+		case GPIO_GENERIC_G:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_HPD:
+		info->offset = REG(DC_GPIO_HPD_A);
+		switch (en) {
+		case GPIO_HPD_1:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK;
+		break;
+		case GPIO_HPD_2:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK;
+		break;
+		case GPIO_HPD_3:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK;
+		break;
+		case GPIO_HPD_4:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK;
+		break;
+		case GPIO_HPD_5:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK;
+		break;
+		case GPIO_HPD_6:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+				/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_SWAPLOCK_A:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_SWAPLOCK_B:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_SYNC:
+	case GPIO_ID_VIP_PAD:
+	default:
+		ASSERT_CRITICAL(false);
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+/* function table */
+static const struct hw_translate_funcs funcs = {
+	.offset_to_id = offset_to_id,
+	.id_to_offset = id_to_offset,
+};
+
+/*
+ * dal_hw_translate_dcn10_init
+ *
+ * @brief
+ * Initialize Hw translate function pointers.
+ *
+ * @param
+ * struct hw_translate *tr - [out] struct of function pointers
+ *
+ */
+void dal_hw_translate_dcn21_init(struct hw_translate *tr)
+{
+	tr->funcs = &funcs;
+}
+

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn21/hw_translate_dcn21.h

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#ifndef __DAL_HW_TRANSLATE_DCN21_H__
+#define __DAL_HW_TRANSLATE_DCN21_H__
+
+struct hw_translate;
+
+/* Initialize Hw translate function pointers */
+void dal_hw_translate_dcn21_init(struct hw_translate *tr);
+
+#endif /* __DAL_HW_TRANSLATE_DCN21_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn30/hw_factory_dcn30.c

@@ -0,0 +1,269 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+#include "../hw_generic.h"
+
+#include "hw_factory_dcn30.h"
+
+
+#include "sienna_cichlid_ip_offset.h"
+#include "dcn/dcn_3_0_0_offset.h"
+#include "dcn/dcn_3_0_0_sh_mask.h"
+
+#include "nbio/nbio_7_4_offset.h"
+
+#include "dpcs/dpcs_3_0_0_offset.h"
+#include "dpcs/dpcs_3_0_0_sh_mask.h"
+
+#include "mmhub/mmhub_2_0_0_offset.h"
+#include "mmhub/mmhub_2_0_0_sh_mask.h"
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+
+
+#define REG(reg_name)\
+		BASE(mm ## reg_name ## _BASE_IDX) + mm ## reg_name
+
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
+
+#define REGI(reg_name, block, id)\
+	BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+				mm ## block ## id ## _ ## reg_name
+
+#define SF(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+
+
+#define hpd_regs(id) \
+{\
+	HPD_REG_LIST(id)\
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(0),
+	hpd_regs(1),
+	hpd_regs(2),
+	hpd_regs(3),
+	hpd_regs(4),
+	hpd_regs(5),
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+		HPD_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+		HPD_MASK_SH_LIST(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+ /* set field name */
+#define SF_DDC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs_dcn[] = {
+	ddc_data_regs_dcn2(1),
+	ddc_data_regs_dcn2(2),
+	ddc_data_regs_dcn2(3),
+	ddc_data_regs_dcn2(4),
+	ddc_data_regs_dcn2(5),
+	ddc_data_regs_dcn2(6),
+	{
+			DDC_GPIO_VGA_REG_LIST(DATA),
+			.ddc_setup = 0,
+			.phy_aux_cntl = 0,
+			.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+static const struct ddc_registers ddc_clk_regs_dcn[] = {
+	ddc_clk_regs_dcn2(1),
+	ddc_clk_regs_dcn2(2),
+	ddc_clk_regs_dcn2(3),
+	ddc_clk_regs_dcn2(4),
+	ddc_clk_regs_dcn2(5),
+	ddc_clk_regs_dcn2(6),
+	{
+			DDC_GPIO_VGA_REG_LIST(CLK),
+			.ddc_setup = 0,
+			.phy_aux_cntl = 0,
+			.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+static const struct ddc_sh_mask ddc_shift[] = {
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 1),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 2),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 3),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 4),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 5),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 6),
+	DDC_MASK_SH_LIST_DCN2_VGA(__SHIFT)
+};
+
+static const struct ddc_sh_mask ddc_mask[] = {
+	DDC_MASK_SH_LIST_DCN2(_MASK, 1),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 2),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 3),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 4),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 5),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 6),
+	DDC_MASK_SH_LIST_DCN2_VGA(_MASK)
+};
+
+#include "../generic_regs.h"
+
+/* set field name */
+#define SF_GENERIC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+#define generic_regs(id) \
+{\
+	GENERIC_REG_LIST(id)\
+}
+
+static const struct generic_registers generic_regs[] = {
+	generic_regs(A),
+	generic_regs(B),
+};
+
+static const struct generic_sh_mask generic_shift[] = {
+	GENERIC_MASK_SH_LIST(__SHIFT, A),
+	GENERIC_MASK_SH_LIST(__SHIFT, B),
+};
+
+static const struct generic_sh_mask generic_mask[] = {
+	GENERIC_MASK_SH_LIST(_MASK, A),
+	GENERIC_MASK_SH_LIST(_MASK, B),
+};
+
+static void define_generic_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_generic *generic = HW_GENERIC_FROM_BASE(pin);
+
+	generic->regs = &generic_regs[en];
+	generic->shifts = &generic_shift[en];
+	generic->masks = &generic_mask[en];
+	generic->base.regs = &generic_regs[en].gpio;
+}
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs_dcn[en];
+		ddc->base.regs = &ddc_data_regs_dcn[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs_dcn[en];
+		ddc->base.regs = &ddc_clk_regs_dcn[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	ddc->shifts = &ddc_shift[en];
+	ddc->masks = &ddc_mask[en];
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+
+/* function table */
+static const struct hw_factory_funcs funcs = {
+	.init_ddc_data = dal_hw_ddc_init,
+	.init_generic = dal_hw_generic_init,
+	.init_hpd = dal_hw_hpd_init,
+	.get_ddc_pin = dal_hw_ddc_get_pin,
+	.get_hpd_pin = dal_hw_hpd_get_pin,
+	.get_generic_pin = dal_hw_generic_get_pin,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers,
+	.define_generic_registers = define_generic_registers
+};
+/*
+ * dal_hw_factory_dcn10_init
+ *
+ * @brief
+ * Initialize HW factory function pointers and pin info
+ *
+ * @param
+ * struct hw_factory *factory - [out] struct of function pointers
+ */
+void dal_hw_factory_dcn30_init(struct hw_factory *factory)
+{
+	/*TODO check ASIC CAPs*/
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
+	factory->number_of_pins[GPIO_ID_GENERIC] = 4;
+	factory->number_of_pins[GPIO_ID_HPD] = 6;
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 28;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 0;
+	factory->number_of_pins[GPIO_ID_GSL] = 0;/*add this*/
+
+	factory->funcs = &funcs;
+}
+

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn30/hw_factory_dcn30.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#ifndef __DAL_HW_FACTORY_DCN30_H__
+#define __DAL_HW_FACTORY_DCN30_H__
+
+/* Initialize HW factory function pointers and pin info */
+void dal_hw_factory_dcn30_init(struct hw_factory *factory);
+
+#endif /* __DAL_HW_FACTORY_DCN30_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn30/hw_translate_dcn30.c

@@ -0,0 +1,388 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+#include "hw_translate_dcn30.h"
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+
+#include "sienna_cichlid_ip_offset.h"
+#include "dcn/dcn_3_0_0_offset.h"
+#include "dcn/dcn_3_0_0_sh_mask.h"
+
+#include "nbio/nbio_7_4_offset.h"
+
+#include "dpcs/dpcs_3_0_0_offset.h"
+#include "dpcs/dpcs_3_0_0_sh_mask.h"
+
+#include "mmhub/mmhub_2_0_0_offset.h"
+#include "mmhub/mmhub_2_0_0_sh_mask.h"
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+#undef REG
+#define REG(reg_name)\
+		BASE(mm ## reg_name ## _BASE_IDX) + mm ## reg_name
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	switch (offset) {
+	/* GENERIC */
+	case REG(DC_GPIO_GENERIC_A):
+		*id = GPIO_ID_GENERIC;
+		switch (mask) {
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK:
+			*en = GPIO_GENERIC_A;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK:
+			*en = GPIO_GENERIC_B;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK:
+			*en = GPIO_GENERIC_C;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK:
+			*en = GPIO_GENERIC_D;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK:
+			*en = GPIO_GENERIC_E;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK:
+			*en = GPIO_GENERIC_F;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK:
+			*en = GPIO_GENERIC_G;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* HPD */
+	case REG(DC_GPIO_HPD_A):
+		*id = GPIO_ID_HPD;
+		switch (mask) {
+		case DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK:
+			*en = GPIO_HPD_1;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK:
+			*en = GPIO_HPD_2;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK:
+			*en = GPIO_HPD_3;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK:
+			*en = GPIO_HPD_4;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK:
+			*en = GPIO_HPD_5;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK:
+			*en = GPIO_HPD_6;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* REG(DC_GPIO_GENLK_MASK */
+	case REG(DC_GPIO_GENLK_A):
+		*id = GPIO_ID_GSL;
+		switch (mask) {
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK:
+			*en = GPIO_GSL_GENLOCK_CLOCK;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK:
+			*en = GPIO_GSL_GENLOCK_VSYNC;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_A;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_B;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* DDC */
+	/* we don't care about the GPIO_ID for DDC
+	 * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
+	 * directly in the create method
+	 */
+	case REG(DC_GPIO_DDC1_A):
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case REG(DC_GPIO_DDC2_A):
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case REG(DC_GPIO_DDC3_A):
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case REG(DC_GPIO_DDC4_A):
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case REG(DC_GPIO_DDC5_A):
+		*en = GPIO_DDC_LINE_DDC5;
+		return true;
+	case REG(DC_GPIO_DDC6_A):
+		*en = GPIO_DDC_LINE_DDC6;
+		return true;
+	case REG(DC_GPIO_DDCVGA_A):
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+
+/*
+ *	case REG(DC_GPIO_I2CPAD_A): not exit
+ *	case REG(DC_GPIO_PWRSEQ_A):
+ *	case REG(DC_GPIO_PAD_STRENGTH_1):
+ *	case REG(DC_GPIO_PAD_STRENGTH_2):
+ *	case REG(DC_GPIO_DEBUG):
+ */
+	/* UNEXPECTED */
+	default:
+/*	case REG(DC_GPIO_SYNCA_A): not exist */
+		ASSERT_CRITICAL(false);
+		return false;
+	}
+}
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6DATA_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = REG(DC_GPIO_DDC6_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6CLK_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = REG(DC_GPIO_DDC6_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GENERIC:
+		info->offset = REG(DC_GPIO_GENERIC_A);
+		switch (en) {
+		case GPIO_GENERIC_A:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK;
+		break;
+		case GPIO_GENERIC_B:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK;
+		break;
+		case GPIO_GENERIC_C:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK;
+		break;
+		case GPIO_GENERIC_D:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK;
+		break;
+		case GPIO_GENERIC_E:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK;
+		break;
+		case GPIO_GENERIC_F:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK;
+		break;
+		case GPIO_GENERIC_G:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_HPD:
+		info->offset = REG(DC_GPIO_HPD_A);
+		switch (en) {
+		case GPIO_HPD_1:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK;
+		break;
+		case GPIO_HPD_2:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK;
+		break;
+		case GPIO_HPD_3:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK;
+		break;
+		case GPIO_HPD_4:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK;
+		break;
+		case GPIO_HPD_5:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK;
+		break;
+		case GPIO_HPD_6:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+				/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_SWAPLOCK_A:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_SWAPLOCK_B:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_SYNC:
+	case GPIO_ID_VIP_PAD:
+	default:
+		ASSERT_CRITICAL(false);
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+/* function table */
+static const struct hw_translate_funcs funcs = {
+	.offset_to_id = offset_to_id,
+	.id_to_offset = id_to_offset,
+};
+
+/*
+ * dal_hw_translate_dcn30_init
+ *
+ * @brief
+ * Initialize Hw translate function pointers.
+ *
+ * @param
+ * struct hw_translate *tr - [out] struct of function pointers
+ *
+ */
+void dal_hw_translate_dcn30_init(struct hw_translate *tr)
+{
+	tr->funcs = &funcs;
+}
+

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn30/hw_translate_dcn30.h

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#ifndef __DAL_HW_TRANSLATE_DCN30_H__
+#define __DAL_HW_TRANSLATE_DCN30_H__
+
+struct hw_translate;
+
+/* Initialize Hw translate function pointers */
+void dal_hw_translate_dcn30_init(struct hw_translate *tr);
+
+#endif /* __DAL_HW_TRANSLATE_DCN30_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn315/hw_factory_dcn315.c

@@ -0,0 +1,260 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+#include "../hw_generic.h"
+
+#include "hw_factory_dcn315.h"
+
+#include "dcn/dcn_3_1_5_offset.h"
+#include "dcn/dcn_3_1_5_sh_mask.h"
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+#define DCN_BASE__INST0_SEG0                       0x00000012
+#define DCN_BASE__INST0_SEG1                       0x000000C0
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+#define DCN_BASE__INST0_SEG3                       0x00009000
+#define DCN_BASE__INST0_SEG4                       0x02403C00
+#define DCN_BASE__INST0_SEG5                       0
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+
+
+#define REG(reg_name)\
+		BASE(reg ## reg_name ## _BASE_IDX) + reg ## reg_name
+
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
+
+#define REGI(reg_name, block, id)\
+	BASE(reg ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+				reg ## block ## id ## _ ## reg_name
+
+#define SF(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+
+
+#define hpd_regs(id) \
+{\
+	HPD_REG_LIST(id)\
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(0),
+	hpd_regs(1),
+	hpd_regs(2),
+	hpd_regs(3),
+	hpd_regs(4),
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+		HPD_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+		HPD_MASK_SH_LIST(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+ /* set field name */
+#define SF_DDC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs_dcn[] = {
+	ddc_data_regs_dcn2(1),
+	ddc_data_regs_dcn2(2),
+	ddc_data_regs_dcn2(3),
+	ddc_data_regs_dcn2(4),
+	ddc_data_regs_dcn2(5),
+	{
+			DDC_GPIO_VGA_REG_LIST(DATA),
+			.ddc_setup = 0,
+			.phy_aux_cntl = 0,
+			.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+static const struct ddc_registers ddc_clk_regs_dcn[] = {
+	ddc_clk_regs_dcn2(1),
+	ddc_clk_regs_dcn2(2),
+	ddc_clk_regs_dcn2(3),
+	ddc_clk_regs_dcn2(4),
+	ddc_clk_regs_dcn2(5),
+	{
+			DDC_GPIO_VGA_REG_LIST(CLK),
+			.ddc_setup = 0,
+			.phy_aux_cntl = 0,
+			.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+static const struct ddc_sh_mask ddc_shift[] = {
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 1),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 2),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 3),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 4),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 5),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 6)
+};
+
+static const struct ddc_sh_mask ddc_mask[] = {
+	DDC_MASK_SH_LIST_DCN2(_MASK, 1),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 2),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 3),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 4),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 5),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 6)
+};
+
+#include "../generic_regs.h"
+
+/* set field name */
+#define SF_GENERIC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+#define generic_regs(id) \
+{\
+	GENERIC_REG_LIST(id)\
+}
+
+static const struct generic_registers generic_regs[] = {
+	generic_regs(A),
+	generic_regs(B),
+};
+
+static const struct generic_sh_mask generic_shift[] = {
+	GENERIC_MASK_SH_LIST(__SHIFT, A),
+	GENERIC_MASK_SH_LIST(__SHIFT, B),
+};
+
+static const struct generic_sh_mask generic_mask[] = {
+	GENERIC_MASK_SH_LIST(_MASK, A),
+	GENERIC_MASK_SH_LIST(_MASK, B),
+};
+
+static void define_generic_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_generic *generic = HW_GENERIC_FROM_BASE(pin);
+
+	generic->regs = &generic_regs[en];
+	generic->shifts = &generic_shift[en];
+	generic->masks = &generic_mask[en];
+	generic->base.regs = &generic_regs[en].gpio;
+}
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs_dcn[en];
+		ddc->base.regs = &ddc_data_regs_dcn[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs_dcn[en];
+		ddc->base.regs = &ddc_clk_regs_dcn[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	ddc->shifts = &ddc_shift[en];
+	ddc->masks = &ddc_mask[en];
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+
+/* fucntion table */
+static const struct hw_factory_funcs funcs = {
+	.init_ddc_data = dal_hw_ddc_init,
+	.init_generic = dal_hw_generic_init,
+	.init_hpd = dal_hw_hpd_init,
+	.get_ddc_pin = dal_hw_ddc_get_pin,
+	.get_hpd_pin = dal_hw_hpd_get_pin,
+	.get_generic_pin = dal_hw_generic_get_pin,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers,
+	.define_generic_registers = define_generic_registers
+};
+/*
+ * dal_hw_factory_dcn10_init
+ *
+ * @brief
+ * Initialize HW factory function pointers and pin info
+ *
+ * @param
+ * struct hw_factory *factory - [out] struct of function pointers
+ */
+void dal_hw_factory_dcn315_init(struct hw_factory *factory)
+{
+	/*TODO check ASIC CAPs*/
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
+	factory->number_of_pins[GPIO_ID_GENERIC] = 4;
+	factory->number_of_pins[GPIO_ID_HPD] = 6;
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 28;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 0;
+	factory->number_of_pins[GPIO_ID_GSL] = 0;/*add this*/
+
+	factory->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn315/hw_factory_dcn315.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#ifndef __DAL_HW_FACTORY_DCN315_H__
+#define __DAL_HW_FACTORY_DCN315_H__
+
+/* Initialize HW factory function pointers and pin info */
+void dal_hw_factory_dcn315_init(struct hw_factory *factory);
+
+#endif /* __DAL_HW_FACTORY_DCN315_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn315/hw_translate_dcn315.c

@@ -0,0 +1,374 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "hw_translate_dcn315.h"
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+#include "dcn/dcn_3_1_5_offset.h"
+#include "dcn/dcn_3_1_5_sh_mask.h"
+
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+#define DCN_BASE__INST0_SEG0                       0x00000012
+#define DCN_BASE__INST0_SEG1                       0x000000C0
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+#define DCN_BASE__INST0_SEG3                       0x00009000
+#define DCN_BASE__INST0_SEG4                       0x02403C00
+#define DCN_BASE__INST0_SEG5                       0
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+#undef REG
+#define REG(reg_name)\
+		BASE(reg ## reg_name ## _BASE_IDX) + reg ## reg_name
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	switch (offset) {
+	/* GENERIC */
+	case REG(DC_GPIO_GENERIC_A):
+		*id = GPIO_ID_GENERIC;
+		switch (mask) {
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK:
+			*en = GPIO_GENERIC_A;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK:
+			*en = GPIO_GENERIC_B;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK:
+			*en = GPIO_GENERIC_C;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK:
+			*en = GPIO_GENERIC_D;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK:
+			*en = GPIO_GENERIC_E;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK:
+			*en = GPIO_GENERIC_F;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK:
+			*en = GPIO_GENERIC_G;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* HPD */
+	case REG(DC_GPIO_HPD_A):
+		*id = GPIO_ID_HPD;
+		switch (mask) {
+		case DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK:
+			*en = GPIO_HPD_1;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK:
+			*en = GPIO_HPD_2;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK:
+			*en = GPIO_HPD_3;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK:
+			*en = GPIO_HPD_4;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK:
+			*en = GPIO_HPD_5;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK:
+			*en = GPIO_HPD_6;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* REG(DC_GPIO_GENLK_MASK */
+	case REG(DC_GPIO_GENLK_A):
+		*id = GPIO_ID_GSL;
+		switch (mask) {
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK:
+			*en = GPIO_GSL_GENLOCK_CLOCK;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK:
+			*en = GPIO_GSL_GENLOCK_VSYNC;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_A;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_B;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* DDC */
+	/* we don't care about the GPIO_ID for DDC
+	 * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
+	 * directly in the create method
+	 */
+	case REG(DC_GPIO_DDC1_A):
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case REG(DC_GPIO_DDC2_A):
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case REG(DC_GPIO_DDC3_A):
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case REG(DC_GPIO_DDC4_A):
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case REG(DC_GPIO_DDC5_A):
+		*en = GPIO_DDC_LINE_DDC5;
+		return true;
+	case REG(DC_GPIO_DDCVGA_A):
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+
+/*
+ *	case REG(DC_GPIO_I2CPAD_A): not exit
+ *	case REG(DC_GPIO_PWRSEQ_A):
+ *	case REG(DC_GPIO_PAD_STRENGTH_1):
+ *	case REG(DC_GPIO_PAD_STRENGTH_2):
+ *	case REG(DC_GPIO_DEBUG):
+ */
+	/* UNEXPECTED */
+	default:
+/*	case REG(DC_GPIO_SYNCA_A): not exist */
+		ASSERT_CRITICAL(false);
+		return false;
+	}
+}
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDC1_A__DC_GPIO_DDC1DATA_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDC1_A__DC_GPIO_DDC1CLK_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GENERIC:
+		info->offset = REG(DC_GPIO_GENERIC_A);
+		switch (en) {
+		case GPIO_GENERIC_A:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK;
+		break;
+		case GPIO_GENERIC_B:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK;
+		break;
+		case GPIO_GENERIC_C:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK;
+		break;
+		case GPIO_GENERIC_D:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK;
+		break;
+		case GPIO_GENERIC_E:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK;
+		break;
+		case GPIO_GENERIC_F:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK;
+		break;
+		case GPIO_GENERIC_G:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_HPD:
+		info->offset = REG(DC_GPIO_HPD_A);
+		switch (en) {
+		case GPIO_HPD_1:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK;
+		break;
+		case GPIO_HPD_2:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK;
+		break;
+		case GPIO_HPD_3:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK;
+		break;
+		case GPIO_HPD_4:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK;
+		break;
+		case GPIO_HPD_5:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK;
+		break;
+		case GPIO_HPD_6:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+				/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_SWAPLOCK_A:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_SWAPLOCK_B:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_SYNC:
+	case GPIO_ID_VIP_PAD:
+	default:
+		ASSERT_CRITICAL(false);
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+/* function table */
+static const struct hw_translate_funcs funcs = {
+	.offset_to_id = offset_to_id,
+	.id_to_offset = id_to_offset,
+};
+
+/*
+ * dal_hw_translate_dcn30_init
+ *
+ * @brief
+ * Initialize Hw translate function pointers.
+ *
+ * @param
+ * struct hw_translate *tr - [out] struct of function pointers
+ *
+ */
+void dal_hw_translate_dcn315_init(struct hw_translate *tr)
+{
+	tr->funcs = &funcs;
+}
+

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn315/hw_translate_dcn315.h

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#ifndef __DAL_HW_TRANSLATE_DCN315_H__
+#define __DAL_HW_TRANSLATE_DCN315_H__
+
+struct hw_translate;
+
+/* Initialize Hw translate function pointers */
+void dal_hw_translate_dcn315_init(struct hw_translate *tr);
+
+#endif /* __DAL_HW_TRANSLATE_DCN315_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn32/hw_factory_dcn32.c

@@ -0,0 +1,271 @@
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+#include "../hw_generic.h"
+
+#include "hw_factory_dcn32.h"
+
+#include "dcn/dcn_3_2_0_offset.h"
+#include "dcn/dcn_3_2_0_sh_mask.h"
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+
+
+#define REG(reg_name)\
+		BASE(reg ## reg_name ## _BASE_IDX) + reg ## reg_name
+
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
+
+#define REGI(reg_name, block, id)\
+	BASE(reg ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+				reg ## block ## id ## _ ## reg_name
+
+#define SF(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+
+
+#define hpd_regs(id) \
+{\
+	HPD_REG_LIST(id)\
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(0),
+	hpd_regs(1),
+	hpd_regs(2),
+	hpd_regs(3),
+	hpd_regs(4),
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+		HPD_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+		HPD_MASK_SH_LIST(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+ /* set field name */
+#define SF_DDC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs_dcn[] = {
+	ddc_data_regs_dcn2(1),
+	ddc_data_regs_dcn2(2),
+	ddc_data_regs_dcn2(3),
+	ddc_data_regs_dcn2(4),
+	ddc_data_regs_dcn2(5),
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+			DDC_GPIO_VGA_REG_LIST(DATA),
+			.ddc_setup = 0,
+			.phy_aux_cntl = 0,
+			.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+static const struct ddc_registers ddc_clk_regs_dcn[] = {
+	ddc_clk_regs_dcn2(1),
+	ddc_clk_regs_dcn2(2),
+	ddc_clk_regs_dcn2(3),
+	ddc_clk_regs_dcn2(4),
+	ddc_clk_regs_dcn2(5),
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+			DDC_GPIO_VGA_REG_LIST(CLK),
+			.ddc_setup = 0,
+			.phy_aux_cntl = 0,
+			.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+static const struct ddc_sh_mask ddc_shift[] = {
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 1),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 2),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 3),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 4),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 5),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 6),
+	DDC_MASK_SH_LIST_DCN2_VGA(__SHIFT)
+};
+
+static const struct ddc_sh_mask ddc_mask[] = {
+	DDC_MASK_SH_LIST_DCN2(_MASK, 1),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 2),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 3),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 4),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 5),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 6),
+	DDC_MASK_SH_LIST_DCN2_VGA(_MASK)
+};
+
+#include "../generic_regs.h"
+
+/* set field name */
+#define SF_GENERIC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+#define generic_regs(id) \
+{\
+	GENERIC_REG_LIST(id)\
+}
+
+static const struct generic_registers generic_regs[] = {
+	generic_regs(A),
+	generic_regs(B),
+};
+
+static const struct generic_sh_mask generic_shift[] = {
+	GENERIC_MASK_SH_LIST(__SHIFT, A),
+	GENERIC_MASK_SH_LIST(__SHIFT, B),
+};
+
+static const struct generic_sh_mask generic_mask[] = {
+	GENERIC_MASK_SH_LIST(_MASK, A),
+	GENERIC_MASK_SH_LIST(_MASK, B),
+};
+
+static void define_generic_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_generic *generic = HW_GENERIC_FROM_BASE(pin);
+
+	generic->regs = &generic_regs[en];
+	generic->shifts = &generic_shift[en];
+	generic->masks = &generic_mask[en];
+	generic->base.regs = &generic_regs[en].gpio;
+}
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs_dcn[en];
+		ddc->base.regs = &ddc_data_regs_dcn[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs_dcn[en];
+		ddc->base.regs = &ddc_clk_regs_dcn[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	ddc->shifts = &ddc_shift[en];
+	ddc->masks = &ddc_mask[en];
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+
+/* fucntion table */
+static const struct hw_factory_funcs funcs = {
+	.init_ddc_data = dal_hw_ddc_init,
+	.init_generic = dal_hw_generic_init,
+	.init_hpd = dal_hw_hpd_init,
+	.get_ddc_pin = dal_hw_ddc_get_pin,
+	.get_hpd_pin = dal_hw_hpd_get_pin,
+	.get_generic_pin = dal_hw_generic_get_pin,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers,
+	.define_generic_registers = define_generic_registers
+};
+/*
+ * dal_hw_factory_dcn32_init
+ *
+ * @brief
+ * Initialize HW factory function pointers and pin info
+ *
+ * @param
+ * struct hw_factory *factory - [out] struct of function pointers
+ */
+void dal_hw_factory_dcn32_init(struct hw_factory *factory)
+{
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
+	factory->number_of_pins[GPIO_ID_GENERIC] = 4;
+	factory->number_of_pins[GPIO_ID_HPD] = 5;
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 28;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 0;
+	factory->number_of_pins[GPIO_ID_GSL] = 0;/*add this*/
+
+	factory->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn32/hw_factory_dcn32.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#ifndef __DAL_HW_FACTORY_DCN32_H__
+#define __DAL_HW_FACTORY_DCN32_H__
+
+/* Initialize HW factory function pointers and pin info */
+void dal_hw_factory_dcn32_init(struct hw_factory *factory);
+
+#endif /* __DAL_HW_FACTORY_DCN32_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn32/hw_translate_dcn32.c

@@ -0,0 +1,349 @@
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+#include "hw_translate_dcn32.h"
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+#include "dcn/dcn_3_2_0_offset.h"
+#include "dcn/dcn_3_2_0_sh_mask.h"
+
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+#undef REG
+#define REG(reg_name)\
+		BASE(reg ## reg_name ## _BASE_IDX) + reg ## reg_name
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	switch (offset) {
+	/* GENERIC */
+	case REG(DC_GPIO_GENERIC_A):
+		*id = GPIO_ID_GENERIC;
+		switch (mask) {
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK:
+			*en = GPIO_GENERIC_A;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK:
+			*en = GPIO_GENERIC_B;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK:
+			*en = GPIO_GENERIC_C;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK:
+			*en = GPIO_GENERIC_D;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK:
+			*en = GPIO_GENERIC_E;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK:
+			*en = GPIO_GENERIC_F;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* HPD */
+	case REG(DC_GPIO_HPD_A):
+		*id = GPIO_ID_HPD;
+		switch (mask) {
+		case DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK:
+			*en = GPIO_HPD_1;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK:
+			*en = GPIO_HPD_2;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK:
+			*en = GPIO_HPD_3;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK:
+			*en = GPIO_HPD_4;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK:
+			*en = GPIO_HPD_5;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* REG(DC_GPIO_GENLK_MASK */
+	case REG(DC_GPIO_GENLK_A):
+		*id = GPIO_ID_GSL;
+		switch (mask) {
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK:
+			*en = GPIO_GSL_GENLOCK_CLOCK;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK:
+			*en = GPIO_GSL_GENLOCK_VSYNC;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_A;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_B;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* DDC */
+	/* we don't care about the GPIO_ID for DDC
+	 * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
+	 * directly in the create method */
+	case REG(DC_GPIO_DDC1_A):
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case REG(DC_GPIO_DDC2_A):
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case REG(DC_GPIO_DDC3_A):
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case REG(DC_GPIO_DDC4_A):
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case REG(DC_GPIO_DDC5_A):
+		*en = GPIO_DDC_LINE_DDC5;
+		return true;
+	case REG(DC_GPIO_DDCVGA_A):
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+	default:
+		ASSERT_CRITICAL(false);
+		return false;
+	}
+}
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDC1_A__DC_GPIO_DDC1DATA_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDC1_A__DC_GPIO_DDC1CLK_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GENERIC:
+		info->offset = REG(DC_GPIO_GENERIC_A);
+		switch (en) {
+		case GPIO_GENERIC_A:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK;
+		break;
+		case GPIO_GENERIC_B:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK;
+		break;
+		case GPIO_GENERIC_C:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK;
+		break;
+		case GPIO_GENERIC_D:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK;
+		break;
+		case GPIO_GENERIC_E:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK;
+		break;
+		case GPIO_GENERIC_F:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_HPD:
+		info->offset = REG(DC_GPIO_HPD_A);
+		switch (en) {
+		case GPIO_HPD_1:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK;
+		break;
+		case GPIO_HPD_2:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK;
+		break;
+		case GPIO_HPD_3:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK;
+		break;
+		case GPIO_HPD_4:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK;
+		break;
+		case GPIO_HPD_5:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+				/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_SWAPLOCK_A:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_SWAPLOCK_B:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_SYNC:
+	case GPIO_ID_VIP_PAD:
+	default:
+		ASSERT_CRITICAL(false);
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+/* function table */
+static const struct hw_translate_funcs funcs = {
+	.offset_to_id = offset_to_id,
+	.id_to_offset = id_to_offset,
+};
+
+/*
+ * dal_hw_translate_dcn32_init
+ *
+ * @brief
+ * Initialize Hw translate function pointers.
+ *
+ * @param
+ * struct hw_translate *tr - [out] struct of function pointers
+ *
+ */
+void dal_hw_translate_dcn32_init(struct hw_translate *tr)
+{
+	tr->funcs = &funcs;
+}
+

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn32/hw_translate_dcn32.h

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+#ifndef __DAL_HW_TRANSLATE_DCN32_H__
+#define __DAL_HW_TRANSLATE_DCN32_H__
+
+struct hw_translate;
+
+/* Initialize Hw translate function pointers */
+void dal_hw_translate_dcn32_init(struct hw_translate *tr);
+
+#endif /* __DAL_HW_TRANSLATE_DCN32_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn401/hw_factory_dcn401.c

@@ -0,0 +1,264 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2024 Advanced Micro Devices, Inc.
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+#include "../hw_generic.h"
+
+
+#include "dcn/dcn_4_1_0_offset.h"
+#include "dcn/dcn_4_1_0_sh_mask.h"
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+#include "hw_factory_dcn401.h"
+
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+
+
+#define REG(reg_name)\
+		BASE(reg ## reg_name ## _BASE_IDX) + reg ## reg_name
+
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
+
+#define REGI(reg_name, block, id)\
+	BASE(reg ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+				reg ## block ## id ## _ ## reg_name
+
+#define SF(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+
+
+#define hpd_regs(id) \
+{\
+	HPD_REG_LIST(id)\
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(0),
+	hpd_regs(1),
+	hpd_regs(2),
+	hpd_regs(3),
+//	hpd_regs(4),
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+		HPD_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+		HPD_MASK_SH_LIST(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+ /* set field name */
+#define SF_DDC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs_dcn[] = {
+	ddc_data_regs_dcn2(1),
+	ddc_data_regs_dcn2(2),
+	ddc_data_regs_dcn2(3),
+	ddc_data_regs_dcn2(4),
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+			DDC_GPIO_VGA_REG_LIST(DATA),
+			.ddc_setup = 0,
+			.phy_aux_cntl = 0,
+			.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+static const struct ddc_registers ddc_clk_regs_dcn[] = {
+	ddc_clk_regs_dcn2(1),
+	ddc_clk_regs_dcn2(2),
+	ddc_clk_regs_dcn2(3),
+	ddc_clk_regs_dcn2(4),
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+			DDC_GPIO_VGA_REG_LIST(CLK),
+			.ddc_setup = 0,
+			.phy_aux_cntl = 0,
+			.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+static const struct ddc_sh_mask ddc_shift[] = {
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 1),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 2),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 3),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 4),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 5),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 6),
+	DDC_MASK_SH_LIST_DCN2_VGA(__SHIFT)
+};
+
+static const struct ddc_sh_mask ddc_mask[] = {
+	DDC_MASK_SH_LIST_DCN2(_MASK, 1),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 2),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 3),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 4),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 5),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 6),
+	DDC_MASK_SH_LIST_DCN2_VGA(_MASK)
+};
+
+#include "../generic_regs.h"
+
+/* set field name */
+#define SF_GENERIC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+#define generic_regs(id) \
+{\
+	GENERIC_REG_LIST(id)\
+}
+
+static const struct generic_registers generic_regs[] = {
+	generic_regs(A),
+	generic_regs(B),
+};
+
+static const struct generic_sh_mask generic_shift[] = {
+	GENERIC_MASK_SH_LIST(__SHIFT, A),
+	GENERIC_MASK_SH_LIST(__SHIFT, B),
+};
+
+static const struct generic_sh_mask generic_mask[] = {
+	GENERIC_MASK_SH_LIST(_MASK, A),
+	GENERIC_MASK_SH_LIST(_MASK, B),
+};
+
+static void define_generic_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_generic *generic = HW_GENERIC_FROM_BASE(pin);
+
+	generic->regs = &generic_regs[en];
+	generic->shifts = &generic_shift[en];
+	generic->masks = &generic_mask[en];
+	generic->base.regs = &generic_regs[en].gpio;
+}
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs_dcn[en];
+		ddc->base.regs = &ddc_data_regs_dcn[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs_dcn[en];
+		ddc->base.regs = &ddc_clk_regs_dcn[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	ddc->shifts = &ddc_shift[en];
+	ddc->masks = &ddc_mask[en];
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+
+/* function table */
+static const struct hw_factory_funcs funcs = {
+	.init_ddc_data = dal_hw_ddc_init,
+	.init_generic = dal_hw_generic_init,
+	.init_hpd = dal_hw_hpd_init,
+	.get_ddc_pin = dal_hw_ddc_get_pin,
+	.get_hpd_pin = dal_hw_hpd_get_pin,
+	.get_generic_pin = dal_hw_generic_get_pin,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers,
+	.define_generic_registers = define_generic_registers
+};
+
+/*
+ * dal_hw_factory_dcn401_init
+ *
+ * @brief
+ * Initialize HW factory function pointers and pin info
+ *
+ * @param
+ * struct hw_factory *factory - [out] struct of function pointers
+ */
+void dal_hw_factory_dcn401_init(struct hw_factory *factory)
+{
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
+	factory->number_of_pins[GPIO_ID_GENERIC] = 4;
+	factory->number_of_pins[GPIO_ID_HPD] = 5;
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 28;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 0;
+	factory->number_of_pins[GPIO_ID_GSL] = 0;/*add this*/
+
+	factory->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn401/hw_factory_dcn401.h

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2024 Advanced Micro Devices, Inc.
+
+#ifndef __DAL_HW_FACTORY_DCN401_H__
+#define __DAL_HW_FACTORY_DCN401_H__
+
+/* Initialize HW factory function pointers and pin info */
+void dal_hw_factory_dcn401_init(struct hw_factory *factory);
+
+#endif /* __DAL_HW_FACTORY_DCN401_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn401/hw_translate_dcn401.c

@@ -0,0 +1,335 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2024 Advanced Micro Devices, Inc.
+
+#include "hw_translate_dcn401.h"
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+#include "dcn/dcn_4_1_0_offset.h"
+#include "dcn/dcn_4_1_0_sh_mask.h"
+
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+#undef REG
+#define REG(reg_name)\
+		BASE(reg ## reg_name ## _BASE_IDX) + reg ## reg_name
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	switch (offset) {
+	/* GENERIC */
+	case REG(DC_GPIO_GENERIC_A):
+		*id = GPIO_ID_GENERIC;
+		switch (mask) {
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK:
+			*en = GPIO_GENERIC_A;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK:
+			*en = GPIO_GENERIC_B;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK:
+			*en = GPIO_GENERIC_C;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK:
+			*en = GPIO_GENERIC_D;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK:
+			*en = GPIO_GENERIC_E;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK:
+			*en = GPIO_GENERIC_F;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* HPD */
+	case REG(DC_GPIO_HPD_A):
+		*id = GPIO_ID_HPD;
+		switch (mask) {
+		case DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK:
+			*en = GPIO_HPD_1;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK:
+			*en = GPIO_HPD_2;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK:
+			*en = GPIO_HPD_3;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK:
+			*en = GPIO_HPD_4;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK:
+			*en = GPIO_HPD_5;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* REG(DC_GPIO_GENLK_MASK */
+	case REG(DC_GPIO_GENLK_A):
+		*id = GPIO_ID_GSL;
+		switch (mask) {
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK:
+			*en = GPIO_GSL_GENLOCK_CLOCK;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK:
+			*en = GPIO_GSL_GENLOCK_VSYNC;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_A;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_B;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* DDC */
+	/* we don't care about the GPIO_ID for DDC
+	 * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
+	 * directly in the create method
+	 */
+	case REG(DC_GPIO_DDC1_A):
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case REG(DC_GPIO_DDC2_A):
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case REG(DC_GPIO_DDC3_A):
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case REG(DC_GPIO_DDC4_A):
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case REG(DC_GPIO_DDCVGA_A):
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+
+/*
+ *	case REG(DC_GPIO_I2CPAD_A): not exit
+ *	case REG(DC_GPIO_PWRSEQ_A):
+ *	case REG(DC_GPIO_PAD_STRENGTH_1):
+ *	case REG(DC_GPIO_PAD_STRENGTH_2):
+ *	case REG(DC_GPIO_DEBUG):
+ */
+	/* UNEXPECTED */
+	default:
+/*	case REG(DC_GPIO_SYNCA_A): not exist */
+		ASSERT_CRITICAL(false);
+		return false;
+	}
+}
+
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDC1_A__DC_GPIO_DDC1DATA_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+/*		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break; */
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDC1_A__DC_GPIO_DDC1CLK_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+/*		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break; */
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GENERIC:
+		info->offset = REG(DC_GPIO_GENERIC_A);
+		switch (en) {
+		case GPIO_GENERIC_A:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK;
+		break;
+		case GPIO_GENERIC_B:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK;
+		break;
+		case GPIO_GENERIC_C:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK;
+		break;
+		case GPIO_GENERIC_D:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK;
+		break;
+		case GPIO_GENERIC_E:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK;
+		break;
+		case GPIO_GENERIC_F:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_HPD:
+		info->offset = REG(DC_GPIO_HPD_A);
+		switch (en) {
+		case GPIO_HPD_1:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK;
+		break;
+		case GPIO_HPD_2:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK;
+		break;
+		case GPIO_HPD_3:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK;
+		break;
+		case GPIO_HPD_4:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK;
+		break;
+		case GPIO_HPD_5:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+				/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_SWAPLOCK_A:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+		break;
+		case GPIO_GSL_SWAPLOCK_B:
+			/*not implmented*/
+			ASSERT_CRITICAL(false);
+			result = false;
+
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_SYNC:
+	case GPIO_ID_VIP_PAD:
+	default:
+		ASSERT_CRITICAL(false);
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+
+/* function table */
+static const struct hw_translate_funcs funcs = {
+	.offset_to_id = offset_to_id,
+	.id_to_offset = id_to_offset,
+};
+
+
+/*
+ * dal_hw_translate_dcn401_init
+ *
+ * @brief
+ * Initialize Hw translate function pointers.
+ *
+ * @param
+ * struct hw_translate *tr - [out] struct of function pointers
+ *
+ */
+void dal_hw_translate_dcn401_init(struct hw_translate *tr)
+{
+	tr->funcs = &funcs;
+}
+

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn401/hw_translate_dcn401.h

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2024 Advanced Micro Devices, Inc.
+
+#ifndef __DAL_HW_TRANSLATE_DCN401_H__
+#define __DAL_HW_TRANSLATE_DCN401_H__
+
+struct hw_translate;
+
+/* Initialize Hw translate function pointers */
+void dal_hw_translate_dcn401_init(struct hw_translate *tr);
+
+#endif /* __DAL_HW_TRANSLATE_DCN401_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn42/hw_factory_dcn42.c

@@ -0,0 +1,254 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2026 Advanced Micro Devices, Inc.
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+#include "../hw_generic.h"
+
+
+
+#include "dcn/dcn_4_2_0_offset.h"
+#include "dcn/dcn_4_2_0_sh_mask.h"
+#include "dpcs/dpcs_4_0_0_offset.h"
+#include "dpcs/dpcs_4_0_0_sh_mask.h"
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+#include "hw_factory_dcn42.h"
+
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+
+
+#define REG(reg_name)\
+		(BASE(reg ## reg_name ## _BASE_IDX) + reg ## reg_name)
+
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
+
+#define REGI(reg_name, block, id)\
+	(BASE(reg ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+				reg ## block ## id ## _ ## reg_name)
+
+#define SF(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+// DC_GPIO_HPD_* registers are gone.
+#undef HPD_REG_LIST
+#define HPD_REG_LIST(id) \
+	.int_status = REGI(DC_HPD_INT_STATUS, HPD, id),\
+	.toggle_filt_cntl = REGI(DC_HPD_TOGGLE_FILT_CNTL, HPD, id)
+
+#define hpd_regs(id) \
+{\
+	HPD_REG_LIST(id)\
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(0),
+	hpd_regs(1),
+	hpd_regs(2),
+	hpd_regs(3),
+	hpd_regs(4),
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+		HPD_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+		HPD_MASK_SH_LIST(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+ /* set field name */
+#define SF_DDC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs_dcn[] = {
+	ddc_data_regs_dcn2(1),
+	ddc_data_regs_dcn2(2),
+	ddc_data_regs_dcn2(3),
+	ddc_data_regs_dcn2(4),
+	ddc_data_regs_dcn2(5),
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+			DDC_GPIO_VGA_REG_LIST(DATA),
+			.ddc_setup = 0,
+			.phy_aux_cntl = 0,
+			.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+static const struct ddc_registers ddc_clk_regs_dcn[] = {
+	ddc_clk_regs_dcn2(1),
+	ddc_clk_regs_dcn2(2),
+	ddc_clk_regs_dcn2(3),
+	ddc_clk_regs_dcn2(4),
+	ddc_clk_regs_dcn2(5),
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+			DDC_GPIO_VGA_REG_LIST(CLK),
+			.ddc_setup = 0,
+			.phy_aux_cntl = 0,
+			.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+static const struct ddc_sh_mask ddc_shift[] = {
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 1),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 2),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 3),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 4),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 5),
+	DDC_MASK_SH_LIST_DCN2(__SHIFT, 6),
+	DDC_MASK_SH_LIST_DCN2_VGA(__SHIFT)
+};
+
+static const struct ddc_sh_mask ddc_mask[] = {
+	DDC_MASK_SH_LIST_DCN2(_MASK, 1),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 2),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 3),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 4),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 5),
+	DDC_MASK_SH_LIST_DCN2(_MASK, 6),
+	DDC_MASK_SH_LIST_DCN2_VGA(_MASK)
+};
+
+#include "../generic_regs.h"
+
+/* set field name */
+#define SF_GENERIC(reg_name, field_name, post_fix)\
+	.field_name = 0
+
+static const struct generic_registers generic_regs[] = {
+	{{ 0 }},
+	{{ 0 }},
+};
+
+static const struct generic_sh_mask generic_shift[] = {
+	{ 0 },
+	{ 0 },
+};
+
+static const struct generic_sh_mask generic_mask[] = {
+	{ 0 },
+	{ 0 },
+};
+
+static void define_generic_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_generic *generic = HW_GENERIC_FROM_BASE(pin);
+
+	generic->regs = &generic_regs[en];
+	generic->shifts = &generic_shift[en];
+	generic->masks = &generic_mask[en];
+	generic->base.regs = &generic_regs[en].gpio;
+}
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs_dcn[en];
+		ddc->base.regs = &ddc_data_regs_dcn[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs_dcn[en];
+		ddc->base.regs = &ddc_clk_regs_dcn[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	ddc->shifts = &ddc_shift[en];
+	ddc->masks = &ddc_mask[en];
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+
+/* function table */
+static const struct hw_factory_funcs funcs = {
+	.init_ddc_data = dal_hw_ddc_init,
+	.init_generic = dal_hw_generic_init,
+	.init_hpd = dal_hw_hpd_init,
+	.get_ddc_pin = dal_hw_ddc_get_pin,
+	.get_hpd_pin = dal_hw_hpd_get_pin,
+	.get_generic_pin = dal_hw_generic_get_pin,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers,
+	.define_generic_registers = define_generic_registers
+};
+
+/*
+ * dal_hw_factory_dcn42_init
+ *
+ * @brief
+ * Initialize HW factory function pointers and pin info
+ *
+ * @param
+ * struct hw_factory *factory - [out] struct of function pointers
+ */
+void dal_hw_factory_dcn42_init(struct hw_factory *factory)
+{
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
+	factory->number_of_pins[GPIO_ID_GENERIC] = 4;
+	factory->number_of_pins[GPIO_ID_HPD] = 5;
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 28;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 0;
+	factory->number_of_pins[GPIO_ID_GSL] = 0;/*add this*/
+
+	factory->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn42/hw_factory_dcn42.h

@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2026 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __DAL_HW_FACTORY_DCN42_H__
+#define __DAL_HW_FACTORY_DCN42_H__
+
+/* Initialize HW factory function pointers and pin info */
+void dal_hw_factory_dcn42_init(struct hw_factory *factory);
+
+#endif /* __DAL_HW_FACTORY_DCN42_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn42/hw_translate_dcn42.c

@@ -0,0 +1,206 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2026 Advanced Micro Devices, Inc.
+
+#include "hw_translate_dcn42.h"
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+
+#include "dcn/dcn_4_2_0_offset.h"
+#include "dcn/dcn_4_2_0_sh_mask.h"
+#include "dpcs/dpcs_4_0_0_offset.h"
+#include "dpcs/dpcs_4_0_0_sh_mask.h"
+
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+#undef REG
+#define REG(reg_name)\
+		(BASE(reg ## reg_name ## _BASE_IDX) + reg ## reg_name)
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	(void)mask;
+	switch (offset) {
+	/* HPD */
+	case REG(HPD0_DC_HPD_INT_STATUS):
+		*id = GPIO_ID_HPD;
+		*en = GPIO_HPD_1;
+		return true;
+	case REG(HPD1_DC_HPD_INT_STATUS):
+		*id = GPIO_ID_HPD;
+		*en = GPIO_HPD_2;
+		return true;
+	case REG(HPD2_DC_HPD_INT_STATUS):
+		*id = GPIO_ID_HPD;
+		*en = GPIO_HPD_3;
+		return true;
+	case REG(HPD3_DC_HPD_INT_STATUS):
+		*id = GPIO_ID_HPD;
+		*en = GPIO_HPD_4;
+		return true;
+	case REG(HPD4_DC_HPD_INT_STATUS):
+		*id = GPIO_ID_HPD;
+		*en = GPIO_HPD_5;
+		return true;
+	/* DDC */
+	/* we don't care about the GPIO_ID for DDC
+	 * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
+	 * directly in the create method
+	 */
+	case REG(DC_GPIO_DDC1_A):
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case REG(DC_GPIO_DDC2_A):
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case REG(DC_GPIO_DDC3_A):
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case REG(DC_GPIO_DDC4_A):
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case REG(DC_GPIO_DDC5_A):
+		*en = GPIO_DDC_LINE_DDC5;
+		return true;
+	case REG(DC_GPIO_DDCVGA_A):
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+	default:
+		ASSERT_CRITICAL(false);
+		return false;
+	}
+}
+
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDC1_A__DC_GPIO_DDC1DATA_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDC1_A__DC_GPIO_DDC1CLK_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_SYNC:
+	case GPIO_ID_VIP_PAD:
+	default:
+		ASSERT_CRITICAL(false);
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+
+/* function table */
+static const struct hw_translate_funcs funcs = {
+	.offset_to_id = offset_to_id,
+	.id_to_offset = id_to_offset,
+};
+
+
+/*
+ * dal_hw_translate_dcn42_init
+ *
+ * @brief
+ * Initialize Hw translate function pointers.
+ *
+ * @param
+ * struct hw_translate *tr - [out] struct of function pointers
+ *
+ */
+void dal_hw_translate_dcn42_init(struct hw_translate *tr)
+{
+	tr->funcs = &funcs;
+}
+
+

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn42/hw_translate_dcn42.h

@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2026 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __DAL_HW_TRANSLATE_DCN42_H__
+#define __DAL_HW_TRANSLATE_DCN42_H__
+
+struct hw_translate;
+
+/* Initialize Hw translate function pointers */
+void dal_hw_translate_dcn42_init(struct hw_translate *tr);
+#ifdef DAL_EMULATION_SUPPORTED
+void dal_emulated_hw_translate_dcn42_init(struct hw_translate *tr);
+#endif
+
+#endif /* __DAL_HW_TRANSLATE_DCN42_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn42b/hw_factory_dcn42b.c

@@ -0,0 +1,313 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2026 Advanced Micro Devices, Inc.
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+#include "../hw_generic.h"
+
+#include "dcn/dcn_4_2_1_offset.h"
+#include "dcn/dcn_4_2_1_sh_mask.h"
+#include "dpcs/dpcs_4_0_1_offset.h"
+#include "dpcs/dpcs_4_0_1_sh_mask.h"
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+#include "hw_factory_dcn42b.h"
+
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+
+/* DCN */
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+#define REG(reg_name) \
+	BASE(reg ## reg_name ## _BASE_IDX) + reg ## reg_name
+
+#define SF_HPD(reg_name, field_name, post_fix) \
+	.field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
+
+#define REGI(reg_name, block, id) \
+	BASE(reg ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+			reg ## block ## id ## _ ## reg_name
+
+#define SF(reg_name, field_name, post_fix) \
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+#undef HPD_REG_LIST
+#define HPD_REG_LIST(id) \
+	.int_status = REGI(DC_HPD_INT_STATUS, HPD, id), \
+	.toggle_filt_cntl = REGI(DC_HPD_TOGGLE_FILT_CNTL, HPD, id)
+
+#define hpd_regs(id) \
+{ \
+	HPD_REG_LIST(id) \
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(0),
+	hpd_regs(1),
+	hpd_regs(2),
+    //hpd_regs(3),
+    //hpd_regs(4),
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+	HPD_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+	HPD_MASK_SH_LIST(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+#define SF_DDC(reg_name, field_name, post_fix) \
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs_dcn[] = {
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		DDC_GPIO_VGA_REG_LIST(DATA),
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+static const struct ddc_registers ddc_clk_regs_dcn[] = {
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		// add a dummy entry for cases no such port
+		{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	},
+	{
+		DDC_GPIO_VGA_REG_LIST(CLK),
+		.ddc_setup = 0,
+		.phy_aux_cntl = 0,
+		.dc_gpio_aux_ctrl_5 = 0
+	}
+};
+
+//static const struct ddc_sh_mask ddc_shift[] = {
+	//DDC_MASK_SH_LIST_DCN2(__SHIFT, 1),
+	//DDC_MASK_SH_LIST_DCN2(__SHIFT, 2),
+	//DDC_MASK_SH_LIST_DCN2(__SHIFT, 3),
+	//DDC_MASK_SH_LIST_DCN2(__SHIFT, 4),
+	//DDC_MASK_SH_LIST_DCN2(__SHIFT, 5),
+	//DDC_MASK_SH_LIST_DCN2(__SHIFT, 6),
+	//DDC_MASK_SH_LIST_DCN2_VGA(__SHIFT)
+//};
+
+//static const struct ddc_sh_mask ddc_mask[] = {
+	//DDC_MASK_SH_LIST_DCN2(_MASK, 1),
+	//DDC_MASK_SH_LIST_DCN2(_MASK, 2),
+	//DDC_MASK_SH_LIST_DCN2(_MASK, 3),
+	//DDC_MASK_SH_LIST_DCN2(_MASK, 4),
+	//DDC_MASK_SH_LIST_DCN2(_MASK, 5),
+	//DDC_MASK_SH_LIST_DCN2(_MASK, 6),
+	//DDC_MASK_SH_LIST_DCN2_VGA(_MASK)
+//};
+
+#include "../generic_regs.h"
+
+/* set field name */
+#define SF_GENERIC(reg_name, field_name, post_fix)\
+	.field_name = 0
+
+static const struct generic_registers generic_regs[] = {
+	{{ 0 }},
+	{{ 0 }},
+};
+
+static const struct generic_sh_mask generic_shift[] = {
+	{ 0 },
+	{ 0 },
+};
+
+static const struct generic_sh_mask generic_mask[] = {
+	{ 0 },
+	{ 0 },
+};
+
+static void define_generic_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_generic *generic = HW_GENERIC_FROM_BASE(pin);
+
+	generic->regs = &generic_regs[en];
+	generic->shifts = &generic_shift[en];
+	generic->masks = &generic_mask[en];
+	generic->base.regs = &generic_regs[en].gpio;
+}
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs_dcn[en];
+		ddc->base.regs = &ddc_data_regs_dcn[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs_dcn[en];
+		ddc->base.regs = &ddc_clk_regs_dcn[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	//ddc->shifts = &ddc_shift[en];
+	//ddc->masks = &ddc_mask[en];
+	ddc->shifts = NULL;
+	ddc->masks = NULL;
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+
+/* function table */
+static const struct hw_factory_funcs funcs = {
+	.init_ddc_data = dal_hw_ddc_init,
+	.init_generic = dal_hw_generic_init,
+	.init_hpd = dal_hw_hpd_init,
+	.get_ddc_pin = dal_hw_ddc_get_pin,
+	.get_hpd_pin = dal_hw_hpd_get_pin,
+	.get_generic_pin = dal_hw_generic_get_pin,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers,
+	.define_generic_registers = define_generic_registers
+};
+
+/*
+ * dal_hw_factory_dcn42_init
+ *
+ * @brief
+ * Initialize HW factory function pointers and pin info
+ *
+ * @param
+ * struct hw_factory *factory - [out] struct of function pointers
+ */
+void dal_hw_factory_dcn42b_init(struct hw_factory *factory)
+{
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 1; // VGA
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 1; // VGA
+	factory->number_of_pins[GPIO_ID_GENERIC] = 4;
+	factory->number_of_pins[GPIO_ID_HPD] = 3; // only 3 HPD
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 28;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 0;
+	factory->number_of_pins[GPIO_ID_GSL] = 0;/*add this*/
+
+	factory->funcs = &funcs;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn42b/hw_factory_dcn42b.h

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2026 Advanced Micro Devices, Inc.
+
+#ifndef __DAL_HW_FACTORY_DCN42B_H__
+#define __DAL_HW_FACTORY_DCN42B_H__
+
+/* Initialize HW factory function pointers and pin info */
+void dal_hw_factory_dcn42b_init(struct hw_factory *factory);
+
+#endif /* __DAL_HW_FACTORY_DCN42B_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn42b/hw_translate_dcn42b.c

@@ -0,0 +1,192 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2026 Advanced Micro Devices, Inc.
+
+#include "hw_translate_dcn42b.h"
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+#include "dcn/dcn_4_2_1_offset.h"
+#include "dcn/dcn_4_2_1_sh_mask.h"
+#include "dpcs/dpcs_4_0_1_offset.h"
+#include "dpcs/dpcs_4_0_1_sh_mask.h"
+
+#define DCN_BASE__INST0_SEG2                       0x000034C0
+
+#define block HPD
+#define reg_num 0
+
+#undef BASE_INNER
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+#undef REG
+#define REG(reg_name) \
+	BASE(reg ## reg_name ## _BASE_IDX) + reg ## reg_name
+#define SF_HPD(reg_name, field_name, post_fix) \
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	(void)mask;
+	switch (offset) {
+	/* HPD */
+	case REG(HPD0_DC_HPD_INT_STATUS):
+		*id = GPIO_ID_HPD;
+		*en = GPIO_HPD_1;
+		return true;
+	case REG(HPD1_DC_HPD_INT_STATUS):
+		*id = GPIO_ID_HPD;
+		*en = GPIO_HPD_2;
+		return true;
+	case REG(HPD2_DC_HPD_INT_STATUS):
+		*id = GPIO_ID_HPD;
+		*en = GPIO_HPD_3;
+		return true;
+	/* Not in DNC42B
+	case REG(HPD3_DC_HPD_INT_STATUS):
+		*id = GPIO_ID_HPD;
+		*en = GPIO_HPD_4;
+		return true;
+	case REG(HPD4_DC_HPD_INT_STATUS):
+		*id = GPIO_ID_HPD;
+		*en = GPIO_HPD_5;
+		return true;
+	case REG(DC_GPIO_DDC1_A):
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case REG(DC_GPIO_DDC2_A):
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case REG(DC_GPIO_DDC3_A):
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case REG(DC_GPIO_DDC4_A):
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case REG(DC_GPIO_DDC5_A):
+		*en = GPIO_DDC_LINE_DDC5;
+		return true;
+	*/
+	case REG(DC_GPIO_DDCVGA_A):
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+	default:
+		//ASSERT_CRITICAL(false);
+		return false;
+	}
+}
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDCVGA_A__DC_GPIO_DDCVGADATA_A_MASK;
+		switch (en) {
+		/* Not in DCN42B
+		case GPIO_DDC_LINE_DDC
+			info->offset = REG(DC_GPIO_DDC1_A);
+			break;
+		case GPIO_DDC_LINE_DDC
+			info->offset = REG(DC_GPIO_DDC2_A);
+			break;
+		case GPIO_DDC_LINE_DDC
+			info->offset = REG(DC_GPIO_DDC3_A);
+			break;
+		case GPIO_DDC_LINE_DDC
+			info->offset = REG(DC_GPIO_DDC4_A);
+			break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+			break;
+		*/
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+			break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDCVGA_A__DC_GPIO_DDCVGACLK_A_MASK;
+		switch (en) {
+		/* Not in DCN42B
+		case GPIO_DDC_LINE_DDC1:
+				info->offset = REG(DC_GPIO_DDC1_A);
+				break;
+		case GPIO_DDC_LINE_DDC2:
+				info->offset = REG(DC_GPIO_DDC2_A);
+				break;
+		case GPIO_DDC_LINE_DDC3:
+				info->offset = REG(DC_GPIO_DDC3_A);
+				break;
+		case GPIO_DDC_LINE_DDC4:
+				info->offset = REG(DC_GPIO_DDC4_A);
+				break;
+		case GPIO_DDC_LINE_DDC5:
+				info->offset = REG(DC_GPIO_DDC5_A);
+				break;
+		*/
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+			break;
+		case GPIO_DDC_LINE_I2C_PAD:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+			break;
+	case GPIO_ID_SYNC:
+	case GPIO_ID_VIP_PAD:
+	default:
+		ASSERT_CRITICAL(false);
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+/* function table */
+static const struct hw_translate_funcs funcs = {
+	.offset_to_id = offset_to_id,
+	.id_to_offset = id_to_offset,
+};
+
+/*
+ * dal_hw_translate_dcn42b_init
+ *
+ * @brief
+ * Initialize Hw translate function pointers.
+ *
+ * @param
+ * struct hw_translate *tr - [out] struct of function pointers
+ *
+ */
+void dal_hw_translate_dcn42b_init(struct hw_translate *tr)
+{
+	tr->funcs = &funcs;
+}
+

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/dcn42b/hw_translate_dcn42b.h

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2026 Advanced Micro Devices, Inc.
+
+#ifndef __DAL_HW_TRANSLATE_DCN42B_H__
+#define __DAL_HW_TRANSLATE_DCN42B_H__
+
+struct hw_translate;
+
+/* Initialize Hw translate function pointers */
+void dal_hw_translate_dcn42b_init(struct hw_translate *tr);
+
+#endif /* __DAL_HW_TRANSLATE_DCN42B_H__ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/ddc_regs.h

@@ -0,0 +1,201 @@
+/*
+ * Copyright 2012-16 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_DDC_REGS_H_
+#define DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_DDC_REGS_H_
+
+#include "gpio_regs.h"
+
+/****************************** new register headers */
+/*** following in header */
+
+#define DDC_GPIO_REG_LIST_ENTRY(type, cd, id) \
+	.type ## _reg =   REG(DC_GPIO_DDC ## id ## _ ## type),\
+	.type ## _mask =  DC_GPIO_DDC ## id ## _ ## type ## __DC_GPIO_DDC ## id ## cd ## _ ## type ## _MASK,\
+	.type ## _shift = DC_GPIO_DDC ## id ## _ ## type ## __DC_GPIO_DDC ## id ## cd ## _ ## type ## __SHIFT
+
+#define DDC_GPIO_REG_LIST(cd, id) \
+	{\
+	DDC_GPIO_REG_LIST_ENTRY(MASK, cd, id),\
+	DDC_GPIO_REG_LIST_ENTRY(A, cd, id),\
+	DDC_GPIO_REG_LIST_ENTRY(EN, cd, id),\
+	DDC_GPIO_REG_LIST_ENTRY(Y, cd, id)\
+	}
+
+#define DDC_REG_LIST(cd, id) \
+	DDC_GPIO_REG_LIST(cd, id),\
+	.ddc_setup = REG(DC_I2C_DDC ## id ## _SETUP)
+
+	#define DDC_REG_LIST_DCN2(cd, id) \
+	DDC_GPIO_REG_LIST(cd, id),\
+	.ddc_setup = REG(DC_I2C_DDC ## id ## _SETUP),\
+	.phy_aux_cntl = REG(PHY_AUX_CNTL), \
+	.dc_gpio_aux_ctrl_5 = REG(DC_GPIO_AUX_CTRL_5)
+
+#define DDC_GPIO_VGA_REG_LIST_ENTRY(type, cd)\
+	.type ## _reg =   REG(DC_GPIO_DDCVGA_ ## type),\
+	.type ## _mask =  DC_GPIO_DDCVGA_ ## type ## __DC_GPIO_DDCVGA ## cd ## _ ## type ## _MASK,\
+	.type ## _shift = DC_GPIO_DDCVGA_ ## type ## __DC_GPIO_DDCVGA ## cd ## _ ## type ## __SHIFT
+
+#define DDC_GPIO_VGA_REG_LIST(cd) \
+	{\
+	DDC_GPIO_VGA_REG_LIST_ENTRY(MASK, cd),\
+	DDC_GPIO_VGA_REG_LIST_ENTRY(A, cd),\
+	DDC_GPIO_VGA_REG_LIST_ENTRY(EN, cd),\
+	DDC_GPIO_VGA_REG_LIST_ENTRY(Y, cd)\
+	}
+
+#define DDC_VGA_REG_LIST(cd) \
+	DDC_GPIO_VGA_REG_LIST(cd),\
+	.ddc_setup = mmDC_I2C_DDCVGA_SETUP
+
+#define DDC_GPIO_I2C_REG_LIST_ENTRY(type, cd) \
+	.type ## _reg =   REG(DC_GPIO_I2CPAD_ ## type),\
+	.type ## _mask =  DC_GPIO_I2CPAD_ ## type ## __DC_GPIO_ ## cd ## _ ## type ## _MASK,\
+	.type ## _shift = DC_GPIO_I2CPAD_ ## type ## __DC_GPIO_ ## cd ## _ ## type ## __SHIFT
+
+#define DDC_GPIO_I2C_REG_LIST(cd) \
+	{\
+	DDC_GPIO_I2C_REG_LIST_ENTRY(MASK, cd),\
+	DDC_GPIO_I2C_REG_LIST_ENTRY(A, cd),\
+	DDC_GPIO_I2C_REG_LIST_ENTRY(EN, cd),\
+	DDC_GPIO_I2C_REG_LIST_ENTRY(Y, cd)\
+	}
+
+#define DDC_I2C_REG_LIST(cd) \
+	DDC_GPIO_I2C_REG_LIST(cd),\
+	.ddc_setup = 0
+
+#define DDC_I2C_REG_LIST_DCN2(cd) \
+	DDC_GPIO_I2C_REG_LIST(cd),\
+	.ddc_setup = 0,\
+	.phy_aux_cntl = REG(PHY_AUX_CNTL), \
+	.dc_gpio_aux_ctrl_5 = REG(DC_GPIO_AUX_CTRL_5)
+#define DDC_MASK_SH_LIST_COMMON(mask_sh) \
+		SF_DDC(DC_I2C_DDC1_SETUP, DC_I2C_DDC1_ENABLE, mask_sh),\
+		SF_DDC(DC_I2C_DDC1_SETUP, DC_I2C_DDC1_EDID_DETECT_ENABLE, mask_sh),\
+		SF_DDC(DC_I2C_DDC1_SETUP, DC_I2C_DDC1_EDID_DETECT_MODE, mask_sh),\
+		SF_DDC(DC_GPIO_DDC1_MASK, DC_GPIO_DDC1DATA_PD_EN, mask_sh),\
+		SF_DDC(DC_GPIO_DDC1_MASK, DC_GPIO_DDC1CLK_PD_EN, mask_sh),\
+		SF_DDC(DC_GPIO_DDC1_MASK, AUX_PAD1_MODE, mask_sh)
+
+#define DDC_MASK_SH_LIST(mask_sh) \
+		DDC_MASK_SH_LIST_COMMON(mask_sh),\
+		SF_DDC(DC_GPIO_I2CPAD_MASK, DC_GPIO_SDA_PD_DIS, mask_sh),\
+		SF_DDC(DC_GPIO_I2CPAD_MASK, DC_GPIO_SCL_PD_DIS, mask_sh)
+
+#define DDC_MASK_SH_LIST_DCN2(mask_sh, cd) \
+	{DDC_MASK_SH_LIST_COMMON(mask_sh),\
+	0,\
+	0,\
+	(PHY_AUX_CNTL__AUX## cd ##_PAD_RXSEL## mask_sh),\
+	(DC_GPIO_AUX_CTRL_5__DDC_PAD## cd ##_I2CMODE## mask_sh)}
+
+#define DDC_MASK_SH_LIST_DCN2_VGA(mask_sh) \
+	{DDC_MASK_SH_LIST_COMMON(mask_sh),\
+	0,\
+	0,\
+	0,\
+	0}
+
+struct ddc_registers {
+	struct gpio_registers gpio;
+	uint32_t ddc_setup;
+	uint32_t phy_aux_cntl;
+	uint32_t dc_gpio_aux_ctrl_5;
+};
+
+struct ddc_sh_mask {
+	/* i2c_dd_setup */
+	uint32_t DC_I2C_DDC1_ENABLE;
+	uint32_t DC_I2C_DDC1_EDID_DETECT_ENABLE;
+	uint32_t DC_I2C_DDC1_EDID_DETECT_MODE;
+	/* ddc1_mask */
+	uint32_t DC_GPIO_DDC1DATA_PD_EN;
+	uint32_t DC_GPIO_DDC1CLK_PD_EN;
+	uint32_t AUX_PAD1_MODE;
+	/* i2cpad_mask */
+	uint32_t DC_GPIO_SDA_PD_DIS;
+	uint32_t DC_GPIO_SCL_PD_DIS;
+	//phy_aux_cntl
+	uint32_t AUX_PAD_RXSEL;
+	uint32_t DDC_PAD_I2CMODE;
+};
+
+
+
+/*** following in dc_resource */
+
+#define ddc_data_regs(id) \
+{\
+	DDC_REG_LIST(DATA, id)\
+}
+
+#define ddc_clk_regs(id) \
+{\
+	DDC_REG_LIST(CLK, id)\
+}
+
+#define ddc_vga_data_regs \
+{\
+	DDC_VGA_REG_LIST(DATA)\
+}
+
+#define ddc_vga_clk_regs \
+{\
+	DDC_VGA_REG_LIST(CLK)\
+}
+
+#define ddc_i2c_data_regs \
+{\
+	DDC_I2C_REG_LIST(SDA)\
+}
+
+#define ddc_i2c_clk_regs \
+{\
+	DDC_I2C_REG_LIST(SCL)\
+}
+#define ddc_data_regs_dcn2(id) \
+{\
+	DDC_REG_LIST_DCN2(DATA, id)\
+}
+
+#define ddc_clk_regs_dcn2(id) \
+{\
+	DDC_REG_LIST_DCN2(CLK, id)\
+}
+
+#define ddc_i2c_data_regs_dcn2 \
+{\
+	DDC_I2C_REG_LIST_DCN2(SDA)\
+}
+
+#define ddc_i2c_clk_regs_dcn2 \
+{\
+	DDC_REG_LIST_DCN2(SCL)\
+}
+
+
+#endif /* DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_DDC_REGS_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/generic_regs.h

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2012-16 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_GENERIC_REGS_H_
+#define DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_GENERIC_REGS_H_
+
+#include "gpio_regs.h"
+
+#define GENERIC_GPIO_REG_LIST_ENTRY(type, cd, id) \
+	.type ## _reg =  REG(DC_GPIO_GENERIC_## type),\
+	.type ## _mask =  DC_GPIO_GENERIC_ ## type ## __DC_GPIO_GENERIC ## id ## _ ## type ## _MASK,\
+	.type ## _shift = DC_GPIO_GENERIC_ ## type ## __DC_GPIO_GENERIC ## id ## _ ## type ## __SHIFT
+
+#define GENERIC_GPIO_REG_LIST(id) \
+	{\
+	GENERIC_GPIO_REG_LIST_ENTRY(MASK, cd, id),\
+	GENERIC_GPIO_REG_LIST_ENTRY(A, cd, id),\
+	GENERIC_GPIO_REG_LIST_ENTRY(EN, cd, id),\
+	GENERIC_GPIO_REG_LIST_ENTRY(Y, cd, id)\
+	}
+
+#define GENERIC_REG_LIST(id) \
+	GENERIC_GPIO_REG_LIST(id), \
+	.mux = REG(DC_GENERIC ## id),\
+
+#define GENERIC_MASK_SH_LIST(mask_sh, cd) \
+	{(DC_GENERIC ## cd ##__GENERIC ## cd ##_EN## mask_sh),\
+	(DC_GENERIC ## cd ##__GENERIC ## cd ##_SEL## mask_sh)}
+
+struct generic_registers {
+	struct gpio_registers gpio;
+	uint32_t mux;
+};
+
+struct generic_sh_mask {
+	/* enable */
+	uint32_t GENERIC_EN;
+	/* select */
+	uint32_t GENERIC_SEL;
+
+};
+
+
+#endif /* DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_GENERIC_REGS_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c

@@ -0,0 +1,352 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+
+#include "dm_services.h"
+
+#include "include/gpio_interface.h"
+#include "include/gpio_service_interface.h"
+#include "hw_gpio.h"
+#include "hw_translate.h"
+#include "hw_factory.h"
+#include "gpio_service.h"
+
+/*
+ * Post-requisites: headers required by this unit
+ */
+
+/*
+ * This unit
+ */
+
+/*
+ * @brief
+ * Public API
+ */
+
+enum gpio_result dal_gpio_open(
+	struct gpio *gpio,
+	enum gpio_mode mode)
+{
+	return dal_gpio_open_ex(gpio, mode);
+}
+
+enum gpio_result dal_gpio_open_ex(
+	struct gpio *gpio,
+	enum gpio_mode mode)
+{
+	if (gpio->pin) {
+		BREAK_TO_DEBUGGER();
+		return GPIO_RESULT_ALREADY_OPENED;
+	}
+
+	// No action if allocation failed during gpio construct
+	if (!gpio->hw_container.ddc) {
+		BREAK_TO_DEBUGGER();
+		return GPIO_RESULT_NON_SPECIFIC_ERROR;
+	}
+	gpio->mode = mode;
+
+	return dal_gpio_service_open(gpio);
+}
+
+enum gpio_result dal_gpio_get_value(
+	const struct gpio *gpio,
+	uint32_t *value)
+{
+	if (!gpio->pin) {
+		BREAK_TO_DEBUGGER();
+		return GPIO_RESULT_NULL_HANDLE;
+	}
+
+	return gpio->pin->funcs->get_value(gpio->pin, value);
+}
+
+enum gpio_result dal_gpio_set_value(
+	const struct gpio *gpio,
+	uint32_t value)
+{
+	if (!gpio->pin) {
+		BREAK_TO_DEBUGGER();
+		return GPIO_RESULT_NULL_HANDLE;
+	}
+
+	return gpio->pin->funcs->set_value(gpio->pin, value);
+}
+
+enum gpio_mode dal_gpio_get_mode(
+	const struct gpio *gpio)
+{
+	return gpio->mode;
+}
+
+enum gpio_result dal_gpio_lock_pin(
+	struct gpio *gpio)
+{
+	return dal_gpio_service_lock(gpio->service, gpio->id, gpio->en);
+}
+
+enum gpio_result dal_gpio_unlock_pin(
+	struct gpio *gpio)
+{
+	return dal_gpio_service_unlock(gpio->service, gpio->id, gpio->en);
+}
+
+enum gpio_result dal_gpio_change_mode(
+	struct gpio *gpio,
+	enum gpio_mode mode)
+{
+	if (!gpio->pin) {
+		BREAK_TO_DEBUGGER();
+		return GPIO_RESULT_NULL_HANDLE;
+	}
+
+	return gpio->pin->funcs->change_mode(gpio->pin, mode);
+}
+
+enum gpio_id dal_gpio_get_id(
+	const struct gpio *gpio)
+{
+	return gpio->id;
+}
+
+uint32_t dal_gpio_get_enum(
+	const struct gpio *gpio)
+{
+	return gpio->en;
+}
+
+enum gpio_result dal_gpio_set_config(
+	struct gpio *gpio,
+	const struct gpio_config_data *config_data)
+{
+	if (!gpio->pin) {
+		BREAK_TO_DEBUGGER();
+		return GPIO_RESULT_NULL_HANDLE;
+	}
+
+	return gpio->pin->funcs->set_config(gpio->pin, config_data);
+}
+
+enum gpio_result dal_gpio_get_pin_info(
+	const struct gpio *gpio,
+	struct gpio_pin_info *pin_info)
+{
+	return gpio->service->translate.funcs->id_to_offset(
+		gpio->id, gpio->en, pin_info) ?
+		GPIO_RESULT_OK : GPIO_RESULT_INVALID_DATA;
+}
+
+enum sync_source dal_gpio_get_sync_source(
+	const struct gpio *gpio)
+{
+	switch (gpio->id) {
+	case GPIO_ID_GENERIC:
+		switch (gpio->en) {
+		case GPIO_GENERIC_A:
+			return SYNC_SOURCE_IO_GENERIC_A;
+		case GPIO_GENERIC_B:
+			return SYNC_SOURCE_IO_GENERIC_B;
+		case GPIO_GENERIC_C:
+			return SYNC_SOURCE_IO_GENERIC_C;
+		case GPIO_GENERIC_D:
+			return SYNC_SOURCE_IO_GENERIC_D;
+		case GPIO_GENERIC_E:
+			return SYNC_SOURCE_IO_GENERIC_E;
+		case GPIO_GENERIC_F:
+			return SYNC_SOURCE_IO_GENERIC_F;
+		default:
+			return SYNC_SOURCE_NONE;
+		}
+	break;
+	case GPIO_ID_SYNC:
+		switch (gpio->en) {
+		case GPIO_SYNC_HSYNC_A:
+			return SYNC_SOURCE_IO_HSYNC_A;
+		case GPIO_SYNC_VSYNC_A:
+			return SYNC_SOURCE_IO_VSYNC_A;
+		case GPIO_SYNC_HSYNC_B:
+			return SYNC_SOURCE_IO_HSYNC_B;
+		case GPIO_SYNC_VSYNC_B:
+			return SYNC_SOURCE_IO_VSYNC_B;
+		default:
+			return SYNC_SOURCE_NONE;
+		}
+	break;
+	case GPIO_ID_HPD:
+		switch (gpio->en) {
+		case GPIO_HPD_1:
+			return SYNC_SOURCE_IO_HPD1;
+		case GPIO_HPD_2:
+			return SYNC_SOURCE_IO_HPD2;
+		default:
+			return SYNC_SOURCE_NONE;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (gpio->en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+			return SYNC_SOURCE_GSL_IO_GENLOCK_CLOCK;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			return SYNC_SOURCE_GSL_IO_GENLOCK_VSYNC;
+		case GPIO_GSL_SWAPLOCK_A:
+			return SYNC_SOURCE_GSL_IO_SWAPLOCK_A;
+		case GPIO_GSL_SWAPLOCK_B:
+			return SYNC_SOURCE_GSL_IO_SWAPLOCK_B;
+		default:
+			return SYNC_SOURCE_NONE;
+		}
+	break;
+	default:
+		return SYNC_SOURCE_NONE;
+	}
+}
+
+enum gpio_pin_output_state dal_gpio_get_output_state(
+	const struct gpio *gpio)
+{
+	return gpio->output_state;
+}
+
+struct hw_ddc *dal_gpio_get_ddc(struct gpio *gpio)
+{
+	return gpio->hw_container.ddc;
+}
+
+struct hw_hpd *dal_gpio_get_hpd(struct gpio *gpio)
+{
+	return gpio->hw_container.hpd;
+}
+
+struct hw_generic *dal_gpio_get_generic(struct gpio *gpio)
+{
+	return gpio->hw_container.generic;
+}
+
+void dal_gpio_close(
+	struct gpio *gpio)
+{
+	if (!gpio)
+		return;
+
+	dal_gpio_service_close(gpio->service, &gpio->pin);
+
+	gpio->mode = GPIO_MODE_UNKNOWN;
+}
+
+/*
+ * @brief
+ * Creation and destruction
+ */
+
+struct gpio *dal_gpio_create(
+	struct gpio_service *service,
+	enum gpio_id id,
+	uint32_t en,
+	enum gpio_pin_output_state output_state)
+{
+	struct gpio *gpio = kzalloc_obj(struct gpio);
+
+	if (!gpio) {
+		ASSERT_CRITICAL(false);
+		return NULL;
+	}
+
+	gpio->service = service;
+	gpio->pin = NULL;
+	gpio->id = id;
+	gpio->en = en;
+	gpio->mode = GPIO_MODE_UNKNOWN;
+	gpio->output_state = output_state;
+
+	//initialize hw_container union based on id
+	switch (gpio->id) {
+	case GPIO_ID_DDC_DATA:
+		gpio->service->factory.funcs->init_ddc_data(&gpio->hw_container.ddc, service->ctx, id, en);
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		gpio->service->factory.funcs->init_ddc_data(&gpio->hw_container.ddc, service->ctx, id, en);
+		break;
+	case GPIO_ID_GENERIC:
+		gpio->service->factory.funcs->init_generic(&gpio->hw_container.generic, service->ctx, id, en);
+		break;
+	case GPIO_ID_HPD:
+		gpio->service->factory.funcs->init_hpd(&gpio->hw_container.hpd, service->ctx, id, en);
+		break;
+	// TODO: currently gpio for sync and gsl does not get created, might need it later
+	case GPIO_ID_SYNC:
+		break;
+	case GPIO_ID_GSL:
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		gpio->pin = NULL;
+	}
+
+	return gpio;
+}
+
+void dal_gpio_destroy(
+	struct gpio **gpio)
+{
+	if (!gpio || !*gpio) {
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	switch ((*gpio)->id) {
+	case GPIO_ID_DDC_DATA:
+		kfree((*gpio)->hw_container.ddc);
+		(*gpio)->hw_container.ddc = NULL;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		//TODO: might want to change it to init_ddc_clock
+		kfree((*gpio)->hw_container.ddc);
+		(*gpio)->hw_container.ddc = NULL;
+		break;
+	case GPIO_ID_GENERIC:
+		kfree((*gpio)->hw_container.generic);
+		(*gpio)->hw_container.generic = NULL;
+		break;
+	case GPIO_ID_HPD:
+		kfree((*gpio)->hw_container.hpd);
+		(*gpio)->hw_container.hpd = NULL;
+		break;
+	// TODO: currently gpio for sync and gsl does not get created, might need it later
+	case GPIO_ID_SYNC:
+		break;
+	case GPIO_ID_GSL:
+		break;
+	default:
+		break;
+	}
+
+	kfree(*gpio);
+
+	*gpio = NULL;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/gpio_regs.h

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2012-16 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_GPIO_REGS_H_
+#define DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_GPIO_REGS_H_
+
+struct gpio_registers {
+	uint32_t MASK_reg;
+	uint32_t MASK_mask;
+	uint32_t MASK_shift;
+	uint32_t A_reg;
+	uint32_t A_mask;
+	uint32_t A_shift;
+	uint32_t EN_reg;
+	uint32_t EN_mask;
+	uint32_t EN_shift;
+	uint32_t Y_reg;
+	uint32_t Y_mask;
+	uint32_t Y_shift;
+};
+
+
+#endif /* DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_GPIO_REGS_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c

@@ -0,0 +1,678 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+
+#include "dm_services.h"
+#include "include/gpio_interface.h"
+#include "include/gpio_service_interface.h"
+#include "hw_translate.h"
+#include "hw_factory.h"
+
+/*
+ * Header of this unit
+ */
+
+#include "gpio_service.h"
+
+/*
+ * Post-requisites: headers required by this unit
+ */
+
+#include "hw_gpio.h"
+
+/*
+ * @brief
+ * Public API.
+ */
+
+struct gpio_service *dal_gpio_service_create(
+	enum dce_version dce_version,
+	enum dce_environment dce_environment,
+	struct dc_context *ctx)
+{
+	struct gpio_service *service;
+	int32_t index_of_id;
+
+	service = kzalloc_obj(struct gpio_service);
+
+	if (!service) {
+		BREAK_TO_DEBUGGER();
+		return NULL;
+	}
+
+	if (!dal_hw_translate_init(&service->translate, dce_version,
+			dce_environment)) {
+		BREAK_TO_DEBUGGER();
+		goto failure_1;
+	}
+
+	if (!dal_hw_factory_init(&service->factory, dce_version,
+			dce_environment)) {
+		BREAK_TO_DEBUGGER();
+		goto failure_1;
+	}
+
+	/* allocate and initialize busyness storage */
+	{
+		index_of_id = 0;
+		service->ctx = ctx;
+
+		do {
+			uint32_t number_of_bits =
+				service->factory.number_of_pins[index_of_id];
+			uint32_t i = 0;
+
+			if (number_of_bits)  {
+				service->busyness[index_of_id] =
+					kcalloc(number_of_bits, sizeof(char),
+						GFP_KERNEL);
+
+				if (!service->busyness[index_of_id]) {
+					BREAK_TO_DEBUGGER();
+					goto failure_2;
+				}
+
+				do {
+					service->busyness[index_of_id][i] = 0;
+					++i;
+				} while (i < number_of_bits);
+			} else {
+				service->busyness[index_of_id] = NULL;
+			}
+
+			++index_of_id;
+		} while (index_of_id < GPIO_ID_COUNT);
+	}
+
+	return service;
+
+failure_2:
+	while (index_of_id > 0) {
+		--index_of_id;
+		kfree(service->busyness[index_of_id]);
+	}
+
+failure_1:
+	kfree(service);
+
+	return NULL;
+}
+
+struct gpio *dal_gpio_service_create_irq(
+	struct gpio_service *service,
+	uint32_t offset,
+	uint32_t mask)
+{
+	enum gpio_id id = 0;
+	uint32_t en;
+
+	if (!service->translate.funcs->offset_to_id(offset, mask, &id, &en)) {
+		ASSERT_CRITICAL(false);
+		return NULL;
+	}
+
+	return dal_gpio_create_irq(service, id, en);
+}
+
+struct gpio *dal_gpio_service_create_generic_mux(
+	struct gpio_service *service,
+	uint32_t offset,
+	uint32_t mask)
+{
+	enum gpio_id id = 0;
+	uint32_t en;
+	struct gpio *generic;
+
+	if (!service->translate.funcs->offset_to_id(offset, mask, &id, &en)) {
+		ASSERT_CRITICAL(false);
+		return NULL;
+	}
+
+	generic = dal_gpio_create(
+		service, id, en, GPIO_PIN_OUTPUT_STATE_DEFAULT);
+
+	return generic;
+}
+
+void dal_gpio_destroy_generic_mux(
+	struct gpio **mux)
+{
+	if (!mux || !*mux) {
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	dal_gpio_destroy(mux);
+	kfree(*mux);
+
+	*mux = NULL;
+}
+
+struct gpio_pin_info dal_gpio_get_generic_pin_info(
+	struct gpio_service *service,
+	enum gpio_id id,
+	uint32_t en)
+{
+	struct gpio_pin_info pin = {0};
+
+	if (service->translate.funcs->id_to_offset) {
+		service->translate.funcs->id_to_offset(id, en, &pin);
+	} else {
+		pin.mask = 0xFFFFFFFF;
+		pin.offset = 0xFFFFFFFF;
+	}
+
+	return pin;
+}
+
+void dal_gpio_service_destroy(
+	struct gpio_service **ptr)
+{
+	if (!ptr || !*ptr) {
+		BREAK_TO_DEBUGGER();
+		return;
+	}
+
+	/* free business storage */
+	{
+		uint32_t index_of_id = 0;
+
+		do {
+			kfree((*ptr)->busyness[index_of_id]);
+
+			++index_of_id;
+		} while (index_of_id < GPIO_ID_COUNT);
+	}
+
+	kfree(*ptr);
+
+	*ptr = NULL;
+}
+
+enum gpio_result dal_mux_setup_config(
+	struct gpio *mux,
+	struct gpio_generic_mux_config *config)
+{
+	struct gpio_config_data config_data;
+
+	if (!config)
+		return GPIO_RESULT_INVALID_DATA;
+
+	config_data.config.generic_mux = *config;
+	config_data.type = GPIO_CONFIG_TYPE_GENERIC_MUX;
+
+	return dal_gpio_set_config(mux, &config_data);
+}
+
+/*
+ * @brief
+ * Private API.
+ */
+
+static bool is_pin_busy(
+	const struct gpio_service *service,
+	enum gpio_id id,
+	uint32_t en)
+{
+	if (id == GPIO_ID_UNKNOWN)
+		return false;
+
+	return service->busyness[id][en];
+}
+
+static void set_pin_busy(
+	struct gpio_service *service,
+	enum gpio_id id,
+	uint32_t en)
+{
+	if (id == GPIO_ID_UNKNOWN)
+		return;
+
+	service->busyness[id][en] = true;
+}
+
+static void set_pin_free(
+	struct gpio_service *service,
+	enum gpio_id id,
+	uint32_t en)
+{
+	if (id == GPIO_ID_UNKNOWN)
+		return;
+
+	service->busyness[id][en] = false;
+}
+
+enum gpio_result dal_gpio_service_lock(
+	struct gpio_service *service,
+	enum gpio_id id,
+	uint32_t en)
+{
+	if (id != GPIO_ID_UNKNOWN && !service->busyness[id]) {
+		ASSERT_CRITICAL(false);
+		return GPIO_RESULT_OPEN_FAILED;
+	}
+
+	set_pin_busy(service, id, en);
+	return GPIO_RESULT_OK;
+}
+
+enum gpio_result dal_gpio_service_unlock(
+	struct gpio_service *service,
+	enum gpio_id id,
+	uint32_t en)
+{
+	if (id != GPIO_ID_UNKNOWN && !service->busyness[id]) {
+		ASSERT_CRITICAL(false);
+		return GPIO_RESULT_OPEN_FAILED;
+	}
+
+	set_pin_free(service, id, en);
+	return GPIO_RESULT_OK;
+}
+
+enum gpio_result dal_gpio_service_open(
+	struct gpio *gpio)
+{
+	struct gpio_service *service = gpio->service;
+	enum gpio_id id = gpio->id;
+	uint32_t en = gpio->en;
+	enum gpio_mode mode = gpio->mode;
+
+	struct hw_gpio_pin **pin = &gpio->pin;
+
+
+	if (!service->busyness[id]) {
+		ASSERT_CRITICAL(false);
+		return GPIO_RESULT_OPEN_FAILED;
+	}
+
+	if (is_pin_busy(service, id, en)) {
+		ASSERT_CRITICAL(false);
+		return GPIO_RESULT_DEVICE_BUSY;
+	}
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		*pin = service->factory.funcs->get_ddc_pin(gpio);
+		service->factory.funcs->define_ddc_registers(*pin, en);
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		*pin = service->factory.funcs->get_ddc_pin(gpio);
+		service->factory.funcs->define_ddc_registers(*pin, en);
+	break;
+	case GPIO_ID_GENERIC:
+		*pin = service->factory.funcs->get_generic_pin(gpio);
+		service->factory.funcs->define_generic_registers(*pin, en);
+	break;
+	case GPIO_ID_HPD:
+		*pin = service->factory.funcs->get_hpd_pin(gpio);
+		service->factory.funcs->define_hpd_registers(*pin, en);
+	break;
+
+	//TODO: gsl and sync support? create_sync and create_gsl are NULL
+	case GPIO_ID_SYNC:
+	case GPIO_ID_GSL:
+	break;
+	default:
+		ASSERT_CRITICAL(false);
+		return GPIO_RESULT_NON_SPECIFIC_ERROR;
+	}
+
+	if (!*pin) {
+		ASSERT_CRITICAL(false);
+		return GPIO_RESULT_NON_SPECIFIC_ERROR;
+	}
+
+	if (!(*pin)->funcs->open(*pin, mode)) {
+		ASSERT_CRITICAL(false);
+		dal_gpio_service_close(service, pin);
+		return GPIO_RESULT_OPEN_FAILED;
+	}
+
+	set_pin_busy(service, id, en);
+	return GPIO_RESULT_OK;
+}
+
+void dal_gpio_service_close(
+	struct gpio_service *service,
+	struct hw_gpio_pin **ptr)
+{
+	struct hw_gpio_pin *pin;
+
+	if (!ptr) {
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	pin = *ptr;
+
+	if (pin) {
+		set_pin_free(service, pin->id, pin->en);
+
+		pin->funcs->close(pin);
+
+		*ptr = NULL;
+	}
+}
+
+enum dc_irq_source dal_irq_get_source(
+	const struct gpio *irq)
+{
+	enum gpio_id id = dal_gpio_get_id(irq);
+
+	switch (id) {
+	case GPIO_ID_HPD:
+		return (enum dc_irq_source)(DC_IRQ_SOURCE_HPD1 +
+			dal_gpio_get_enum(irq));
+	case GPIO_ID_GPIO_PAD:
+		return (enum dc_irq_source)(DC_IRQ_SOURCE_GPIOPAD0 +
+			dal_gpio_get_enum(irq));
+	default:
+		return DC_IRQ_SOURCE_INVALID;
+	}
+}
+
+enum dc_irq_source dal_irq_get_rx_source(
+	const struct gpio *irq)
+{
+	enum gpio_id id = dal_gpio_get_id(irq);
+
+	switch (id) {
+	case GPIO_ID_HPD:
+		return (enum dc_irq_source)(DC_IRQ_SOURCE_HPD1RX +
+			dal_gpio_get_enum(irq));
+	default:
+		return DC_IRQ_SOURCE_INVALID;
+	}
+}
+
+enum dc_irq_source dal_irq_get_read_request(
+	const struct gpio *irq)
+{
+	enum gpio_id id = dal_gpio_get_id(irq);
+
+	switch (id) {
+	case GPIO_ID_HPD:
+		return (enum dc_irq_source)(DC_IRQ_SOURCE_DCI2C_RR_DDC1 +
+			dal_gpio_get_enum(irq));
+	default:
+		return DC_IRQ_SOURCE_INVALID;
+	}
+}
+
+enum gpio_result dal_irq_setup_hpd_filter(
+	struct gpio *irq,
+	struct gpio_hpd_config *config)
+{
+	struct gpio_config_data config_data;
+
+	if (!config)
+		return GPIO_RESULT_INVALID_DATA;
+
+	config_data.type = GPIO_CONFIG_TYPE_HPD;
+	config_data.config.hpd = *config;
+
+	return dal_gpio_set_config(irq, &config_data);
+}
+
+/*
+ * @brief
+ * Creation and destruction
+ */
+
+struct gpio *dal_gpio_create_irq(
+	struct gpio_service *service,
+	enum gpio_id id,
+	uint32_t en)
+{
+	struct gpio *irq;
+
+	switch (id) {
+	case GPIO_ID_HPD:
+	case GPIO_ID_GPIO_PAD:
+	break;
+	default:
+		ASSERT_CRITICAL(false);
+		return NULL;
+	}
+
+	irq = dal_gpio_create(
+		service, id, en, GPIO_PIN_OUTPUT_STATE_DEFAULT);
+
+	if (irq)
+		return irq;
+
+	ASSERT_CRITICAL(false);
+	return NULL;
+}
+
+void dal_gpio_destroy_irq(
+	struct gpio **irq)
+{
+	if (!irq || !*irq) {
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	dal_gpio_destroy(irq);
+	kfree(*irq);
+
+	*irq = NULL;
+}
+
+struct ddc *dal_gpio_create_ddc(
+	struct gpio_service *service,
+	uint32_t offset,
+	uint32_t mask,
+	struct gpio_ddc_hw_info *info)
+{
+	enum gpio_id id;
+	uint32_t en;
+	struct ddc *ddc;
+
+	if (!service->translate.funcs->offset_to_id(offset, mask, &id, &en))
+		return NULL;
+
+	ddc = kzalloc_obj(struct ddc);
+
+	if (!ddc) {
+		BREAK_TO_DEBUGGER();
+		return NULL;
+	}
+
+	ddc->pin_data = dal_gpio_create(
+		service, GPIO_ID_DDC_DATA, en, GPIO_PIN_OUTPUT_STATE_DEFAULT);
+
+	if (!ddc->pin_data) {
+		BREAK_TO_DEBUGGER();
+		goto failure_1;
+	}
+
+	ddc->pin_clock = dal_gpio_create(
+		service, GPIO_ID_DDC_CLOCK, en, GPIO_PIN_OUTPUT_STATE_DEFAULT);
+
+	if (!ddc->pin_clock) {
+		BREAK_TO_DEBUGGER();
+		goto failure_2;
+	}
+
+	ddc->hw_info = *info;
+
+	ddc->ctx = service->ctx;
+
+	return ddc;
+
+failure_2:
+	dal_gpio_destroy(&ddc->pin_data);
+
+failure_1:
+	kfree(ddc);
+
+	return NULL;
+}
+
+void dal_gpio_destroy_ddc(
+	struct ddc **ddc)
+{
+	if (!ddc || !*ddc) {
+		BREAK_TO_DEBUGGER();
+		return;
+	}
+
+	dal_ddc_close(*ddc);
+	dal_gpio_destroy(&(*ddc)->pin_data);
+	dal_gpio_destroy(&(*ddc)->pin_clock);
+	kfree(*ddc);
+
+	*ddc = NULL;
+}
+
+enum gpio_result dal_ddc_open(
+	struct ddc *ddc,
+	enum gpio_mode mode,
+	enum gpio_ddc_config_type config_type)
+{
+	enum gpio_result result;
+
+	struct gpio_config_data config_data;
+	struct hw_gpio *hw_data;
+	struct hw_gpio *hw_clock;
+
+	result = dal_gpio_open_ex(ddc->pin_data, mode);
+
+	if (result != GPIO_RESULT_OK) {
+		BREAK_TO_DEBUGGER();
+		return result;
+	}
+
+	result = dal_gpio_open_ex(ddc->pin_clock, mode);
+
+	if (result != GPIO_RESULT_OK) {
+		BREAK_TO_DEBUGGER();
+		goto failure;
+	}
+
+	/* DDC clock and data pins should belong
+	 * to the same DDC block id,
+	 * we use the data pin to set the pad mode. */
+
+	if (mode == GPIO_MODE_INPUT)
+		/* this is from detect_sink_type,
+		 * we need extra delay there */
+		config_data.type = GPIO_CONFIG_TYPE_I2C_AUX_DUAL_MODE;
+	else
+		config_data.type = GPIO_CONFIG_TYPE_DDC;
+
+	config_data.config.ddc.type = config_type;
+
+	hw_data = FROM_HW_GPIO_PIN(ddc->pin_data->pin);
+	hw_clock = FROM_HW_GPIO_PIN(ddc->pin_clock->pin);
+
+	config_data.config.ddc.data_en_bit_present = hw_data->store.en != 0;
+	config_data.config.ddc.clock_en_bit_present = hw_clock->store.en != 0;
+
+	result = dal_gpio_set_config(ddc->pin_data, &config_data);
+
+	if (result == GPIO_RESULT_OK)
+		return result;
+
+	BREAK_TO_DEBUGGER();
+
+	dal_gpio_close(ddc->pin_clock);
+
+failure:
+	dal_gpio_close(ddc->pin_data);
+
+	return result;
+}
+
+enum gpio_result dal_ddc_change_mode(
+	struct ddc *ddc,
+	enum gpio_mode mode)
+{
+	enum gpio_result result;
+
+	enum gpio_mode original_mode =
+		dal_gpio_get_mode(ddc->pin_data);
+
+	result = dal_gpio_change_mode(ddc->pin_data, mode);
+
+	/* [anaumov] DAL2 code returns GPIO_RESULT_NON_SPECIFIC_ERROR
+	 * in case of failures;
+	 * set_mode() is so that, in case of failure,
+	 * we must explicitly set original mode */
+
+	if (result != GPIO_RESULT_OK)
+		goto failure;
+
+	result = dal_gpio_change_mode(ddc->pin_clock, mode);
+
+	if (result == GPIO_RESULT_OK)
+		return result;
+
+	dal_gpio_change_mode(ddc->pin_clock, original_mode);
+
+failure:
+	dal_gpio_change_mode(ddc->pin_data, original_mode);
+
+	return result;
+}
+
+enum gpio_ddc_line dal_ddc_get_line(
+	const struct ddc *ddc)
+{
+	if (!ddc)
+		return GPIO_DDC_LINE_UNKNOWN;
+
+	return (enum gpio_ddc_line)dal_gpio_get_enum(ddc->pin_data);
+}
+
+enum gpio_result dal_ddc_set_config(
+	struct ddc *ddc,
+	enum gpio_ddc_config_type config_type)
+{
+	struct gpio_config_data config_data;
+
+	config_data.type = GPIO_CONFIG_TYPE_DDC;
+
+	config_data.config.ddc.type = config_type;
+	config_data.config.ddc.data_en_bit_present = false;
+	config_data.config.ddc.clock_en_bit_present = false;
+
+	return dal_gpio_set_config(ddc->pin_data, &config_data);
+}
+
+void dal_ddc_close(
+	struct ddc *ddc)
+{
+	if (ddc != NULL) {
+		dal_gpio_close(ddc->pin_clock);
+		dal_gpio_close(ddc->pin_data);
+	}
+}
+

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_GPIO_SERVICE_H__
+#define __DAL_GPIO_SERVICE_H__
+
+struct hw_translate;
+struct hw_factory;
+
+struct gpio_service {
+	struct dc_context *ctx;
+	struct hw_translate translate;
+	struct hw_factory factory;
+	/*
+	 * @brief
+	 * Business storage.
+	 * one byte For each member of 'enum gpio_id'
+	 */
+	char *busyness[GPIO_ID_COUNT];
+};
+
+enum gpio_result dal_gpio_service_open(
+	struct gpio *gpio);
+
+void dal_gpio_service_close(
+	struct gpio_service *service,
+	struct hw_gpio_pin **ptr);
+
+enum gpio_result dal_gpio_service_lock(
+	struct gpio_service *service,
+	enum gpio_id id,
+	uint32_t en);
+
+enum gpio_result dal_gpio_service_unlock(
+	struct gpio_service *service,
+	enum gpio_id id,
+	uint32_t en);
+
+#endif

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/hpd_regs.h

@@ -0,0 +1,79 @@
+/*
+ * Copyright 2012-16 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_HPD_REGS_H_
+#define DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_HPD_REGS_H_
+
+#include "gpio_regs.h"
+
+#define ONE_MORE_0 1
+#define ONE_MORE_1 2
+#define ONE_MORE_2 3
+#define ONE_MORE_3 4
+#define ONE_MORE_4 5
+#define ONE_MORE_5 6
+
+
+#define HPD_GPIO_REG_LIST_ENTRY(type, cd, id) \
+	.type ## _reg =  REG(DC_GPIO_HPD_## type),\
+	.type ## _mask =  DC_GPIO_HPD_ ## type ## __DC_GPIO_HPD ## id ## _ ## type ## _MASK,\
+	.type ## _shift = DC_GPIO_HPD_ ## type ## __DC_GPIO_HPD ## id ## _ ## type ## __SHIFT
+
+#define HPD_GPIO_REG_LIST(id) \
+	{\
+	HPD_GPIO_REG_LIST_ENTRY(MASK, cd, id),\
+	HPD_GPIO_REG_LIST_ENTRY(A, cd, id),\
+	HPD_GPIO_REG_LIST_ENTRY(EN, cd, id),\
+	HPD_GPIO_REG_LIST_ENTRY(Y, cd, id)\
+	}
+
+#define HPD_REG_LIST(id) \
+	HPD_GPIO_REG_LIST(ONE_MORE_ ## id), \
+	.int_status = REGI(DC_HPD_INT_STATUS, HPD, id),\
+	.toggle_filt_cntl = REGI(DC_HPD_TOGGLE_FILT_CNTL, HPD, id)
+
+ #define HPD_MASK_SH_LIST(mask_sh) \
+		SF_HPD(DC_HPD_INT_STATUS, DC_HPD_SENSE_DELAYED, mask_sh),\
+		SF_HPD(DC_HPD_INT_STATUS, DC_HPD_SENSE, mask_sh),\
+		SF_HPD(DC_HPD_TOGGLE_FILT_CNTL, DC_HPD_CONNECT_INT_DELAY, mask_sh),\
+		SF_HPD(DC_HPD_TOGGLE_FILT_CNTL, DC_HPD_DISCONNECT_INT_DELAY, mask_sh)
+
+struct hpd_registers {
+	struct gpio_registers gpio;
+	uint32_t int_status;
+	uint32_t toggle_filt_cntl;
+};
+
+struct hpd_sh_mask {
+	/* int_status */
+	uint32_t DC_HPD_SENSE_DELAYED;
+	uint32_t DC_HPD_SENSE;
+	/* toggle_filt_cntl */
+	uint32_t DC_HPD_CONNECT_INT_DELAY;
+	uint32_t DC_HPD_DISCONNECT_INT_DELAY;
+};
+
+
+#endif /* DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_HPD_REGS_H_ */

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c

@@ -0,0 +1,250 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+
+#include "include/gpio_interface.h"
+#include "include/gpio_types.h"
+#include "hw_gpio.h"
+#include "hw_ddc.h"
+
+#include "reg_helper.h"
+#include "gpio_regs.h"
+
+
+#undef FN
+#define FN(reg_name, field_name) \
+	gpio_reg_shift(ddc->shifts->field_name), ddc->masks->field_name
+
+#define CTX \
+	ddc->base.base.ctx
+#define REG(reg)\
+	(ddc->regs->reg)
+
+struct gpio;
+
+static void dal_hw_ddc_destruct(
+	struct hw_ddc *pin)
+{
+	dal_hw_gpio_destruct(&pin->base);
+}
+
+static void dal_hw_ddc_destroy(
+	struct hw_gpio_pin **ptr)
+{
+	struct hw_ddc *pin = HW_DDC_FROM_BASE(*ptr);
+
+	dal_hw_ddc_destruct(pin);
+
+	kfree(pin);
+
+	*ptr = NULL;
+}
+
+static enum gpio_result set_config(
+	struct hw_gpio_pin *ptr,
+	const struct gpio_config_data *config_data)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(ptr);
+	struct hw_gpio *hw_gpio = NULL;
+	uint32_t regval;
+	uint32_t ddc_data_pd_en = 0;
+	uint32_t ddc_clk_pd_en = 0;
+	uint32_t aux_pad_mode = 0;
+
+	hw_gpio = &ddc->base;
+
+	if (hw_gpio == NULL) {
+		ASSERT_CRITICAL(false);
+		return GPIO_RESULT_NULL_HANDLE;
+	}
+
+	regval = REG_GET_3(gpio.MASK_reg,
+			DC_GPIO_DDC1DATA_PD_EN, &ddc_data_pd_en,
+			DC_GPIO_DDC1CLK_PD_EN, &ddc_clk_pd_en,
+			AUX_PAD1_MODE, &aux_pad_mode);
+
+	switch (config_data->config.ddc.type) {
+	case GPIO_DDC_CONFIG_TYPE_MODE_I2C:
+		/* On plug-in, there is a transient level on the pad
+		 * which must be discharged through the internal pull-down.
+		 * Enable internal pull-down, 2.5msec discharge time
+		 * is required for detection of AUX mode */
+		if (hw_gpio->base.en != GPIO_DDC_LINE_VIP_PAD) {
+			if (!ddc_data_pd_en || !ddc_clk_pd_en) {
+				if (hw_gpio->base.en == GPIO_DDC_LINE_DDC_VGA) {
+					// bit 4 of mask has different usage in some cases
+					REG_SET(gpio.MASK_reg, regval, DC_GPIO_DDC1DATA_PD_EN, 1);
+				} else {
+					REG_SET_2(gpio.MASK_reg, regval,
+						DC_GPIO_DDC1DATA_PD_EN, 1,
+						DC_GPIO_DDC1CLK_PD_EN, 1);
+				}
+				if (config_data->type ==
+						GPIO_CONFIG_TYPE_I2C_AUX_DUAL_MODE)
+					msleep(3);
+			}
+		} else {
+			uint32_t sda_pd_dis = 0;
+			uint32_t scl_pd_dis = 0;
+
+			REG_GET_2(gpio.MASK_reg,
+				  DC_GPIO_SDA_PD_DIS, &sda_pd_dis,
+				  DC_GPIO_SCL_PD_DIS, &scl_pd_dis);
+
+			if (sda_pd_dis) {
+				REG_SET(gpio.MASK_reg, regval,
+						DC_GPIO_SDA_PD_DIS, 0);
+
+				if (config_data->type ==
+						GPIO_CONFIG_TYPE_I2C_AUX_DUAL_MODE)
+					msleep(3);
+			}
+
+			if (!scl_pd_dis) {
+				REG_SET(gpio.MASK_reg, regval,
+						DC_GPIO_SCL_PD_DIS, 1);
+
+				if (config_data->type ==
+						GPIO_CONFIG_TYPE_I2C_AUX_DUAL_MODE)
+					msleep(3);
+			}
+		}
+
+		if (aux_pad_mode) {
+			/* let pins to get de-asserted
+			 * before setting pad to I2C mode */
+			if (config_data->config.ddc.data_en_bit_present ||
+				config_data->config.ddc.clock_en_bit_present)
+				/* [anaumov] in DAL2, there was
+				 * dc_service_delay_in_microseconds(2000); */
+				msleep(2);
+
+			/* set the I2C pad mode */
+			/* read the register again,
+			 * some bits may have been changed */
+			REG_UPDATE(gpio.MASK_reg,
+					AUX_PAD1_MODE, 0);
+		}
+
+		if (ddc->regs->dc_gpio_aux_ctrl_5 != 0) {
+				REG_UPDATE(dc_gpio_aux_ctrl_5, DDC_PAD_I2CMODE, 1);
+		}
+		//set  DC_IO_aux_rxsel = 2'b01
+		if (ddc->regs->phy_aux_cntl != 0) {
+				REG_UPDATE(phy_aux_cntl, AUX_PAD_RXSEL, 1);
+		}
+		return GPIO_RESULT_OK;
+	case GPIO_DDC_CONFIG_TYPE_MODE_AUX:
+		/* set the AUX pad mode */
+		if (!aux_pad_mode) {
+			REG_SET(gpio.MASK_reg, regval,
+					AUX_PAD1_MODE, 1);
+		}
+		if (ddc->regs->dc_gpio_aux_ctrl_5 != 0) {
+			REG_UPDATE(dc_gpio_aux_ctrl_5,
+					DDC_PAD_I2CMODE, 0);
+		}
+
+		return GPIO_RESULT_OK;
+	case GPIO_DDC_CONFIG_TYPE_POLL_FOR_CONNECT:
+		if (hw_gpio->base.en <= GPIO_DDC_LINE_DDC_VGA) {
+			REG_UPDATE_3(ddc_setup,
+				DC_I2C_DDC1_ENABLE, 1,
+				DC_I2C_DDC1_EDID_DETECT_ENABLE, 1,
+				DC_I2C_DDC1_EDID_DETECT_MODE, 0);
+			return GPIO_RESULT_OK;
+		}
+	break;
+	case GPIO_DDC_CONFIG_TYPE_POLL_FOR_DISCONNECT:
+		if (hw_gpio->base.en <= GPIO_DDC_LINE_DDC_VGA) {
+			REG_UPDATE_3(ddc_setup,
+				DC_I2C_DDC1_ENABLE, 1,
+				DC_I2C_DDC1_EDID_DETECT_ENABLE, 1,
+				DC_I2C_DDC1_EDID_DETECT_MODE, 1);
+			return GPIO_RESULT_OK;
+		}
+	break;
+	case GPIO_DDC_CONFIG_TYPE_DISABLE_POLLING:
+		if (hw_gpio->base.en <= GPIO_DDC_LINE_DDC_VGA) {
+			REG_UPDATE_2(ddc_setup,
+				DC_I2C_DDC1_ENABLE, 0,
+				DC_I2C_DDC1_EDID_DETECT_ENABLE, 0);
+			return GPIO_RESULT_OK;
+		}
+	break;
+	}
+
+	BREAK_TO_DEBUGGER();
+
+	return GPIO_RESULT_NON_SPECIFIC_ERROR;
+}
+
+static const struct hw_gpio_pin_funcs funcs = {
+	.destroy = dal_hw_ddc_destroy,
+	.open = dal_hw_gpio_open,
+	.get_value = dal_hw_gpio_get_value,
+	.set_value = dal_hw_gpio_set_value,
+	.set_config = set_config,
+	.change_mode = dal_hw_gpio_change_mode,
+	.close = dal_hw_gpio_close,
+};
+
+static void dal_hw_ddc_construct(
+	struct hw_ddc *ddc,
+	enum gpio_id id,
+	uint32_t en,
+	struct dc_context *ctx)
+{
+	dal_hw_gpio_construct(&ddc->base, id, en, ctx);
+	ddc->base.base.funcs = &funcs;
+}
+
+void dal_hw_ddc_init(
+	struct hw_ddc **hw_ddc,
+	struct dc_context *ctx,
+	enum gpio_id id,
+	uint32_t en)
+{
+	if (en > GPIO_DDC_LINE_MAX) {
+		ASSERT_CRITICAL(false);
+		*hw_ddc = NULL;
+	}
+
+	*hw_ddc = kzalloc_obj(struct hw_ddc);
+	if (!*hw_ddc) {
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	dal_hw_ddc_construct(*hw_ddc, id, en, ctx);
+}
+
+struct hw_gpio_pin *dal_hw_ddc_get_pin(struct gpio *gpio)
+{
+	struct hw_ddc *hw_ddc = dal_gpio_get_ddc(gpio);
+
+	return &hw_ddc->base.base;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_DDC_H__
+#define __DAL_HW_DDC_H__
+
+#include "ddc_regs.h"
+
+struct hw_ddc {
+	struct hw_gpio base;
+	const struct ddc_registers *regs;
+	const struct ddc_sh_mask *shifts;
+	const struct ddc_sh_mask *masks;
+};
+
+#define HW_DDC_FROM_BASE(hw_gpio) \
+	container_of((HW_GPIO_FROM_BASE(hw_gpio)), struct hw_ddc, base)
+
+void dal_hw_ddc_init(
+	struct hw_ddc **hw_ddc,
+	struct dc_context *ctx,
+	enum gpio_id id,
+	uint32_t en);
+
+struct hw_gpio_pin *dal_hw_ddc_get_pin(struct gpio *gpio);
+
+#endif

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/hw_factory.c

@@ -0,0 +1,134 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+#include "include/gpio_types.h"
+
+/*
+ * Header of this unit
+ */
+
+#include "hw_factory.h"
+
+/*
+ * Post-requisites: headers required by this unit
+ */
+
+#if defined(CONFIG_DRM_AMD_DC_SI)
+#include "dce60/hw_factory_dce60.h"
+#endif
+#include "dce80/hw_factory_dce80.h"
+#include "dce110/hw_factory_dce110.h"
+#include "dce120/hw_factory_dce120.h"
+#include "dcn10/hw_factory_dcn10.h"
+#include "dcn20/hw_factory_dcn20.h"
+#include "dcn21/hw_factory_dcn21.h"
+#include "dcn30/hw_factory_dcn30.h"
+#include "dcn315/hw_factory_dcn315.h"
+#include "dcn32/hw_factory_dcn32.h"
+#include "dcn401/hw_factory_dcn401.h"
+#include "dcn42/hw_factory_dcn42.h"
+#include "dcn42b/hw_factory_dcn42b.h"
+
+bool dal_hw_factory_init(
+	struct hw_factory *factory,
+	enum dce_version dce_version,
+	enum dce_environment dce_environment)
+{
+	(void)dce_environment;
+	switch (dce_version) {
+#if defined(CONFIG_DRM_AMD_DC_SI)
+	case DCE_VERSION_6_0:
+	case DCE_VERSION_6_1:
+	case DCE_VERSION_6_4:
+		dal_hw_factory_dce60_init(factory);
+		return true;
+#endif
+	case DCE_VERSION_8_0:
+	case DCE_VERSION_8_1:
+	case DCE_VERSION_8_3:
+		dal_hw_factory_dce80_init(factory);
+		return true;
+
+	case DCE_VERSION_10_0:
+		dal_hw_factory_dce110_init(factory);
+		return true;
+	case DCE_VERSION_11_0:
+	case DCE_VERSION_11_2:
+	case DCE_VERSION_11_22:
+		dal_hw_factory_dce110_init(factory);
+		return true;
+	case DCE_VERSION_12_0:
+	case DCE_VERSION_12_1:
+		dal_hw_factory_dce120_init(factory);
+		return true;
+	case DCN_VERSION_1_0:
+	case DCN_VERSION_1_01:
+		dal_hw_factory_dcn10_init(factory);
+		return true;
+	case DCN_VERSION_2_0:
+		dal_hw_factory_dcn20_init(factory);
+		return true;
+	case DCN_VERSION_2_01:
+	case DCN_VERSION_2_1:
+		dal_hw_factory_dcn21_init(factory);
+		return true;
+	case DCN_VERSION_3_0:
+	case DCN_VERSION_3_01:
+	case DCN_VERSION_3_02:
+	case DCN_VERSION_3_03:
+	case DCN_VERSION_3_1:
+	case DCN_VERSION_3_14:
+	case DCN_VERSION_3_16:
+		dal_hw_factory_dcn30_init(factory);
+		return true;
+	case DCN_VERSION_3_15:
+		dal_hw_factory_dcn315_init(factory);
+		return true;
+	case DCN_VERSION_3_2:
+	case DCN_VERSION_3_21:
+	case DCN_VERSION_3_5:
+	case DCN_VERSION_3_51:
+	case DCN_VERSION_3_6:
+		dal_hw_factory_dcn32_init(factory);
+		return true;
+	case DCN_VERSION_4_01:
+		dal_hw_factory_dcn401_init(factory);
+		return true;
+	case DCN_VERSION_4_2:
+		dal_hw_factory_dcn42_init(factory);
+		return true;
+	case DCN_VERSION_4_2B:
+		dal_hw_factory_dcn42b_init(factory);
+		return true;
+	default:
+		ASSERT_CRITICAL(false);
+		return false;
+	}
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/hw_factory.h

@@ -0,0 +1,77 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_FACTORY_H__
+#define __DAL_HW_FACTORY_H__
+
+struct hw_gpio_pin;
+struct hw_hpd;
+struct hw_ddc;
+struct hw_generic;
+struct gpio;
+
+struct hw_factory {
+	uint32_t number_of_pins[GPIO_ID_COUNT];
+
+	const struct hw_factory_funcs {
+		void (*init_ddc_data)(
+				struct hw_ddc **hw_ddc,
+				struct dc_context *ctx,
+				enum gpio_id id,
+				uint32_t en);
+		void (*init_generic)(
+				struct hw_generic **hw_generic,
+				struct dc_context *ctx,
+				enum gpio_id id,
+				uint32_t en);
+		void (*init_hpd)(
+				struct hw_hpd **hw_hpd,
+				struct dc_context *ctx,
+				enum gpio_id id,
+				uint32_t en);
+		struct hw_gpio_pin *(*get_hpd_pin)(
+				struct gpio *gpio);
+		struct hw_gpio_pin *(*get_ddc_pin)(
+				struct gpio *gpio);
+		struct hw_gpio_pin *(*get_generic_pin)(
+				struct gpio *gpio);
+		void (*define_hpd_registers)(
+				struct hw_gpio_pin *pin,
+				uint32_t en);
+		void (*define_ddc_registers)(
+				struct hw_gpio_pin *pin,
+				uint32_t en);
+		void (*define_generic_registers)(
+				struct hw_gpio_pin *pin,
+				uint32_t en);
+	} *funcs;
+};
+
+bool dal_hw_factory_init(
+	struct hw_factory *factory,
+	enum dce_version dce_version,
+	enum dce_environment dce_environment);
+
+#endif

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/hw_generic.c

@@ -0,0 +1,129 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include <linux/slab.h>
+
+#include "dm_services.h"
+
+#include "include/gpio_interface.h"
+#include "include/gpio_types.h"
+#include "hw_gpio.h"
+#include "hw_generic.h"
+
+#include "reg_helper.h"
+#include "generic_regs.h"
+
+#undef FN
+#define FN(reg_name, field_name) \
+	gpio_reg_shift(generic->shifts->field_name), generic->masks->field_name
+
+#define CTX \
+	generic->base.base.ctx
+#define REG(reg)\
+	(generic->regs->reg)
+
+struct gpio;
+
+static void dal_hw_generic_destruct(
+	struct hw_generic *pin)
+{
+	dal_hw_gpio_destruct(&pin->base);
+}
+
+static void dal_hw_generic_destroy(
+	struct hw_gpio_pin **ptr)
+{
+	struct hw_generic *generic = HW_GENERIC_FROM_BASE(*ptr);
+
+	dal_hw_generic_destruct(generic);
+
+	kfree(generic);
+
+	*ptr = NULL;
+}
+
+static enum gpio_result set_config(
+	struct hw_gpio_pin *ptr,
+	const struct gpio_config_data *config_data)
+{
+	struct hw_generic *generic = HW_GENERIC_FROM_BASE(ptr);
+
+	if (!config_data)
+		return GPIO_RESULT_INVALID_DATA;
+
+	REG_UPDATE_2(mux,
+		GENERIC_EN, config_data->config.generic_mux.enable_output_from_mux,
+		GENERIC_SEL, config_data->config.generic_mux.mux_select);
+
+	return GPIO_RESULT_OK;
+}
+
+static const struct hw_gpio_pin_funcs funcs = {
+	.destroy = dal_hw_generic_destroy,
+	.open = dal_hw_gpio_open,
+	.get_value = dal_hw_gpio_get_value,
+	.set_value = dal_hw_gpio_set_value,
+	.set_config = set_config,
+	.change_mode = dal_hw_gpio_change_mode,
+	.close = dal_hw_gpio_close,
+};
+
+static void dal_hw_generic_construct(
+	struct hw_generic *pin,
+	enum gpio_id id,
+	uint32_t en,
+	struct dc_context *ctx)
+{
+	dal_hw_gpio_construct(&pin->base, id, en, ctx);
+	pin->base.base.funcs = &funcs;
+}
+
+void dal_hw_generic_init(
+	struct hw_generic **hw_generic,
+	struct dc_context *ctx,
+	enum gpio_id id,
+	uint32_t en)
+{
+	if (en > GPIO_DDC_LINE_MAX) {
+		ASSERT_CRITICAL(false);
+		*hw_generic = NULL;
+	}
+
+	*hw_generic = kzalloc_obj(struct hw_generic);
+	if (!*hw_generic) {
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	dal_hw_generic_construct(*hw_generic, id, en, ctx);
+}
+
+
+struct hw_gpio_pin *dal_hw_generic_get_pin(struct gpio *gpio)
+{
+	struct hw_generic *hw_generic = dal_gpio_get_generic(gpio);
+
+	return &hw_generic->base.base;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/hw_generic.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_generic_H__
+#define __DAL_HW_generic_H__
+
+#include "generic_regs.h"
+#include "hw_gpio.h"
+
+struct hw_generic {
+	struct hw_gpio base;
+	const struct generic_registers *regs;
+	const struct generic_sh_mask *shifts;
+	const struct generic_sh_mask *masks;
+};
+
+#define HW_GENERIC_FROM_BASE(hw_gpio) \
+	container_of((HW_GPIO_FROM_BASE(hw_gpio)), struct hw_generic, base)
+
+void dal_hw_generic_init(
+	struct hw_generic **hw_generic,
+	struct dc_context *ctx,
+	enum gpio_id id,
+	uint32_t en);
+
+struct hw_gpio_pin *dal_hw_generic_get_pin(struct gpio *gpio);
+
+#endif

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/hw_gpio.c

@@ -0,0 +1,204 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "hw_gpio.h"
+
+#include "reg_helper.h"
+#include "gpio_regs.h"
+
+#undef FN
+#define FN(reg_name, field_name) \
+	gpio_reg_shift(gpio->regs->field_name ## _shift), gpio->regs->field_name ## _mask
+
+#define CTX \
+	gpio->base.ctx
+#define REG(reg)\
+	(gpio->regs->reg)
+
+static void store_registers(
+	struct hw_gpio *gpio)
+{
+	REG_GET(MASK_reg, MASK, &gpio->store.mask);
+	REG_GET(A_reg, A, &gpio->store.a);
+	REG_GET(EN_reg, EN, &gpio->store.en);
+	/* TODO store GPIO_MUX_CONTROL if we ever use it */
+}
+
+static void restore_registers(
+	struct hw_gpio *gpio)
+{
+	REG_UPDATE(MASK_reg, MASK, gpio->store.mask);
+	REG_UPDATE(A_reg, A, gpio->store.a);
+	REG_UPDATE(EN_reg, EN, gpio->store.en);
+	/* TODO restore GPIO_MUX_CONTROL if we ever use it */
+}
+
+bool dal_hw_gpio_open(
+	struct hw_gpio_pin *ptr,
+	enum gpio_mode mode)
+{
+	struct hw_gpio *pin = FROM_HW_GPIO_PIN(ptr);
+
+	store_registers(pin);
+
+	ptr->opened = (dal_hw_gpio_config_mode(pin, mode) == GPIO_RESULT_OK);
+
+	return ptr->opened;
+}
+
+enum gpio_result dal_hw_gpio_get_value(
+	const struct hw_gpio_pin *ptr,
+	uint32_t *value)
+{
+	const struct hw_gpio *gpio = FROM_HW_GPIO_PIN(ptr);
+
+	enum gpio_result result = GPIO_RESULT_OK;
+
+	switch (ptr->mode) {
+	case GPIO_MODE_INPUT:
+	case GPIO_MODE_OUTPUT:
+	case GPIO_MODE_HARDWARE:
+	case GPIO_MODE_FAST_OUTPUT:
+		REG_GET(Y_reg, Y, value);
+		break;
+	default:
+		result = GPIO_RESULT_NON_SPECIFIC_ERROR;
+	}
+
+	return result;
+}
+
+enum gpio_result dal_hw_gpio_set_value(
+	const struct hw_gpio_pin *ptr,
+	uint32_t value)
+{
+	struct hw_gpio *gpio = FROM_HW_GPIO_PIN(ptr);
+
+	/* This is the public interface
+	 * where the input comes from client, not shifted yet
+	 * (because client does not know the shifts). */
+
+	switch (ptr->mode) {
+	case GPIO_MODE_OUTPUT:
+		REG_UPDATE(A_reg, A, value);
+		return GPIO_RESULT_OK;
+	case GPIO_MODE_FAST_OUTPUT:
+		/* We use (EN) to faster switch (used in DDC GPIO).
+		 * So (A) is grounded, output is driven by (EN = 0)
+		 * to pull the line down (output == 0) and (EN=1)
+		 * then output is tri-state */
+		REG_UPDATE(EN_reg, EN, ~value);
+		return GPIO_RESULT_OK;
+	default:
+		return GPIO_RESULT_NON_SPECIFIC_ERROR;
+	}
+}
+
+enum gpio_result dal_hw_gpio_change_mode(
+	struct hw_gpio_pin *ptr,
+	enum gpio_mode mode)
+{
+	struct hw_gpio *pin = FROM_HW_GPIO_PIN(ptr);
+
+	return dal_hw_gpio_config_mode(pin, mode);
+}
+
+void dal_hw_gpio_close(
+	struct hw_gpio_pin *ptr)
+{
+	struct hw_gpio *pin = FROM_HW_GPIO_PIN(ptr);
+
+	restore_registers(pin);
+
+	ptr->mode = GPIO_MODE_UNKNOWN;
+	ptr->opened = false;
+}
+
+enum gpio_result dal_hw_gpio_config_mode(
+	struct hw_gpio *gpio,
+	enum gpio_mode mode)
+{
+	gpio->base.mode = mode;
+
+	switch (mode) {
+	case GPIO_MODE_INPUT:
+		/* turn off output enable, act as input pin;
+		 * program the pin as GPIO, mask out signal driven by HW */
+		REG_UPDATE(EN_reg, EN, 0);
+		REG_UPDATE(MASK_reg, MASK, 1);
+		return GPIO_RESULT_OK;
+	case GPIO_MODE_OUTPUT:
+		/* turn on output enable, act as output pin;
+		 * program the pin as GPIO, mask out signal driven by HW */
+		REG_UPDATE(A_reg, A, 0);
+		REG_UPDATE(MASK_reg, MASK, 1);
+		return GPIO_RESULT_OK;
+	case GPIO_MODE_FAST_OUTPUT:
+		/* grounding the A register then use the EN register bit
+		 * will have faster effect on the rise time */
+		REG_UPDATE(A_reg, A, 0);
+		REG_UPDATE(MASK_reg, MASK, 1);
+		return GPIO_RESULT_OK;
+	case GPIO_MODE_HARDWARE:
+		/* program the pin as tri-state, pin is driven by HW */
+		REG_UPDATE(MASK_reg, MASK, 0);
+		return GPIO_RESULT_OK;
+	case GPIO_MODE_INTERRUPT:
+		/* Interrupt mode supported only by HPD (IrqGpio) pins. */
+		REG_UPDATE(MASK_reg, MASK, 0);
+		return GPIO_RESULT_OK;
+	default:
+		return GPIO_RESULT_NON_SPECIFIC_ERROR;
+	}
+}
+
+void dal_hw_gpio_construct(
+	struct hw_gpio *pin,
+	enum gpio_id id,
+	uint32_t en,
+	struct dc_context *ctx)
+{
+	pin->base.ctx = ctx;
+	pin->base.id = id;
+	pin->base.en = en;
+	pin->base.mode = GPIO_MODE_UNKNOWN;
+	pin->base.opened = false;
+
+	pin->store.mask = 0;
+	pin->store.a = 0;
+	pin->store.en = 0;
+	pin->store.mux = 0;
+
+	pin->mux_supported = false;
+}
+
+void dal_hw_gpio_destruct(
+	struct hw_gpio *pin)
+{
+	(void)pin;
+	ASSERT(!pin->base.opened);
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/hw_gpio.h

@@ -0,0 +1,153 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_GPIO_H__
+#define __DAL_HW_GPIO_H__
+
+#include "gpio_regs.h"
+
+#define FROM_HW_GPIO_PIN(ptr) \
+	container_of((ptr), struct hw_gpio, base)
+
+struct addr_mask {
+	uint32_t addr;
+	uint32_t mask;
+};
+
+struct hw_gpio_pin {
+	const struct hw_gpio_pin_funcs *funcs;
+	enum gpio_id id;
+	uint32_t en;
+	enum gpio_mode mode;
+	bool opened;
+	struct dc_context *ctx;
+};
+
+struct hw_gpio_pin_funcs {
+	void (*destroy)(
+		struct hw_gpio_pin **ptr);
+	bool (*open)(
+		struct hw_gpio_pin *pin,
+		enum gpio_mode mode);
+	enum gpio_result (*get_value)(
+		const struct hw_gpio_pin *pin,
+		uint32_t *value);
+	enum gpio_result (*set_value)(
+		const struct hw_gpio_pin *pin,
+		uint32_t value);
+	enum gpio_result (*set_config)(
+		struct hw_gpio_pin *pin,
+		const struct gpio_config_data *config_data);
+	enum gpio_result (*change_mode)(
+		struct hw_gpio_pin *pin,
+		enum gpio_mode mode);
+	void (*close)(
+		struct hw_gpio_pin *pin);
+};
+
+
+struct hw_gpio;
+
+/* Register indices are represented by member variables
+ * and are to be filled in by constructors of derived classes.
+ * These members permit the use of common code
+ * for programming registers, where the sequence is the same
+ * but register sets are different.
+ * Some GPIOs have HW mux which allows to choose
+ * what is the source of the signal in HW mode */
+
+struct hw_gpio_pin_reg {
+	struct addr_mask DC_GPIO_DATA_MASK;
+	struct addr_mask DC_GPIO_DATA_A;
+	struct addr_mask DC_GPIO_DATA_EN;
+	struct addr_mask DC_GPIO_DATA_Y;
+};
+
+struct hw_gpio_mux_reg {
+	struct addr_mask GPIO_MUX_CONTROL;
+	struct addr_mask GPIO_MUX_STEREO_SEL;
+};
+
+struct hw_gpio {
+	struct hw_gpio_pin base;
+
+	/* variables to save register value */
+	struct {
+		uint32_t mask;
+		uint32_t a;
+		uint32_t en;
+		uint32_t mux;
+	} store;
+
+	/* GPIO MUX support */
+	bool mux_supported;
+	const struct gpio_registers *regs;
+};
+
+#define HW_GPIO_FROM_BASE(hw_gpio_pin) \
+	container_of((hw_gpio_pin), struct hw_gpio, base)
+
+void dal_hw_gpio_construct(
+	struct hw_gpio *pin,
+	enum gpio_id id,
+	uint32_t en,
+	struct dc_context *ctx);
+
+bool dal_hw_gpio_open(
+	struct hw_gpio_pin *pin,
+	enum gpio_mode mode);
+
+enum gpio_result dal_hw_gpio_get_value(
+	const struct hw_gpio_pin *pin,
+	uint32_t *value);
+
+enum gpio_result dal_hw_gpio_config_mode(
+	struct hw_gpio *pin,
+	enum gpio_mode mode);
+
+void dal_hw_gpio_destruct(
+	struct hw_gpio *pin);
+
+enum gpio_result dal_hw_gpio_set_value(
+	const struct hw_gpio_pin *ptr,
+	uint32_t value);
+
+enum gpio_result dal_hw_gpio_change_mode(
+	struct hw_gpio_pin *ptr,
+	enum gpio_mode mode);
+
+void dal_hw_gpio_close(
+	struct hw_gpio_pin *ptr);
+
+/*
+ * Shared helper used by all GPIO register helpers that pass a field shift
+ * (stored as uint32_t) into register functions that expect uint8_t.
+ */
+static inline uint8_t gpio_reg_shift(uint32_t shift)
+{
+	return (uint8_t)shift;
+}
+
+#endif

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/hw_hpd.c

@@ -0,0 +1,149 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+
+#include "include/gpio_interface.h"
+#include "include/gpio_types.h"
+#include "hw_gpio.h"
+#include "hw_hpd.h"
+
+#include "reg_helper.h"
+#include "hpd_regs.h"
+
+#undef FN
+#define FN(reg_name, field_name) \
+	gpio_reg_shift(hpd->shifts->field_name), hpd->masks->field_name
+
+#define CTX \
+	hpd->base.base.ctx
+#define REG(reg)\
+	(hpd->regs->reg)
+
+struct gpio;
+
+static void dal_hw_hpd_destruct(
+	struct hw_hpd *pin)
+{
+	dal_hw_gpio_destruct(&pin->base);
+}
+
+static void dal_hw_hpd_destroy(
+	struct hw_gpio_pin **ptr)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(*ptr);
+
+	dal_hw_hpd_destruct(hpd);
+
+	kfree(hpd);
+
+	*ptr = NULL;
+}
+
+static enum gpio_result dal_hw_hpd_get_value(
+	const struct hw_gpio_pin *ptr,
+	uint32_t *value)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(ptr);
+	uint32_t hpd_delayed = 0;
+
+	/* in Interrupt mode we ask for SENSE bit */
+
+	if (ptr->mode == GPIO_MODE_INTERRUPT) {
+
+		REG_GET(int_status,
+			DC_HPD_SENSE_DELAYED, &hpd_delayed);
+
+		*value = hpd_delayed;
+		return GPIO_RESULT_OK;
+	}
+
+	/* in any other modes, operate as normal GPIO */
+
+	return dal_hw_gpio_get_value(ptr, value);
+}
+
+static enum gpio_result dal_hw_hpd_set_config(
+	struct hw_gpio_pin *ptr,
+	const struct gpio_config_data *config_data)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(ptr);
+
+	if (!config_data)
+		return GPIO_RESULT_INVALID_DATA;
+
+	REG_UPDATE_2(toggle_filt_cntl,
+		DC_HPD_CONNECT_INT_DELAY, config_data->config.hpd.delay_on_connect / 10,
+		DC_HPD_DISCONNECT_INT_DELAY, config_data->config.hpd.delay_on_disconnect / 10);
+
+	return GPIO_RESULT_OK;
+}
+
+static const struct hw_gpio_pin_funcs funcs = {
+	.destroy = dal_hw_hpd_destroy,
+	.open = dal_hw_gpio_open,
+	.get_value = dal_hw_hpd_get_value,
+	.set_value = dal_hw_gpio_set_value,
+	.set_config = dal_hw_hpd_set_config,
+	.change_mode = dal_hw_gpio_change_mode,
+	.close = dal_hw_gpio_close,
+};
+
+static void dal_hw_hpd_construct(
+	struct hw_hpd *pin,
+	enum gpio_id id,
+	uint32_t en,
+	struct dc_context *ctx)
+{
+	dal_hw_gpio_construct(&pin->base, id, en, ctx);
+	pin->base.base.funcs = &funcs;
+}
+
+void dal_hw_hpd_init(
+	struct hw_hpd **hw_hpd,
+	struct dc_context *ctx,
+	enum gpio_id id,
+	uint32_t en)
+{
+	if (en > GPIO_DDC_LINE_MAX) {
+		ASSERT_CRITICAL(false);
+		*hw_hpd = NULL;
+	}
+
+	*hw_hpd = kzalloc_obj(struct hw_hpd);
+	if (!*hw_hpd) {
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	dal_hw_hpd_construct(*hw_hpd, id, en, ctx);
+}
+
+struct hw_gpio_pin *dal_hw_hpd_get_pin(struct gpio *gpio)
+{
+	struct hw_hpd *hw_hpd = dal_gpio_get_hpd(gpio);
+
+	return &hw_hpd->base.base;
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/hw_hpd.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_HPD_H__
+#define __DAL_HW_HPD_H__
+
+#include "hpd_regs.h"
+
+struct hw_hpd {
+	struct hw_gpio base;
+	const struct hpd_registers *regs;
+	const struct hpd_sh_mask *shifts;
+	const struct hpd_sh_mask *masks;
+};
+
+#define HW_HPD_FROM_BASE(hw_gpio) \
+	container_of((HW_GPIO_FROM_BASE(hw_gpio)), struct hw_hpd, base)
+
+void dal_hw_hpd_init(
+	struct hw_hpd **hw_hpd,
+	struct dc_context *ctx,
+	enum gpio_id id,
+	uint32_t en);
+
+struct hw_gpio_pin *dal_hw_hpd_get_pin(struct gpio *gpio);
+
+#endif

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/hw_translate.c

@@ -0,0 +1,135 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+#include "include/gpio_types.h"
+
+/*
+ * Header of this unit
+ */
+
+#include "hw_translate.h"
+
+/*
+ * Post-requisites: headers required by this unit
+ */
+
+#if defined(CONFIG_DRM_AMD_DC_SI)
+#include "dce60/hw_translate_dce60.h"
+#endif
+#include "dce80/hw_translate_dce80.h"
+#include "dce110/hw_translate_dce110.h"
+#include "dce120/hw_translate_dce120.h"
+#include "dcn10/hw_translate_dcn10.h"
+#include "dcn20/hw_translate_dcn20.h"
+#include "dcn21/hw_translate_dcn21.h"
+#include "dcn30/hw_translate_dcn30.h"
+#include "dcn315/hw_translate_dcn315.h"
+#include "dcn32/hw_translate_dcn32.h"
+#include "dcn401/hw_translate_dcn401.h"
+#include "dcn42/hw_translate_dcn42.h"
+#include "dcn42b/hw_translate_dcn42b.h"
+
+/*
+ * This unit
+ */
+
+bool dal_hw_translate_init(
+	struct hw_translate *translate,
+	enum dce_version dce_version,
+	enum dce_environment dce_environment)
+{
+	(void)dce_environment;
+	switch (dce_version) {
+#if defined(CONFIG_DRM_AMD_DC_SI)
+	case DCE_VERSION_6_0:
+	case DCE_VERSION_6_1:
+	case DCE_VERSION_6_4:
+		dal_hw_translate_dce60_init(translate);
+		return true;
+#endif
+	case DCE_VERSION_8_0:
+	case DCE_VERSION_8_1:
+	case DCE_VERSION_8_3:
+		dal_hw_translate_dce80_init(translate);
+		return true;
+	case DCE_VERSION_10_0:
+	case DCE_VERSION_11_0:
+	case DCE_VERSION_11_2:
+	case DCE_VERSION_11_22:
+		dal_hw_translate_dce110_init(translate);
+		return true;
+	case DCE_VERSION_12_0:
+	case DCE_VERSION_12_1:
+		dal_hw_translate_dce120_init(translate);
+		return true;
+	case DCN_VERSION_1_0:
+	case DCN_VERSION_1_01:
+		dal_hw_translate_dcn10_init(translate);
+		return true;
+	case DCN_VERSION_2_0:
+		dal_hw_translate_dcn20_init(translate);
+		return true;
+	case DCN_VERSION_2_01:
+	case DCN_VERSION_2_1:
+		dal_hw_translate_dcn21_init(translate);
+		return true;
+	case DCN_VERSION_3_0:
+	case DCN_VERSION_3_01:
+	case DCN_VERSION_3_02:
+	case DCN_VERSION_3_03:
+	case DCN_VERSION_3_1:
+	case DCN_VERSION_3_14:
+	case DCN_VERSION_3_16:
+		dal_hw_translate_dcn30_init(translate);
+		return true;
+	case DCN_VERSION_3_15:
+		dal_hw_translate_dcn315_init(translate);
+		return true;
+	case DCN_VERSION_3_2:
+	case DCN_VERSION_3_21:
+	case DCN_VERSION_3_5:
+	case DCN_VERSION_3_51:
+	case DCN_VERSION_3_6:
+		dal_hw_translate_dcn32_init(translate);
+		return true;
+	case DCN_VERSION_4_01:
+		dal_hw_translate_dcn401_init(translate);
+		return true;
+	case DCN_VERSION_4_2:
+		dal_hw_translate_dcn42_init(translate);
+		return true;
+	case DCN_VERSION_4_2B:
+		dal_hw_translate_dcn42b_init(translate);
+		return true;
+	default:
+		BREAK_TO_DEBUGGER();
+		return false;
+	}
+}

linux-7.2.3/drivers/gpu/drm/amd/display/dc/gpio/hw_translate.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_HW_TRANSLATE_H__
+#define __DAL_HW_TRANSLATE_H__
+
+struct hw_translate_funcs {
+	bool (*offset_to_id)(
+		uint32_t offset,
+		uint32_t mask,
+		enum gpio_id *id,
+		uint32_t *en);
+	bool (*id_to_offset)(
+		enum gpio_id id,
+		uint32_t en,
+		struct gpio_pin_info *info);
+};
+
+struct hw_translate {
+	const struct hw_translate_funcs *funcs;
+};
+
+bool dal_hw_translate_init(
+	struct hw_translate *translate,
+	enum dce_version dce_version,
+	enum dce_environment dce_environment);
+
+#endif