Resguardo inicial

linux-7.2.3/drivers/thermal/qcom/Kconfig

@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config QCOM_TSENS
+	tristate "Qualcomm TSENS Temperature Alarm"
+	depends on NVMEM_QCOM_QFPROM
+	depends on ARCH_QCOM || COMPILE_TEST
+	help
+	  This enables the thermal sysfs driver for the TSENS device. It shows
+	  up in Sysfs as a thermal zone with multiple trip points. Disabling the
+	  thermal zone device via the mode file results in disabling the sensor.
+	  Also able to set threshold temperature for both hot and cold and update
+	  when a threshold is reached.
+
+config QCOM_SPMI_ADC_TM5
+	tristate "Qualcomm SPMI PMIC Thermal Monitor ADC5"
+	depends on OF && SPMI && IIO
+	select REGMAP_SPMI
+	select QCOM_VADC_COMMON
+	help
+	  This enables the thermal driver for the ADC thermal monitoring
+	  device. It shows up as a thermal zone with multiple trip points.
+	  Thermal client sets threshold temperature for both warm and cool and
+	  gets updated when a threshold is reached.
+
+config QCOM_SPMI_TEMP_ALARM
+	tristate "Qualcomm SPMI PMIC Temperature Alarm"
+	depends on OF && SPMI && IIO
+	select REGMAP_SPMI
+	help
+	  This enables a thermal sysfs driver for Qualcomm plug-and-play (QPNP)
+	  PMIC devices. It shows up in sysfs as a thermal sensor with multiple
+	  trip points. The temperature reported by the thermal sensor reflects the
+	  real time die temperature if an ADC is present or an estimate of the
+	  temperature based upon the over temperature stage value.
+
+config QCOM_LMH
+	tristate "Qualcomm Limits Management Hardware"
+	depends on ARCH_QCOM || COMPILE_TEST
+	select QCOM_SCM
+	help
+	  This enables initialization of Qualcomm limits management
+	  hardware(LMh). LMh allows for hardware-enforced mitigation for cpus based on
+	  input from temperature and current sensors.  On many newer Qualcomm SoCs
+	  LMh is configured in the firmware and this feature need not be enabled.
+	  However, on certain SoCs like sdm845 LMh has to be configured from kernel.

linux-7.2.3/drivers/thermal/qcom/Makefile

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_QCOM_TSENS)	+= qcom_tsens.o
+
+qcom_tsens-y			+= tsens.o tsens-v2.o tsens-v1.o tsens-v0_1.o \
+				   tsens-8960.o
+obj-$(CONFIG_QCOM_SPMI_ADC_TM5)	+= qcom-spmi-adc-tm5.o
+obj-$(CONFIG_QCOM_SPMI_TEMP_ALARM)	+= qcom-spmi-temp-alarm.o
+obj-$(CONFIG_QCOM_LMH)		+= lmh.o

linux-7.2.3/drivers/thermal/qcom/lmh.c

@@ -0,0 +1,253 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright (C) 2021, Linaro Limited. All rights reserved.
+ */
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/irqdesc.h>
+#include <linux/irqdomain.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/of_platform.h>
+#include <linux/slab.h>
+#include <linux/firmware/qcom/qcom_scm.h>
+
+#define LMH_NODE_DCVS			0x44435653
+#define LMH_CLUSTER0_NODE_ID		0x6370302D
+#define LMH_CLUSTER1_NODE_ID		0x6370312D
+
+#define LMH_SUB_FN_THERMAL		0x54484D4C
+#define LMH_SUB_FN_CRNT			0x43524E54
+#define LMH_SUB_FN_REL			0x52454C00
+#define LMH_SUB_FN_BCL			0x42434C00
+
+#define LMH_ALGO_MODE_ENABLE		0x454E424C
+#define LMH_TH_HI_THRESHOLD		0x48494748
+#define LMH_TH_LOW_THRESHOLD		0x4C4F5700
+#define LMH_TH_ARM_THRESHOLD		0x41524D00
+
+#define LMH_REG_DCVS_INTR_CLR		0x8
+
+#define LMH_ENABLE_ALGOS		1
+
+struct lmh_hw_data {
+	void __iomem *base;
+	struct irq_domain *domain;
+	int irq;
+};
+
+static irqreturn_t lmh_handle_irq(int hw_irq, void *data)
+{
+	struct lmh_hw_data *lmh_data = data;
+	int irq = irq_find_mapping(lmh_data->domain, 0);
+
+	/* Call the cpufreq driver to handle the interrupt */
+	if (irq)
+		generic_handle_irq(irq);
+
+	return IRQ_HANDLED;
+}
+
+static void lmh_enable_interrupt(struct irq_data *d)
+{
+	struct lmh_hw_data *lmh_data = irq_data_get_irq_chip_data(d);
+
+	/* Clear the existing interrupt */
+	writel(0xff, lmh_data->base + LMH_REG_DCVS_INTR_CLR);
+	enable_irq(lmh_data->irq);
+}
+
+static void lmh_disable_interrupt(struct irq_data *d)
+{
+	struct lmh_hw_data *lmh_data = irq_data_get_irq_chip_data(d);
+
+	disable_irq_nosync(lmh_data->irq);
+}
+
+static struct irq_chip lmh_irq_chip = {
+	.name           = "lmh",
+	.irq_enable	= lmh_enable_interrupt,
+	.irq_disable	= lmh_disable_interrupt
+};
+
+static int lmh_irq_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw)
+{
+	struct lmh_hw_data *lmh_data = d->host_data;
+	static struct lock_class_key lmh_lock_key;
+	static struct lock_class_key lmh_request_key;
+
+	/*
+	 * This lock class tells lockdep that GPIO irqs are in a different
+	 * category than their parents, so it won't report false recursion.
+	 */
+	irq_set_lockdep_class(irq, &lmh_lock_key, &lmh_request_key);
+	irq_set_chip_and_handler(irq, &lmh_irq_chip, handle_simple_irq);
+	irq_set_chip_data(irq, lmh_data);
+
+	return 0;
+}
+
+static const struct irq_domain_ops lmh_irq_ops = {
+	.map = lmh_irq_map,
+	.xlate = irq_domain_xlate_onecell,
+};
+
+static int lmh_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct device_node *cpu_node;
+	struct lmh_hw_data *lmh_data;
+	int temp_low, temp_high, temp_arm, cpu_id, ret;
+	unsigned int enable_alg;
+	u32 node_id;
+
+	if (!qcom_scm_is_available())
+		return -EPROBE_DEFER;
+
+	lmh_data = devm_kzalloc(dev, sizeof(*lmh_data), GFP_KERNEL);
+	if (!lmh_data)
+		return -ENOMEM;
+
+	lmh_data->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(lmh_data->base))
+		return PTR_ERR(lmh_data->base);
+
+	cpu_node = of_parse_phandle(np, "cpus", 0);
+	if (!cpu_node)
+		return -EINVAL;
+	cpu_id = of_cpu_node_to_id(cpu_node);
+	of_node_put(cpu_node);
+
+	ret = of_property_read_u32(np, "qcom,lmh-temp-high-millicelsius", &temp_high);
+	if (ret) {
+		dev_err(dev, "missing qcom,lmh-temp-high-millicelsius property\n");
+		return ret;
+	}
+
+	ret = of_property_read_u32(np, "qcom,lmh-temp-low-millicelsius", &temp_low);
+	if (ret) {
+		dev_err(dev, "missing qcom,lmh-temp-low-millicelsius property\n");
+		return ret;
+	}
+
+	ret = of_property_read_u32(np, "qcom,lmh-temp-arm-millicelsius", &temp_arm);
+	if (ret) {
+		dev_err(dev, "missing qcom,lmh-temp-arm-millicelsius property\n");
+		return ret;
+	}
+
+	/*
+	 * Only sdm845 has lmh hardware currently enabled from hlos. If this is needed
+	 * for other platforms, revisit this to check if the <cpu-id, node-id> should be part
+	 * of a dt match table.
+	 */
+	if (cpu_id == 0) {
+		node_id = LMH_CLUSTER0_NODE_ID;
+	} else if (cpu_id == 4) {
+		node_id = LMH_CLUSTER1_NODE_ID;
+	} else {
+		dev_err(dev, "Wrong CPU id associated with LMh node\n");
+		return -EINVAL;
+	}
+
+	if (!qcom_scm_lmh_dcvsh_available())
+		return -EINVAL;
+
+	enable_alg = (uintptr_t)of_device_get_match_data(dev);
+
+	if (enable_alg) {
+		ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_CRNT, LMH_ALGO_MODE_ENABLE, 1,
+					 LMH_NODE_DCVS, node_id, 0);
+		if (ret)
+			dev_err(dev, "Error %d enabling current subfunction\n", ret);
+
+		ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_REL, LMH_ALGO_MODE_ENABLE, 1,
+					 LMH_NODE_DCVS, node_id, 0);
+		if (ret)
+			dev_err(dev, "Error %d enabling reliability subfunction\n", ret);
+
+		ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_BCL, LMH_ALGO_MODE_ENABLE, 1,
+					 LMH_NODE_DCVS, node_id, 0);
+		if (ret)
+			dev_err(dev, "Error %d enabling BCL subfunction\n", ret);
+
+		ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_THERMAL, LMH_ALGO_MODE_ENABLE, 1,
+					 LMH_NODE_DCVS, node_id, 0);
+		if (ret) {
+			dev_err(dev, "Error %d enabling thermal subfunction\n", ret);
+			return ret;
+		}
+
+		ret = qcom_scm_lmh_profile_change(0x1);
+		if (ret) {
+			dev_err(dev, "Error %d changing profile\n", ret);
+			return ret;
+		}
+	}
+
+	/* Set default thermal trips */
+	ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_THERMAL, LMH_TH_ARM_THRESHOLD, temp_arm,
+				 LMH_NODE_DCVS, node_id, 0);
+	if (ret) {
+		dev_err(dev, "Error setting thermal ARM threshold%d\n", ret);
+		return ret;
+	}
+
+	ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_THERMAL, LMH_TH_HI_THRESHOLD, temp_high,
+				 LMH_NODE_DCVS, node_id, 0);
+	if (ret) {
+		dev_err(dev, "Error setting thermal HI threshold%d\n", ret);
+		return ret;
+	}
+
+	ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_THERMAL, LMH_TH_LOW_THRESHOLD, temp_low,
+				 LMH_NODE_DCVS, node_id, 0);
+	if (ret) {
+		dev_err(dev, "Error setting thermal LOW threshold%d\n", ret);
+		return ret;
+	}
+
+	lmh_data->irq = platform_get_irq(pdev, 0);
+	lmh_data->domain = irq_domain_create_linear(dev_fwnode(dev), 1, &lmh_irq_ops, lmh_data);
+	if (!lmh_data->domain) {
+		dev_err(dev, "Error adding irq_domain\n");
+		return -EINVAL;
+	}
+
+	/* Disable the irq and let cpufreq enable it when ready to handle the interrupt */
+	irq_set_status_flags(lmh_data->irq, IRQ_NOAUTOEN);
+	ret = devm_request_irq(dev, lmh_data->irq, lmh_handle_irq,
+			       IRQF_NO_THREAD | IRQF_NO_SUSPEND,
+			       "lmh-irq", lmh_data);
+	if (ret) {
+		dev_err(dev, "Error %d registering irq %x\n", ret, lmh_data->irq);
+		irq_domain_remove(lmh_data->domain);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct of_device_id lmh_table[] = {
+	{ .compatible = "qcom,sc8180x-lmh", },
+	{ .compatible = "qcom,sdm845-lmh", .data = (void *)LMH_ENABLE_ALGOS},
+	{ .compatible = "qcom,sm8150-lmh", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, lmh_table);
+
+static struct platform_driver lmh_driver = {
+	.probe = lmh_probe,
+	.driver = {
+		.name = "qcom-lmh",
+		.of_match_table = lmh_table,
+		.suppress_bind_attrs = true,
+	},
+};
+module_platform_driver(lmh_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("QCOM LMh driver");

linux-7.2.3/drivers/thermal/qcom/qcom-spmi-temp-alarm.c

@@ -0,0 +1,906 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2011-2015, 2017, 2020, The Linux Foundation. All rights reserved.
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+#include <linux/bitfield.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/iio/consumer.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/thermal.h>
+
+#include "../thermal_hwmon.h"
+
+#define QPNP_TM_REG_DIG_MINOR		0x00
+#define QPNP_TM_REG_DIG_MAJOR		0x01
+#define QPNP_TM_REG_TYPE		0x04
+#define QPNP_TM_REG_SUBTYPE		0x05
+#define QPNP_TM_REG_STATUS		0x08
+#define QPNP_TM_REG_IRQ_STATUS		0x10
+#define QPNP_TM_REG_SHUTDOWN_CTRL1	0x40
+#define QPNP_TM_REG_ALARM_CTRL		0x46
+
+/* TEMP_DAC_STGx registers are only present for TEMP_GEN2 v2.0 */
+#define QPNP_TM_REG_TEMP_DAC_STG1	0x47
+#define QPNP_TM_REG_TEMP_DAC_STG2	0x48
+#define QPNP_TM_REG_TEMP_DAC_STG3	0x49
+#define QPNP_TM_REG_LITE_TEMP_CFG1	0x50
+#define QPNP_TM_REG_LITE_TEMP_CFG2	0x51
+
+#define QPNP_TM_TYPE			0x09
+#define QPNP_TM_SUBTYPE_GEN1		0x08
+#define QPNP_TM_SUBTYPE_GEN2		0x09
+#define QPNP_TM_SUBTYPE_LITE		0xC0
+
+#define STATUS_GEN1_STAGE_MASK		GENMASK(1, 0)
+#define STATUS_GEN2_STATE_MASK		GENMASK(6, 4)
+
+/* IRQ status only needed for TEMP_ALARM_LITE */
+#define IRQ_STATUS_MASK			BIT(0)
+
+#define SHUTDOWN_CTRL1_OVERRIDE_STAGE2	BIT(6)
+#define SHUTDOWN_CTRL1_THRESHOLD_MASK	GENMASK(1, 0)
+
+#define SHUTDOWN_CTRL1_RATE_25HZ	BIT(3)
+
+#define ALARM_CTRL_FORCE_ENABLE		BIT(7)
+
+#define LITE_TEMP_CFG_THRESHOLD_MASK	GENMASK(3, 2)
+
+#define THRESH_COUNT			4
+#define STAGE_COUNT			3
+
+enum overtemp_stage {
+	STAGE1 = 0,
+	STAGE2,
+	STAGE3,
+};
+
+/* Over-temperature trip point values in mC */
+static const long temp_map_gen1[THRESH_COUNT][STAGE_COUNT] = {
+	{ 105000, 125000, 145000 },
+	{ 110000, 130000, 150000 },
+	{ 115000, 135000, 155000 },
+	{ 120000, 140000, 160000 },
+};
+
+static const long temp_map_gen2_v1[THRESH_COUNT][STAGE_COUNT] = {
+	{  90000, 110000, 140000 },
+	{  95000, 115000, 145000 },
+	{ 100000, 120000, 150000 },
+	{ 105000, 125000, 155000 },
+};
+
+#define TEMP_THRESH_STEP		5000 /* Threshold step: 5 C */
+
+#define THRESH_MIN			0
+#define THRESH_MAX			3
+
+#define TEMP_STAGE_HYSTERESIS		2000
+
+/*
+ * For TEMP_GEN2 v2.0, TEMP_DAC_STG1/2/3 registers are used to set the threshold
+ * for each stage independently.
+ * TEMP_DAC_STG* = 0 --> 80 C
+ * Each 8 step increase in TEMP_DAC_STG* value corresponds to 5 C (5000 mC).
+ */
+#define TEMP_DAC_MIN			80000
+#define TEMP_DAC_SCALE_NUM		8
+#define TEMP_DAC_SCALE_DEN		5000
+
+#define TEMP_DAC_TEMP_TO_REG(temp) \
+	(((temp) - TEMP_DAC_MIN) * TEMP_DAC_SCALE_NUM / TEMP_DAC_SCALE_DEN)
+#define TEMP_DAC_REG_TO_TEMP(reg) \
+	(TEMP_DAC_MIN + (reg) * TEMP_DAC_SCALE_DEN / TEMP_DAC_SCALE_NUM)
+
+static const long temp_dac_max[STAGE_COUNT] = {
+	119375, 159375, 159375
+};
+
+/*
+ * TEMP_ALARM_LITE has two stages: warning and shutdown with independently
+ * configured threshold temperatures.
+ */
+
+static const long temp_lite_warning_map[THRESH_COUNT] = {
+	115000, 125000, 135000, 145000
+};
+
+static const long temp_lite_shutdown_map[THRESH_COUNT] = {
+	135000, 145000, 160000, 175000
+};
+
+/* Temperature in Milli Celsius reported during stage 0 if no ADC is present */
+#define DEFAULT_TEMP			37000
+
+struct qpnp_tm_chip;
+
+struct spmi_temp_alarm_data {
+	const struct thermal_zone_device_ops *ops;
+	const long (*temp_map)[THRESH_COUNT][STAGE_COUNT];
+	int (*sync_thresholds)(struct qpnp_tm_chip *chip);
+	int (*get_temp_stage)(struct qpnp_tm_chip *chip);
+	int (*configure_trip_temps)(struct qpnp_tm_chip *chip);
+};
+
+struct qpnp_tm_chip {
+	struct regmap			*map;
+	struct device			*dev;
+	struct thermal_zone_device	*tz_dev;
+	const struct spmi_temp_alarm_data *data;
+	unsigned int			subtype;
+	long				temp;
+	unsigned int			stage;
+	unsigned int			base;
+	unsigned int			ntrips;
+	/* protects .thresh, .stage and chip registers */
+	struct mutex			lock;
+	bool				initialized;
+	bool				require_stage2_shutdown;
+	long				temp_thresh_map[STAGE_COUNT];
+
+	struct iio_channel		*adc;
+};
+
+/* This array maps from GEN2 alarm state to GEN1 alarm stage */
+static const unsigned int alarm_state_map[8] = {0, 1, 1, 2, 2, 3, 3, 3};
+
+static int qpnp_tm_read(struct qpnp_tm_chip *chip, u16 addr, u8 *data)
+{
+	unsigned int val;
+	int ret;
+
+	ret = regmap_read(chip->map, chip->base + addr, &val);
+	if (ret < 0)
+		return ret;
+
+	*data = val;
+	return 0;
+}
+
+static int qpnp_tm_write(struct qpnp_tm_chip *chip, u16 addr, u8 data)
+{
+	return regmap_write(chip->map, chip->base + addr, data);
+}
+
+/**
+ * qpnp_tm_decode_temp() - return temperature in mC corresponding to the
+ *		specified over-temperature stage
+ * @chip:		Pointer to the qpnp_tm chip
+ * @stage:		Over-temperature stage
+ *
+ * Return: temperature in mC
+ */
+static long qpnp_tm_decode_temp(struct qpnp_tm_chip *chip, unsigned int stage)
+{
+	if (stage == 0 || stage > STAGE_COUNT)
+		return 0;
+
+	return chip->temp_thresh_map[stage - 1];
+}
+
+/**
+ * qpnp_tm_gen1_get_temp_stage() - return over-temperature stage
+ * @chip:		Pointer to the qpnp_tm chip
+ *
+ * Return: stage on success, or errno on failure.
+ */
+static int qpnp_tm_gen1_get_temp_stage(struct qpnp_tm_chip *chip)
+{
+	int ret;
+	u8 reg;
+
+	ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
+	if (ret < 0)
+		return ret;
+
+	return FIELD_GET(STATUS_GEN1_STAGE_MASK, reg);
+}
+
+/**
+ * qpnp_tm_gen2_get_temp_stage() - return over-temperature stage
+ * @chip:		Pointer to the qpnp_tm chip
+ *
+ * Return: stage on success, or errno on failure.
+ */
+static int qpnp_tm_gen2_get_temp_stage(struct qpnp_tm_chip *chip)
+{
+	int ret;
+	u8 reg;
+
+	ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
+	if (ret < 0)
+		return ret;
+
+	ret = FIELD_GET(STATUS_GEN2_STATE_MASK, reg);
+
+	return alarm_state_map[ret];
+}
+
+/**
+ * qpnp_tm_lite_get_temp_stage() - return over-temperature stage
+ * @chip:		Pointer to the qpnp_tm chip
+ *
+ * Return: alarm interrupt state on success, or errno on failure.
+ */
+static int qpnp_tm_lite_get_temp_stage(struct qpnp_tm_chip *chip)
+{
+	u8 reg = 0;
+	int ret;
+
+	ret = qpnp_tm_read(chip, QPNP_TM_REG_IRQ_STATUS, &reg);
+	if (ret < 0)
+		return ret;
+
+	return FIELD_GET(IRQ_STATUS_MASK, reg);
+}
+
+/*
+ * This function updates the internal temp value based on the
+ * current thermal stage and threshold as well as the previous stage
+ */
+static int qpnp_tm_update_temp_no_adc(struct qpnp_tm_chip *chip)
+{
+	unsigned int stage_new, stage_old;
+	int ret;
+
+	WARN_ON(!mutex_is_locked(&chip->lock));
+
+	ret = chip->data->get_temp_stage(chip);
+	if (ret < 0)
+		return ret;
+	stage_new = ret;
+	stage_old = chip->stage;
+
+	if (stage_new > stage_old) {
+		/* increasing stage, use lower bound */
+		chip->temp = qpnp_tm_decode_temp(chip, stage_new)
+				+ TEMP_STAGE_HYSTERESIS;
+	} else if (stage_new < stage_old) {
+		/* decreasing stage, use upper bound */
+		chip->temp = qpnp_tm_decode_temp(chip, stage_new + 1)
+				- TEMP_STAGE_HYSTERESIS;
+	}
+
+	chip->stage = stage_new;
+
+	return 0;
+}
+
+static int qpnp_tm_get_temp(struct thermal_zone_device *tz, int *temp)
+{
+	struct qpnp_tm_chip *chip = thermal_zone_device_priv(tz);
+	int ret, mili_celsius;
+
+	if (!temp)
+		return -EINVAL;
+
+	if (!chip->initialized) {
+		*temp = DEFAULT_TEMP;
+		return 0;
+	}
+
+	if (!chip->adc) {
+		mutex_lock(&chip->lock);
+		ret = qpnp_tm_update_temp_no_adc(chip);
+		mutex_unlock(&chip->lock);
+		if (ret < 0)
+			return ret;
+	} else {
+		ret = iio_read_channel_processed(chip->adc, &mili_celsius);
+		if (ret < 0)
+			return ret;
+
+		chip->temp = mili_celsius;
+	}
+
+	*temp = chip->temp;
+
+	return 0;
+}
+
+static int qpnp_tm_update_critical_trip_temp(struct qpnp_tm_chip *chip,
+					     int temp)
+{
+	long stage2_threshold_min = (*chip->data->temp_map)[THRESH_MIN][STAGE2];
+	long stage2_threshold_max = (*chip->data->temp_map)[THRESH_MAX][STAGE2];
+	bool disable_stage2_shutdown = false;
+	u8 reg, threshold;
+
+	WARN_ON(!mutex_is_locked(&chip->lock));
+
+	/*
+	 * Default: Stage 2 and Stage 3 shutdown enabled, thresholds at
+	 * lowest threshold set, monitoring at 25Hz
+	 */
+	reg = SHUTDOWN_CTRL1_RATE_25HZ;
+
+	if (temp == THERMAL_TEMP_INVALID ||
+	    temp < stage2_threshold_min) {
+		threshold = THRESH_MIN;
+		goto skip;
+	}
+
+	if (temp <= stage2_threshold_max) {
+		threshold = THRESH_MAX -
+			((stage2_threshold_max - temp) /
+			 TEMP_THRESH_STEP);
+		disable_stage2_shutdown = true;
+	} else {
+		threshold = THRESH_MAX;
+
+		if (chip->adc)
+			disable_stage2_shutdown = true;
+		else
+			dev_warn(chip->dev,
+				 "No ADC is configured and critical temperature %d mC is above the maximum stage 2 threshold of %ld mC! Configuring stage 2 shutdown at %ld mC.\n",
+				 temp, stage2_threshold_max, stage2_threshold_max);
+	}
+
+skip:
+	memcpy(chip->temp_thresh_map, chip->data->temp_map[threshold],
+		sizeof(chip->temp_thresh_map));
+	reg |= threshold;
+	if (disable_stage2_shutdown && !chip->require_stage2_shutdown)
+		reg |= SHUTDOWN_CTRL1_OVERRIDE_STAGE2;
+
+	return qpnp_tm_write(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, reg);
+}
+
+static int qpnp_tm_set_trip_temp(struct thermal_zone_device *tz,
+				 const struct thermal_trip *trip, int temp)
+{
+	struct qpnp_tm_chip *chip = thermal_zone_device_priv(tz);
+	int ret;
+
+	if (trip->type != THERMAL_TRIP_CRITICAL)
+		return 0;
+
+	mutex_lock(&chip->lock);
+	ret = qpnp_tm_update_critical_trip_temp(chip, temp);
+	mutex_unlock(&chip->lock);
+
+	return ret;
+}
+
+static const struct thermal_zone_device_ops qpnp_tm_sensor_ops = {
+	.get_temp = qpnp_tm_get_temp,
+	.set_trip_temp = qpnp_tm_set_trip_temp,
+};
+
+static int qpnp_tm_gen2_rev2_set_temp_thresh(struct qpnp_tm_chip *chip, unsigned int trip, int temp)
+{
+	int ret, temp_cfg;
+	u8 reg;
+
+	WARN_ON(!mutex_is_locked(&chip->lock));
+
+	if (trip >= STAGE_COUNT) {
+		dev_err(chip->dev, "invalid TEMP_DAC trip = %d\n", trip);
+		return -EINVAL;
+	} else if (temp < TEMP_DAC_MIN || temp > temp_dac_max[trip]) {
+		dev_err(chip->dev, "invalid TEMP_DAC temp = %d\n", temp);
+		return -EINVAL;
+	}
+
+	reg = TEMP_DAC_TEMP_TO_REG(temp);
+	temp_cfg = TEMP_DAC_REG_TO_TEMP(reg);
+
+	ret = qpnp_tm_write(chip, QPNP_TM_REG_TEMP_DAC_STG1 + trip, reg);
+	if (ret < 0) {
+		dev_err(chip->dev, "TEMP_DAC_STG write failed, ret=%d\n", ret);
+		return ret;
+	}
+
+	chip->temp_thresh_map[trip] = temp_cfg;
+
+	return 0;
+}
+
+static int qpnp_tm_gen2_rev2_set_trip_temp(struct thermal_zone_device *tz,
+					   const struct thermal_trip *trip, int temp)
+{
+	unsigned int trip_index = THERMAL_TRIP_PRIV_TO_INT(trip->priv);
+	struct qpnp_tm_chip *chip = thermal_zone_device_priv(tz);
+	int ret;
+
+	mutex_lock(&chip->lock);
+	ret = qpnp_tm_gen2_rev2_set_temp_thresh(chip, trip_index, temp);
+	mutex_unlock(&chip->lock);
+
+	return ret;
+}
+
+static const struct thermal_zone_device_ops qpnp_tm_gen2_rev2_sensor_ops = {
+	.get_temp = qpnp_tm_get_temp,
+	.set_trip_temp = qpnp_tm_gen2_rev2_set_trip_temp,
+};
+
+static int qpnp_tm_lite_set_temp_thresh(struct qpnp_tm_chip *chip, unsigned int trip, int temp)
+{
+	int ret, temp_cfg, i;
+	const long *temp_map;
+	u8 reg, thresh;
+	u16 addr;
+
+	WARN_ON(!mutex_is_locked(&chip->lock));
+
+	if (trip >= STAGE_COUNT) {
+		dev_err(chip->dev, "invalid TEMP_LITE trip = %d\n", trip);
+		return -EINVAL;
+	}
+
+	switch (trip) {
+	case 0:
+		temp_map = temp_lite_warning_map;
+		addr = QPNP_TM_REG_LITE_TEMP_CFG1;
+		break;
+	case 1:
+		/*
+		 * The second trip point is purely in software to facilitate
+		 * a controlled shutdown after the warning threshold is crossed
+		 * but before the automatic hardware shutdown threshold is
+		 * crossed.
+		 */
+		return 0;
+	case 2:
+		temp_map = temp_lite_shutdown_map;
+		addr = QPNP_TM_REG_LITE_TEMP_CFG2;
+		break;
+	default:
+		return 0;
+	}
+
+	if (temp < temp_map[THRESH_MIN] || temp > temp_map[THRESH_MAX]) {
+		dev_err(chip->dev, "invalid TEMP_LITE temp = %d\n", temp);
+		return -EINVAL;
+	}
+
+	thresh = 0;
+	temp_cfg = temp_map[thresh];
+	for (i = THRESH_MAX; i >= THRESH_MIN; i--) {
+		if (temp >= temp_map[i]) {
+			thresh = i;
+			temp_cfg = temp_map[i];
+			break;
+		}
+	}
+
+	if (temp_cfg == chip->temp_thresh_map[trip])
+		return 0;
+
+	ret = qpnp_tm_read(chip, addr, &reg);
+	if (ret < 0) {
+		dev_err(chip->dev, "LITE_TEMP_CFG read failed, ret=%d\n", ret);
+		return ret;
+	}
+
+	reg &= ~LITE_TEMP_CFG_THRESHOLD_MASK;
+	reg |= FIELD_PREP(LITE_TEMP_CFG_THRESHOLD_MASK, thresh);
+
+	ret = qpnp_tm_write(chip, addr, reg);
+	if (ret < 0) {
+		dev_err(chip->dev, "LITE_TEMP_CFG write failed, ret=%d\n", ret);
+		return ret;
+	}
+
+	chip->temp_thresh_map[trip] = temp_cfg;
+
+	return 0;
+}
+
+static int qpnp_tm_lite_set_trip_temp(struct thermal_zone_device *tz,
+				      const struct thermal_trip *trip, int temp)
+{
+	unsigned int trip_index = THERMAL_TRIP_PRIV_TO_INT(trip->priv);
+	struct qpnp_tm_chip *chip = thermal_zone_device_priv(tz);
+	int ret;
+
+	mutex_lock(&chip->lock);
+	ret = qpnp_tm_lite_set_temp_thresh(chip, trip_index, temp);
+	mutex_unlock(&chip->lock);
+
+	return ret;
+}
+
+static const struct thermal_zone_device_ops qpnp_tm_lite_sensor_ops = {
+	.get_temp = qpnp_tm_get_temp,
+	.set_trip_temp = qpnp_tm_lite_set_trip_temp,
+};
+
+static irqreturn_t qpnp_tm_isr(int irq, void *data)
+{
+	struct qpnp_tm_chip *chip = data;
+
+	thermal_zone_device_update(chip->tz_dev, THERMAL_EVENT_UNSPECIFIED);
+
+	return IRQ_HANDLED;
+}
+
+/* Read the hardware default stage threshold temperatures */
+static int qpnp_tm_sync_thresholds(struct qpnp_tm_chip *chip)
+{
+	u8 reg, threshold;
+	int ret;
+
+	ret = qpnp_tm_read(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, &reg);
+	if (ret < 0)
+		return ret;
+
+	threshold = reg & SHUTDOWN_CTRL1_THRESHOLD_MASK;
+	memcpy(chip->temp_thresh_map, chip->data->temp_map[threshold],
+		sizeof(chip->temp_thresh_map));
+
+	return ret;
+}
+
+static int qpnp_tm_configure_trip_temp(struct qpnp_tm_chip *chip)
+{
+	int crit_temp, ret;
+
+	ret = thermal_zone_get_crit_temp(chip->tz_dev, &crit_temp);
+	if (ret)
+		crit_temp = THERMAL_TEMP_INVALID;
+
+	mutex_lock(&chip->lock);
+	ret = qpnp_tm_update_critical_trip_temp(chip, crit_temp);
+	mutex_unlock(&chip->lock);
+
+	return ret;
+}
+
+/* Configure TEMP_DAC registers based on DT thermal_zone trips */
+static int qpnp_tm_gen2_rev2_configure_trip_temps_cb(struct thermal_trip *trip, void *data)
+{
+	struct qpnp_tm_chip *chip = data;
+	int ret;
+
+	mutex_lock(&chip->lock);
+	trip->priv = THERMAL_INT_TO_TRIP_PRIV(chip->ntrips);
+	ret = qpnp_tm_gen2_rev2_set_temp_thresh(chip, chip->ntrips, trip->temperature);
+	chip->ntrips++;
+	mutex_unlock(&chip->lock);
+
+	return ret;
+}
+
+static int qpnp_tm_gen2_rev2_configure_trip_temps(struct qpnp_tm_chip *chip)
+{
+	int ret, i;
+
+	ret = thermal_zone_for_each_trip(chip->tz_dev,
+					 qpnp_tm_gen2_rev2_configure_trip_temps_cb, chip);
+	if (ret < 0)
+		return ret;
+
+	/* Verify that trips are strictly increasing. */
+	for (i = 1; i < STAGE_COUNT; i++) {
+		if (chip->temp_thresh_map[i] <= chip->temp_thresh_map[i - 1]) {
+			dev_err(chip->dev, "Threshold %d=%ld <= threshold %d=%ld\n",
+				i, chip->temp_thresh_map[i], i - 1,
+				chip->temp_thresh_map[i - 1]);
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+/* Read the hardware default TEMP_DAC stage threshold temperatures */
+static int qpnp_tm_gen2_rev2_sync_thresholds(struct qpnp_tm_chip *chip)
+{
+	int ret, i;
+	u8 reg = 0;
+
+	for (i = 0; i < STAGE_COUNT; i++) {
+		ret = qpnp_tm_read(chip, QPNP_TM_REG_TEMP_DAC_STG1 + i, &reg);
+		if (ret < 0)
+			return ret;
+
+		chip->temp_thresh_map[i] = TEMP_DAC_REG_TO_TEMP(reg);
+	}
+
+	return 0;
+}
+
+/* Configure TEMP_LITE registers based on DT thermal_zone trips */
+static int qpnp_tm_lite_configure_trip_temps_cb(struct thermal_trip *trip, void *data)
+{
+	struct qpnp_tm_chip *chip = data;
+	int ret;
+
+	mutex_lock(&chip->lock);
+	trip->priv = THERMAL_INT_TO_TRIP_PRIV(chip->ntrips);
+	ret = qpnp_tm_lite_set_temp_thresh(chip, chip->ntrips, trip->temperature);
+	chip->ntrips++;
+	mutex_unlock(&chip->lock);
+
+	return ret;
+}
+
+static int qpnp_tm_lite_configure_trip_temps(struct qpnp_tm_chip *chip)
+{
+	int ret;
+
+	ret = thermal_zone_for_each_trip(chip->tz_dev, qpnp_tm_lite_configure_trip_temps_cb, chip);
+	if (ret < 0)
+		return ret;
+
+	/* Verify that trips are strictly increasing. */
+	if (chip->temp_thresh_map[2] <= chip->temp_thresh_map[0]) {
+		dev_err(chip->dev, "Threshold 2=%ld <= threshold 0=%ld\n",
+			chip->temp_thresh_map[2], chip->temp_thresh_map[0]);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/* Read the hardware default TEMP_LITE stage threshold temperatures */
+static int qpnp_tm_lite_sync_thresholds(struct qpnp_tm_chip *chip)
+{
+	int ret, thresh;
+	u8 reg = 0;
+
+	/*
+	 * Store the warning trip temp in temp_thresh_map[0] and the shutdown trip
+	 * temp in temp_thresh_map[2].  The second trip point is purely in software
+	 * to facilitate a controlled shutdown after the warning threshold is
+	 * crossed but before the automatic hardware shutdown threshold is
+	 * crossed.  Thus, there is no register to read for the second trip
+	 * point.
+	 */
+	ret = qpnp_tm_read(chip, QPNP_TM_REG_LITE_TEMP_CFG1, &reg);
+	if (ret < 0)
+		return ret;
+
+	thresh = FIELD_GET(LITE_TEMP_CFG_THRESHOLD_MASK, reg);
+	chip->temp_thresh_map[0] = temp_lite_warning_map[thresh];
+
+	ret = qpnp_tm_read(chip, QPNP_TM_REG_LITE_TEMP_CFG2, &reg);
+	if (ret < 0)
+		return ret;
+
+	thresh = FIELD_GET(LITE_TEMP_CFG_THRESHOLD_MASK, reg);
+	chip->temp_thresh_map[2] = temp_lite_shutdown_map[thresh];
+
+	return 0;
+}
+
+static const struct spmi_temp_alarm_data spmi_temp_alarm_data = {
+	.ops = &qpnp_tm_sensor_ops,
+	.temp_map = &temp_map_gen1,
+	.sync_thresholds = qpnp_tm_sync_thresholds,
+	.configure_trip_temps = qpnp_tm_configure_trip_temp,
+	.get_temp_stage = qpnp_tm_gen1_get_temp_stage,
+};
+
+static const struct spmi_temp_alarm_data spmi_temp_alarm_gen2_data = {
+	.ops = &qpnp_tm_sensor_ops,
+	.temp_map = &temp_map_gen1,
+	.sync_thresholds = qpnp_tm_sync_thresholds,
+	.configure_trip_temps = qpnp_tm_configure_trip_temp,
+	.get_temp_stage = qpnp_tm_gen2_get_temp_stage,
+};
+
+static const struct spmi_temp_alarm_data spmi_temp_alarm_gen2_rev1_data = {
+	.ops = &qpnp_tm_sensor_ops,
+	.temp_map = &temp_map_gen2_v1,
+	.sync_thresholds = qpnp_tm_sync_thresholds,
+	.configure_trip_temps = qpnp_tm_configure_trip_temp,
+	.get_temp_stage = qpnp_tm_gen2_get_temp_stage,
+};
+
+static const struct spmi_temp_alarm_data spmi_temp_alarm_gen2_rev2_data = {
+	.ops = &qpnp_tm_gen2_rev2_sensor_ops,
+	.sync_thresholds = qpnp_tm_gen2_rev2_sync_thresholds,
+	.configure_trip_temps = qpnp_tm_gen2_rev2_configure_trip_temps,
+	.get_temp_stage = qpnp_tm_gen2_get_temp_stage,
+};
+
+static const struct spmi_temp_alarm_data spmi_temp_alarm_lite_data = {
+	.ops = &qpnp_tm_lite_sensor_ops,
+	.sync_thresholds = qpnp_tm_lite_sync_thresholds,
+	.configure_trip_temps = qpnp_tm_lite_configure_trip_temps,
+	.get_temp_stage = qpnp_tm_lite_get_temp_stage,
+};
+
+/*
+ * This function initializes the internal temp value based on only the
+ * current thermal stage and threshold.
+ */
+static int qpnp_tm_threshold_init(struct qpnp_tm_chip *chip)
+{
+	int ret;
+
+	ret = chip->data->sync_thresholds(chip);
+	if (ret < 0)
+		return ret;
+
+	ret = chip->data->get_temp_stage(chip);
+	if (ret < 0)
+		return ret;
+	chip->stage = ret;
+	chip->temp = DEFAULT_TEMP;
+
+	if (chip->stage)
+		chip->temp = qpnp_tm_decode_temp(chip, chip->stage);
+
+	return ret;
+}
+
+/* This function initializes threshold control and disables shutdown override. */
+static int qpnp_tm_init(struct qpnp_tm_chip *chip)
+{
+	int ret;
+	u8 reg;
+
+	ret = chip->data->configure_trip_temps(chip);
+	if (ret < 0)
+		return ret;
+
+	/* Enable the thermal alarm PMIC module in always-on mode. */
+	reg = ALARM_CTRL_FORCE_ENABLE;
+	ret = qpnp_tm_write(chip, QPNP_TM_REG_ALARM_CTRL, reg);
+
+	chip->initialized = true;
+
+	return ret;
+}
+
+static int qpnp_tm_probe(struct platform_device *pdev)
+{
+	struct qpnp_tm_chip *chip;
+	struct device_node *node;
+	u8 type, subtype, dig_major, dig_minor;
+	u32 res, dig_revision;
+	int ret, irq;
+
+	node = pdev->dev.of_node;
+
+	chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	chip->dev = &pdev->dev;
+
+	mutex_init(&chip->lock);
+
+	chip->map = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!chip->map)
+		return -ENXIO;
+
+	ret = of_property_read_u32(node, "reg", &res);
+	if (ret < 0)
+		return ret;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	/* ADC based measurements are optional */
+	chip->adc = devm_iio_channel_get(&pdev->dev, "thermal");
+	if (IS_ERR(chip->adc)) {
+		ret = PTR_ERR(chip->adc);
+		chip->adc = NULL;
+		if (ret == -EPROBE_DEFER)
+			return ret;
+	}
+
+	chip->base = res;
+
+	ret = qpnp_tm_read(chip, QPNP_TM_REG_TYPE, &type);
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret,
+				     "could not read type\n");
+
+	ret = qpnp_tm_read(chip, QPNP_TM_REG_SUBTYPE, &subtype);
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret,
+				     "could not read subtype\n");
+
+	ret = qpnp_tm_read(chip, QPNP_TM_REG_DIG_MAJOR, &dig_major);
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret,
+				     "could not read dig_major\n");
+
+	ret = qpnp_tm_read(chip, QPNP_TM_REG_DIG_MINOR, &dig_minor);
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret,
+				     "could not read dig_minor\n");
+
+	if (type != QPNP_TM_TYPE || (subtype != QPNP_TM_SUBTYPE_GEN1
+				     && subtype != QPNP_TM_SUBTYPE_GEN2
+				     && subtype != QPNP_TM_SUBTYPE_LITE)) {
+		dev_err(&pdev->dev, "invalid type 0x%02x or subtype 0x%02x\n",
+			type, subtype);
+		return -ENODEV;
+	}
+
+	chip->subtype = subtype;
+	if (subtype == QPNP_TM_SUBTYPE_GEN1)
+		chip->data = &spmi_temp_alarm_data;
+	else if (subtype == QPNP_TM_SUBTYPE_GEN2 && dig_major == 0)
+		chip->data = &spmi_temp_alarm_gen2_data;
+	else if (subtype == QPNP_TM_SUBTYPE_GEN2 && dig_major == 1)
+		chip->data = &spmi_temp_alarm_gen2_rev1_data;
+	else if (subtype == QPNP_TM_SUBTYPE_GEN2 && dig_major >= 2)
+		chip->data = &spmi_temp_alarm_gen2_rev2_data;
+	else if (subtype == QPNP_TM_SUBTYPE_LITE)
+		chip->data = &spmi_temp_alarm_lite_data;
+	else
+		return -ENODEV;
+
+	if (chip->subtype == QPNP_TM_SUBTYPE_GEN2) {
+		dig_revision = (dig_major << 8) | dig_minor;
+		/*
+		 * Check if stage 2 automatic partial shutdown must remain
+		 * enabled to avoid potential repeated faults upon reaching
+		 * over-temperature stage 3.
+		 */
+		switch (dig_revision) {
+		case 0x0001:
+		case 0x0002:
+		case 0x0100:
+		case 0x0101:
+			chip->require_stage2_shutdown = true;
+			break;
+		}
+	}
+
+	ret = qpnp_tm_threshold_init(chip);
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret, "threshold init failed\n");
+
+	/*
+	 * Register the sensor before initializing the hardware to be able to
+	 * read the trip points. get_temp() returns the default temperature
+	 * before the hardware initialization is completed.
+	 */
+	chip->tz_dev = devm_thermal_of_zone_register(
+		&pdev->dev, 0, chip, chip->data->ops);
+	if (IS_ERR(chip->tz_dev))
+		return dev_err_probe(&pdev->dev, PTR_ERR(chip->tz_dev),
+				     "failed to register sensor\n");
+
+	ret = qpnp_tm_init(chip);
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret, "init failed\n");
+
+	devm_thermal_add_hwmon_sysfs(&pdev->dev, chip->tz_dev);
+
+	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, qpnp_tm_isr,
+					IRQF_ONESHOT, node->name, chip);
+	if (ret < 0)
+		return ret;
+
+	thermal_zone_device_update(chip->tz_dev, THERMAL_EVENT_UNSPECIFIED);
+
+	return 0;
+}
+
+static const struct of_device_id qpnp_tm_match_table[] = {
+	{ .compatible = "qcom,spmi-temp-alarm" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, qpnp_tm_match_table);
+
+static struct platform_driver qpnp_tm_driver = {
+	.driver = {
+		.name = "spmi-temp-alarm",
+		.of_match_table = qpnp_tm_match_table,
+	},
+	.probe  = qpnp_tm_probe,
+};
+module_platform_driver(qpnp_tm_driver);
+
+MODULE_ALIAS("platform:spmi-temp-alarm");
+MODULE_DESCRIPTION("QPNP PMIC Temperature Alarm driver");
+MODULE_LICENSE("GPL v2");

linux-7.2.3/drivers/thermal/qcom/tsens-8960.c

@@ -0,0 +1,285 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/regmap.h>
+#include <linux/thermal.h>
+#include "tsens.h"
+
+#define CONFIG_ADDR		0x3640
+#define CONFIG_ADDR_8660	0x3620
+/* CONFIG_ADDR bitmasks */
+#define CONFIG			0x9b
+#define CONFIG_MASK		0xf
+#define CONFIG_8660		1
+#define CONFIG_SHIFT_8660	28
+#define CONFIG_MASK_8660	(3 << CONFIG_SHIFT_8660)
+
+#define CNTL_ADDR		0x3620
+/* CNTL_ADDR bitmasks */
+#define EN			BIT(0)
+#define SW_RST			BIT(1)
+
+#define MEASURE_PERIOD		BIT(18)
+#define SLP_CLK_ENA		BIT(26)
+#define SLP_CLK_ENA_8660	BIT(24)
+#define SENSOR0_SHIFT		3
+
+#define THRESHOLD_ADDR		0x3624
+
+#define INT_STATUS_ADDR		0x363c
+
+#define S0_STATUS_OFF		0x3628
+#define S1_STATUS_OFF		0x362c
+#define S2_STATUS_OFF		0x3630
+#define S3_STATUS_OFF		0x3634
+#define S4_STATUS_OFF		0x3638
+#define S5_STATUS_OFF		0x3664  /* Sensors 5-10 found on apq8064/msm8960 */
+#define S6_STATUS_OFF		0x3668
+#define S7_STATUS_OFF		0x366c
+#define S8_STATUS_OFF		0x3670
+#define S9_STATUS_OFF		0x3674
+#define S10_STATUS_OFF		0x3678
+
+/* Original slope - 350 to compensate mC to C inaccuracy */
+static u32 tsens_msm8960_slope[] = {
+			826, 826, 804, 826,
+			761, 782, 782, 849,
+			782, 849, 782
+			};
+
+static int suspend_8960(struct tsens_priv *priv)
+{
+	int ret;
+	unsigned int mask;
+	struct regmap *map = priv->tm_map;
+
+	ret = regmap_read(map, THRESHOLD_ADDR, &priv->ctx.threshold);
+	if (ret)
+		return ret;
+
+	ret = regmap_read(map, CNTL_ADDR, &priv->ctx.control);
+	if (ret)
+		return ret;
+
+	if (priv->num_sensors > 1)
+		mask = SLP_CLK_ENA | EN;
+	else
+		mask = SLP_CLK_ENA_8660 | EN;
+
+	ret = regmap_update_bits(map, CNTL_ADDR, mask, 0);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int resume_8960(struct tsens_priv *priv)
+{
+	int ret;
+	struct regmap *map = priv->tm_map;
+
+	ret = regmap_update_bits(map, CNTL_ADDR, SW_RST, SW_RST);
+	if (ret)
+		return ret;
+
+	/*
+	 * Separate CONFIG restore is not needed only for 8660 as
+	 * config is part of CTRL Addr and its restored as such
+	 */
+	if (priv->num_sensors > 1) {
+		ret = regmap_update_bits(map, CONFIG_ADDR, CONFIG_MASK, CONFIG);
+		if (ret)
+			return ret;
+	}
+
+	ret = regmap_write(map, THRESHOLD_ADDR, priv->ctx.threshold);
+	if (ret)
+		return ret;
+
+	ret = regmap_write(map, CNTL_ADDR, priv->ctx.control);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int enable_8960(struct tsens_priv *priv, int id)
+{
+	int ret;
+	u32 reg, mask = BIT(id);
+
+	ret = regmap_read(priv->tm_map, CNTL_ADDR, &reg);
+	if (ret)
+		return ret;
+
+	/* HARDWARE BUG:
+	 * On platforms with more than 6 sensors, all remaining sensors
+	 * must be enabled together, otherwise undefined results are expected.
+	 * (Sensor 6-7 disabled, Sensor 3 disabled...) In the original driver,
+	 * all the sensors are enabled in one step hence this bug is not
+	 * triggered.
+	 */
+	if (id > 5)
+		mask = GENMASK(10, 6);
+
+	mask <<= SENSOR0_SHIFT;
+
+	/* Sensors already enabled. Skip. */
+	if ((reg & mask) == mask)
+		return 0;
+
+	ret = regmap_write(priv->tm_map, CNTL_ADDR, reg | SW_RST);
+	if (ret)
+		return ret;
+
+	reg |= MEASURE_PERIOD;
+
+	if (priv->num_sensors > 1)
+		reg |= mask | SLP_CLK_ENA | EN;
+	else
+		reg |= mask | SLP_CLK_ENA_8660 | EN;
+
+	ret = regmap_write(priv->tm_map, CNTL_ADDR, reg);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static void disable_8960(struct tsens_priv *priv)
+{
+	int ret;
+	u32 reg_cntl;
+	u32 mask;
+
+	mask = GENMASK(priv->num_sensors - 1, 0);
+	mask <<= SENSOR0_SHIFT;
+	mask |= EN;
+
+	ret = regmap_read(priv->tm_map, CNTL_ADDR, &reg_cntl);
+	if (ret)
+		return;
+
+	reg_cntl &= ~mask;
+
+	if (priv->num_sensors > 1)
+		reg_cntl &= ~SLP_CLK_ENA;
+	else
+		reg_cntl &= ~SLP_CLK_ENA_8660;
+
+	regmap_write(priv->tm_map, CNTL_ADDR, reg_cntl);
+}
+
+static int calibrate_8960(struct tsens_priv *priv)
+{
+	int i;
+	char *data;
+	u32 p1[11];
+
+	data = qfprom_read(priv->dev, "calib");
+	if (IS_ERR(data))
+		data = qfprom_read(priv->dev, "calib_backup");
+	if (IS_ERR(data))
+		return PTR_ERR(data);
+
+	for (i = 0; i < priv->num_sensors; i++) {
+		p1[i] = data[i];
+		priv->sensor[i].slope = tsens_msm8960_slope[i];
+	}
+
+	compute_intercept_slope(priv, p1, NULL, ONE_PT_CALIB);
+
+	kfree(data);
+
+	return 0;
+}
+
+static const struct reg_field tsens_8960_regfields[MAX_REGFIELDS] = {
+	/* ----- SROT ------ */
+	/* No VERSION information */
+
+	/* CNTL */
+	[TSENS_EN]     = REG_FIELD(CNTL_ADDR,  0, 0),
+	[TSENS_SW_RST] = REG_FIELD(CNTL_ADDR,  1, 1),
+	/* 8960 has 5 sensors, 8660 has 11, we only handle 5 */
+	[SENSOR_EN]    = REG_FIELD(CNTL_ADDR,  3, 7),
+
+	/* ----- TM ------ */
+	/* INTERRUPT ENABLE */
+	/* NO INTERRUPT ENABLE */
+
+	/* Single UPPER/LOWER TEMPERATURE THRESHOLD for all sensors */
+	[LOW_THRESH_0]   = REG_FIELD(THRESHOLD_ADDR,  0,  7),
+	[UP_THRESH_0]    = REG_FIELD(THRESHOLD_ADDR,  8, 15),
+	/* MIN_THRESH_0 and MAX_THRESH_0 are not present in the regfield
+	 * Recycle CRIT_THRESH_0 and 1 to set the required regs to hardcoded temp
+	 * MIN_THRESH_0 -> CRIT_THRESH_1
+	 * MAX_THRESH_0 -> CRIT_THRESH_0
+	 */
+	[CRIT_THRESH_1]   = REG_FIELD(THRESHOLD_ADDR, 16, 23),
+	[CRIT_THRESH_0]   = REG_FIELD(THRESHOLD_ADDR, 24, 31),
+
+	/* UPPER/LOWER INTERRUPT [CLEAR/STATUS] */
+	/* 1 == clear, 0 == normal operation */
+	[LOW_INT_CLEAR_0]   = REG_FIELD(CNTL_ADDR,  9,  9),
+	[UP_INT_CLEAR_0]    = REG_FIELD(CNTL_ADDR, 10, 10),
+
+	/* NO CRITICAL INTERRUPT SUPPORT on 8960 */
+
+	/* Sn_STATUS */
+	[LAST_TEMP_0]  = REG_FIELD(S0_STATUS_OFF,  0,  7),
+	[LAST_TEMP_1]  = REG_FIELD(S1_STATUS_OFF,  0,  7),
+	[LAST_TEMP_2]  = REG_FIELD(S2_STATUS_OFF,  0,  7),
+	[LAST_TEMP_3]  = REG_FIELD(S3_STATUS_OFF,  0,  7),
+	[LAST_TEMP_4]  = REG_FIELD(S4_STATUS_OFF,  0,  7),
+	[LAST_TEMP_5]  = REG_FIELD(S5_STATUS_OFF,  0,  7),
+	[LAST_TEMP_6]  = REG_FIELD(S6_STATUS_OFF,  0,  7),
+	[LAST_TEMP_7]  = REG_FIELD(S7_STATUS_OFF,  0,  7),
+	[LAST_TEMP_8]  = REG_FIELD(S8_STATUS_OFF,  0,  7),
+	[LAST_TEMP_9]  = REG_FIELD(S9_STATUS_OFF,  0,  7),
+	[LAST_TEMP_10] = REG_FIELD(S10_STATUS_OFF, 0,  7),
+
+	/* No VALID field on 8960 */
+	/* TSENS_INT_STATUS bits: 1 == threshold violated */
+	[MIN_STATUS_0] = REG_FIELD(INT_STATUS_ADDR, 0, 0),
+	[LOWER_STATUS_0] = REG_FIELD(INT_STATUS_ADDR, 1, 1),
+	[UPPER_STATUS_0] = REG_FIELD(INT_STATUS_ADDR, 2, 2),
+	/* No CRITICAL field on 8960 */
+	[MAX_STATUS_0] = REG_FIELD(INT_STATUS_ADDR, 3, 3),
+
+	/* TRDY: 1=ready, 0=in progress */
+	[TRDY] = REG_FIELD(INT_STATUS_ADDR, 7, 7),
+};
+
+static const struct tsens_ops ops_8960 = {
+	.init		= init_common,
+	.calibrate	= calibrate_8960,
+	.get_temp	= get_temp_common,
+	.enable		= enable_8960,
+	.disable	= disable_8960,
+	.suspend	= suspend_8960,
+	.resume		= resume_8960,
+};
+
+static struct tsens_features tsens_8960_feat = {
+	.ver_major	= VER_0,
+	.crit_int	= 0,
+	.combo_int	= 0,
+	.adc		= 1,
+	.srot_split	= 0,
+	.max_sensors	= 11,
+	.trip_min_temp	= -40000,
+	.trip_max_temp	= 120000,
+};
+
+struct tsens_plat_data data_8960 = {
+	.num_sensors	= 11,
+	.ops		= &ops_8960,
+	.feat		= &tsens_8960_feat,
+	.fields		= tsens_8960_regfields,
+};

linux-7.2.3/drivers/thermal/qcom/tsens-v0_1.c

@@ -0,0 +1,408 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/bitfield.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/platform_device.h>
+#include "tsens.h"
+
+/* ----- SROT ------ */
+#define SROT_CTRL_OFF 0x0000
+
+/* ----- TM ------ */
+#define TM_INT_EN_OFF				0x0000
+#define TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF	0x0004
+#define TM_Sn_STATUS_OFF			0x0030
+#define TM_TRDY_OFF				0x005c
+
+/* extra data for 8974 */
+#define BKP_SEL			0x3
+#define BKP_REDUN_SEL		0xe0000000
+
+#define BIT_APPEND		0x3
+
+static struct tsens_legacy_calibration_format tsens_8916_nvmem = {
+	.base_len = 7,
+	.base_shift = 3,
+	.sp_len = 5,
+	.mode = { 0, 29, 1 },
+	.invalid = { 0, 31, 1 },
+	.base = { { 0, 0 }, { 1, 25 } },
+	.sp = {
+		{ { 0, 7 },  { 0, 12 } },
+		{ { 0, 17 }, { 0, 22 } },
+		{ { 0, 27 }, { 1, 0 } },
+		{ { 1, 5 },  { 1, 10 } },
+		{ { 1, 15 }, { 1, 20 } },
+	},
+};
+
+static struct tsens_legacy_calibration_format tsens_8974_nvmem = {
+	.base_len = 8,
+	.base_shift = 2,
+	.sp_len = 6,
+	.mode = { 1, 30 },
+	.invalid = { 3, 30 },
+	.base = { { 0, 0 }, { 2, 12 } },
+	.sp = {
+		{ { 0, 8 },  { 2, 20 } },
+		{ { 0, 14 }, { 2, 26 } },
+		{ { 0, 20 }, { 3, 0 } },
+		{ { 0, 26 }, { 3, 6 } },
+		{ { 1, 0 },  { 3, 12 } },
+		{ { 1, 6 },  { 3, 18 } },
+		{ { 1, 12 }, { 3, 24 } },
+		{ { 1, 18 }, { 4, 0 } },
+		{ { 1, 24 }, { 4, 6 } },
+		{ { 2, 0 },  { 4, 12 } },
+		{ { 2, 6 },  { 4, 18 } },
+	},
+};
+
+static struct tsens_legacy_calibration_format tsens_8974_backup_nvmem = {
+	.base_len = 8,
+	.base_shift = 2,
+	.sp_len = 6,
+	.mode = { 4, 30, 1 },
+	.invalid = { 5, 30, 1 },
+	.base = { { 0, 0 }, { 2, 18 } },
+	.sp = {
+		{ { 0, 8 },  { 2, 26 } },
+		{ { 0, 14 }, { 3, 0 } },
+		{ { 0, 20 }, { 3, 6 } },
+		{ { 0, 26 }, { 3, 12 } },
+		{ { 1, 0 },  { 3, 18 } },
+		{ { 1, 6 },  { 3, 24, 1 } },
+		{ { 1, 12 }, { 4, 0, 1 } },
+		{ { 1, 18 }, { 4, 6, 1 } },
+		{ { 2, 0 },  { 4, 12, 1 } },
+		{ { 2, 6 },  { 4, 18, 1 } },
+		{ { 2, 12 }, { 4, 24, 1 } },
+	},
+};
+
+static int calibrate_8916(struct tsens_priv *priv)
+{
+	u32 p1[5], p2[5];
+	u32 *qfprom_cdata, *qfprom_csel;
+	int mode, ret;
+
+	ret = tsens_calibrate_nvmem(priv, 3);
+	if (!ret)
+		return 0;
+
+	qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
+	if (IS_ERR(qfprom_cdata))
+		return PTR_ERR(qfprom_cdata);
+
+	qfprom_csel = (u32 *)qfprom_read(priv->dev, "calib_sel");
+	if (IS_ERR(qfprom_csel)) {
+		kfree(qfprom_cdata);
+		return PTR_ERR(qfprom_csel);
+	}
+
+	mode = tsens_read_calibration_legacy(priv, &tsens_8916_nvmem,
+					     p1, p2,
+					     qfprom_cdata, qfprom_csel);
+
+	compute_intercept_slope(priv, p1, p2, mode);
+	kfree(qfprom_cdata);
+	kfree(qfprom_csel);
+
+	return 0;
+}
+
+static void fixup_8974_points(int mode, u32 *p1, u32 *p2)
+{
+	int i;
+
+	if (mode == NO_PT_CALIB) {
+		p1[0] += 2;
+		p1[1] += 9;
+		p1[2] += 3;
+		p1[3] += 9;
+		p1[4] += 5;
+		p1[5] += 9;
+		p1[6] += 7;
+		p1[7] += 10;
+		p1[8] += 8;
+		p1[9] += 9;
+		p1[10] += 8;
+	} else {
+		for (i = 0; i < 11; i++) {
+			/*
+			 * ONE_PT_CALIB requires using addition here instead of
+			 * using OR operation.
+			 */
+			p1[i] += BIT_APPEND;
+			p2[i] += BIT_APPEND;
+		}
+	}
+
+}
+
+static int calibrate_8974_nvmem(struct tsens_priv *priv)
+{
+	u32 p1[11], p2[11];
+	u32 backup;
+	int ret, mode;
+
+	ret = nvmem_cell_read_variable_le_u32(priv->dev, "use_backup", &backup);
+	if (ret == -ENOENT)
+		dev_warn(priv->dev, "Please migrate to separate nvmem cells for calibration data\n");
+	if (ret < 0)
+		return ret;
+
+	mode = tsens_read_calibration(priv, 2, p1, p2, backup == BKP_SEL);
+	if (mode < 0)
+		return mode;
+
+	fixup_8974_points(mode, p1, p2);
+
+	compute_intercept_slope(priv, p1, p2, mode);
+
+	return 0;
+}
+
+static int calibrate_8974(struct tsens_priv *priv)
+{
+	u32 p1[11], p2[11];
+	u32 *calib, *bkp;
+	u32 calib_redun_sel;
+	int mode, ret;
+
+	ret = calibrate_8974_nvmem(priv);
+	if (ret == 0)
+		return 0;
+
+	calib = (u32 *)qfprom_read(priv->dev, "calib");
+	if (IS_ERR(calib))
+		return PTR_ERR(calib);
+
+	bkp = (u32 *)qfprom_read(priv->dev, "calib_backup");
+	if (IS_ERR(bkp)) {
+		kfree(calib);
+		return PTR_ERR(bkp);
+	}
+
+	calib_redun_sel = FIELD_GET(BKP_REDUN_SEL, bkp[1]);
+
+	if (calib_redun_sel == BKP_SEL)
+		mode = tsens_read_calibration_legacy(priv, &tsens_8974_backup_nvmem,
+						     p1, p2,
+						     bkp, calib);
+	else
+		mode = tsens_read_calibration_legacy(priv, &tsens_8974_nvmem,
+						     p1, p2,
+						     calib, NULL);
+
+	fixup_8974_points(mode, p1, p2);
+
+	compute_intercept_slope(priv, p1, p2, mode);
+	kfree(calib);
+	kfree(bkp);
+
+	return 0;
+}
+
+static int __init init_8226(struct tsens_priv *priv)
+{
+	priv->sensor[0].slope = 2901;
+	priv->sensor[1].slope = 2846;
+	priv->sensor[2].slope = 3038;
+	priv->sensor[3].slope = 2955;
+	priv->sensor[4].slope = 2901;
+	priv->sensor[5].slope = 2846;
+
+	return init_common(priv);
+}
+
+static int __init init_8909(struct tsens_priv *priv)
+{
+	int i;
+
+	for (i = 0; i < priv->num_sensors; ++i)
+		priv->sensor[i].slope = 3000;
+
+	priv->sensor[0].p1_calib_offset = 0;
+	priv->sensor[0].p2_calib_offset = 0;
+	priv->sensor[1].p1_calib_offset = -10;
+	priv->sensor[1].p2_calib_offset = -6;
+	priv->sensor[2].p1_calib_offset = 0;
+	priv->sensor[2].p2_calib_offset = 0;
+	priv->sensor[3].p1_calib_offset = -9;
+	priv->sensor[3].p2_calib_offset = -9;
+	priv->sensor[4].p1_calib_offset = -8;
+	priv->sensor[4].p2_calib_offset = -10;
+
+	return init_common(priv);
+}
+
+static int __init init_8939(struct tsens_priv *priv) {
+	priv->sensor[0].slope = 2911;
+	priv->sensor[1].slope = 2789;
+	priv->sensor[2].slope = 2906;
+	priv->sensor[3].slope = 2763;
+	priv->sensor[4].slope = 2922;
+	priv->sensor[5].slope = 2867;
+	priv->sensor[6].slope = 2833;
+	priv->sensor[7].slope = 2838;
+	priv->sensor[8].slope = 2840;
+	/* priv->sensor[9].slope = 2852; */
+
+	return init_common(priv);
+}
+
+static int __init init_9607(struct tsens_priv *priv)
+{
+	int i;
+
+	for (i = 0; i < priv->num_sensors; ++i)
+		priv->sensor[i].slope = 3000;
+
+	priv->sensor[0].p1_calib_offset = 1;
+	priv->sensor[0].p2_calib_offset = 1;
+	priv->sensor[1].p1_calib_offset = -4;
+	priv->sensor[1].p2_calib_offset = -2;
+	priv->sensor[2].p1_calib_offset = 4;
+	priv->sensor[2].p2_calib_offset = 8;
+	priv->sensor[3].p1_calib_offset = -3;
+	priv->sensor[3].p2_calib_offset = -5;
+	priv->sensor[4].p1_calib_offset = -4;
+	priv->sensor[4].p2_calib_offset = -4;
+
+	return init_common(priv);
+}
+
+/* v0.1: 8226, 8909, 8916, 8939, 8974, 9607 */
+
+static struct tsens_features tsens_v0_1_feat = {
+	.ver_major	= VER_0_1,
+	.crit_int	= 0,
+	.combo_int	= 0,
+	.adc		= 1,
+	.srot_split	= 1,
+	.max_sensors	= 11,
+	.trip_min_temp	= -40000,
+	.trip_max_temp	= 120000,
+};
+
+static const struct reg_field tsens_v0_1_regfields[MAX_REGFIELDS] = {
+	/* ----- SROT ------ */
+	/* No VERSION information */
+
+	/* CTRL_OFFSET */
+	[TSENS_EN]     = REG_FIELD(SROT_CTRL_OFF, 0,  0),
+	[TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1,  1),
+
+	/* ----- TM ------ */
+	/* INTERRUPT ENABLE */
+	[INT_EN] = REG_FIELD(TM_INT_EN_OFF, 0, 0),
+
+	/* UPPER/LOWER TEMPERATURE THRESHOLDS */
+	REG_FIELD_FOR_EACH_SENSOR11(LOW_THRESH,    TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF,  0,  9),
+	REG_FIELD_FOR_EACH_SENSOR11(UP_THRESH,     TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 10, 19),
+
+	/* UPPER/LOWER INTERRUPTS [CLEAR/STATUS] */
+	REG_FIELD_FOR_EACH_SENSOR11(LOW_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 20, 20),
+	REG_FIELD_FOR_EACH_SENSOR11(UP_INT_CLEAR,  TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 21, 21),
+
+	/* NO CRITICAL INTERRUPT SUPPORT on v0.1 */
+
+	/* Sn_STATUS */
+	REG_FIELD_FOR_EACH_SENSOR11(LAST_TEMP,    TM_Sn_STATUS_OFF,  0,  9),
+	/* No VALID field on v0.1 */
+	/* xxx_STATUS bits: 1 == threshold violated */
+	REG_FIELD_FOR_EACH_SENSOR11(MIN_STATUS,   TM_Sn_STATUS_OFF, 10, 10),
+	REG_FIELD_FOR_EACH_SENSOR11(LOWER_STATUS, TM_Sn_STATUS_OFF, 11, 11),
+	REG_FIELD_FOR_EACH_SENSOR11(UPPER_STATUS, TM_Sn_STATUS_OFF, 12, 12),
+	/* No CRITICAL field on v0.1 */
+	REG_FIELD_FOR_EACH_SENSOR11(MAX_STATUS,   TM_Sn_STATUS_OFF, 13, 13),
+
+	/* TRDY: 1=ready, 0=in progress */
+	[TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0),
+};
+
+static const struct tsens_ops ops_8226 = {
+	.init		= init_8226,
+	.calibrate	= tsens_calibrate_common,
+	.get_temp	= get_temp_common,
+};
+
+struct tsens_plat_data data_8226 = {
+	.num_sensors	= 6,
+	.ops		= &ops_8226,
+	.feat		= &tsens_v0_1_feat,
+	.fields	= tsens_v0_1_regfields,
+};
+
+static const struct tsens_ops ops_8909 = {
+	.init		= init_8909,
+	.calibrate	= tsens_calibrate_common,
+	.get_temp	= get_temp_common,
+};
+
+struct tsens_plat_data data_8909 = {
+	.num_sensors	= 5,
+	.ops		= &ops_8909,
+	.feat		= &tsens_v0_1_feat,
+	.fields	= tsens_v0_1_regfields,
+};
+
+static const struct tsens_ops ops_8916 = {
+	.init		= init_common,
+	.calibrate	= calibrate_8916,
+	.get_temp	= get_temp_common,
+};
+
+struct tsens_plat_data data_8916 = {
+	.num_sensors	= 5,
+	.ops		= &ops_8916,
+	.hw_ids		= (unsigned int []){0, 1, 2, 4, 5 },
+
+	.feat		= &tsens_v0_1_feat,
+	.fields	= tsens_v0_1_regfields,
+};
+
+static const struct tsens_ops ops_8939 = {
+	.init		= init_8939,
+	.calibrate	= tsens_calibrate_common,
+	.get_temp	= get_temp_common,
+};
+
+struct tsens_plat_data data_8939 = {
+	.num_sensors	= 9,
+	.ops		= &ops_8939,
+	.hw_ids		= (unsigned int []){ 0, 1, 2, 3, 5, 6, 7, 8, 9, /* 10 */ },
+
+	.feat		= &tsens_v0_1_feat,
+	.fields	= tsens_v0_1_regfields,
+};
+
+static const struct tsens_ops ops_8974 = {
+	.init		= init_common,
+	.calibrate	= calibrate_8974,
+	.get_temp	= get_temp_common,
+};
+
+struct tsens_plat_data data_8974 = {
+	.num_sensors	= 11,
+	.ops		= &ops_8974,
+	.feat		= &tsens_v0_1_feat,
+	.fields	= tsens_v0_1_regfields,
+};
+
+static const struct tsens_ops ops_9607 = {
+	.init		= init_9607,
+	.calibrate	= tsens_calibrate_common,
+	.get_temp	= get_temp_common,
+};
+
+struct tsens_plat_data data_9607 = {
+	.num_sensors	= 5,
+	.ops		= &ops_9607,
+	.feat		= &tsens_v0_1_feat,
+	.fields	= tsens_v0_1_regfields,
+};

linux-7.2.3/drivers/thermal/qcom/tsens-v1.c

@@ -0,0 +1,258 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019, Linaro Limited
+ */
+
+#include <linux/bitops.h>
+#include <linux/regmap.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include "tsens.h"
+
+/* ----- SROT ------ */
+#define SROT_HW_VER_OFF	0x0000
+#define SROT_CTRL_OFF		0x0004
+
+/* ----- TM ------ */
+#define TM_INT_EN_OFF				0x0000
+#define TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF	0x0004
+#define TM_Sn_STATUS_OFF			0x0044
+#define TM_TRDY_OFF				0x0084
+#define TM_HIGH_LOW_INT_STATUS_OFF		0x0088
+#define TM_HIGH_LOW_Sn_INT_THRESHOLD_OFF	0x0090
+
+static struct tsens_legacy_calibration_format tsens_qcs404_nvmem = {
+	.base_len = 8,
+	.base_shift = 2,
+	.sp_len = 6,
+	.mode = { 4, 0 },
+	.invalid = { 4, 2 },
+	.base = { { 4, 3 }, { 4, 11 } },
+	.sp = {
+		{ { 0, 0 }, { 0, 6 } },
+		{ { 0, 12 }, { 0, 18 } },
+		{ { 0, 24 }, { 0, 30 } },
+		{ { 1, 4 },  { 1, 10 } },
+		{ { 1, 16 }, { 1, 22 } },
+		{ { 2, 0 },  { 2, 6 } },
+		{ { 2, 12 }, { 2, 18 } },
+		{ { 2, 24 }, { 2, 30 } },
+		{ { 3, 4 },  { 3, 10 } },
+		{ { 3, 16 }, { 3, 22 } },
+	},
+};
+
+static int calibrate_v1(struct tsens_priv *priv)
+{
+	u32 p1[10], p2[10];
+	u32 *qfprom_cdata;
+	int mode, ret;
+
+	ret = tsens_calibrate_common(priv);
+	if (!ret)
+		return 0;
+
+	qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
+	if (IS_ERR(qfprom_cdata))
+		return PTR_ERR(qfprom_cdata);
+
+	mode = tsens_read_calibration_legacy(priv, &tsens_qcs404_nvmem,
+					     p1, p2,
+					     qfprom_cdata, NULL);
+
+	compute_intercept_slope(priv, p1, p2, mode);
+	kfree(qfprom_cdata);
+
+	return 0;
+}
+
+/* v1.x: msm8956,8976,qcs404,405 */
+
+static struct tsens_features tsens_v1_feat = {
+	.ver_major	= VER_1_X,
+	.crit_int	= 0,
+	.combo_int	= 0,
+	.adc		= 1,
+	.srot_split	= 1,
+	.max_sensors	= 11,
+	.trip_min_temp	= -40000,
+	.trip_max_temp	= 120000,
+};
+
+static struct tsens_features tsens_v1_no_rpm_feat = {
+	.ver_major	= VER_1_X_NO_RPM,
+	.crit_int	= 0,
+	.combo_int	= 0,
+	.adc		= 1,
+	.srot_split	= 1,
+	.max_sensors	= 11,
+	.trip_min_temp	= -40000,
+	.trip_max_temp	= 120000,
+};
+
+static const struct reg_field tsens_v1_regfields[MAX_REGFIELDS] = {
+	/* ----- SROT ------ */
+	/* VERSION */
+	[VER_MAJOR] = REG_FIELD(SROT_HW_VER_OFF, 28, 31),
+	[VER_MINOR] = REG_FIELD(SROT_HW_VER_OFF, 16, 27),
+	[VER_STEP]  = REG_FIELD(SROT_HW_VER_OFF,  0, 15),
+	/* CTRL_OFFSET */
+	[TSENS_EN]     = REG_FIELD(SROT_CTRL_OFF, 0,  0),
+	[TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1,  1),
+	[SENSOR_EN]    = REG_FIELD(SROT_CTRL_OFF, 3, 13),
+
+	/* ----- TM ------ */
+	/* INTERRUPT ENABLE */
+	[INT_EN]     = REG_FIELD(TM_INT_EN_OFF, 0, 0),
+
+	/* UPPER/LOWER TEMPERATURE THRESHOLDS */
+	REG_FIELD_FOR_EACH_SENSOR11(LOW_THRESH,    TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF,  0,  9),
+	REG_FIELD_FOR_EACH_SENSOR11(UP_THRESH,     TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 10, 19),
+
+	/* UPPER/LOWER INTERRUPTS [CLEAR/STATUS] */
+	REG_FIELD_FOR_EACH_SENSOR11(LOW_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 20, 20),
+	REG_FIELD_FOR_EACH_SENSOR11(UP_INT_CLEAR,  TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 21, 21),
+	[LOW_INT_STATUS_0] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  0,  0),
+	[LOW_INT_STATUS_1] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  1,  1),
+	[LOW_INT_STATUS_2] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  2,  2),
+	[LOW_INT_STATUS_3] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  3,  3),
+	[LOW_INT_STATUS_4] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  4,  4),
+	[LOW_INT_STATUS_5] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  5,  5),
+	[LOW_INT_STATUS_6] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  6,  6),
+	[LOW_INT_STATUS_7] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  7,  7),
+	[UP_INT_STATUS_0]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  8,  8),
+	[UP_INT_STATUS_1]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  9,  9),
+	[UP_INT_STATUS_2]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 10, 10),
+	[UP_INT_STATUS_3]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 11, 11),
+	[UP_INT_STATUS_4]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 12, 12),
+	[UP_INT_STATUS_5]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 13, 13),
+	[UP_INT_STATUS_6]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 14, 14),
+	[UP_INT_STATUS_7]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 15, 15),
+
+	/* NO CRITICAL INTERRUPT SUPPORT on v1 */
+
+	/* Sn_STATUS */
+	REG_FIELD_FOR_EACH_SENSOR11(LAST_TEMP,    TM_Sn_STATUS_OFF,  0,  9),
+	REG_FIELD_FOR_EACH_SENSOR11(VALID,        TM_Sn_STATUS_OFF, 14, 14),
+	/* xxx_STATUS bits: 1 == threshold violated */
+	REG_FIELD_FOR_EACH_SENSOR11(MIN_STATUS,   TM_Sn_STATUS_OFF, 10, 10),
+	REG_FIELD_FOR_EACH_SENSOR11(LOWER_STATUS, TM_Sn_STATUS_OFF, 11, 11),
+	REG_FIELD_FOR_EACH_SENSOR11(UPPER_STATUS, TM_Sn_STATUS_OFF, 12, 12),
+	/* No CRITICAL field on v1.x */
+	REG_FIELD_FOR_EACH_SENSOR11(MAX_STATUS,   TM_Sn_STATUS_OFF, 13, 13),
+
+	/* TRDY: 1=ready, 0=in progress */
+	[TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0),
+};
+
+static int __init init_8956(struct tsens_priv *priv) {
+	priv->sensor[0].slope = 3313;
+	priv->sensor[1].slope = 3275;
+	priv->sensor[2].slope = 3320;
+	priv->sensor[3].slope = 3246;
+	priv->sensor[4].slope = 3279;
+	priv->sensor[5].slope = 3257;
+	priv->sensor[6].slope = 3234;
+	priv->sensor[7].slope = 3269;
+	priv->sensor[8].slope = 3255;
+	priv->sensor[9].slope = 3239;
+	priv->sensor[10].slope = 3286;
+
+	return init_common(priv);
+}
+
+static int __init init_tsens_v1_no_rpm(struct tsens_priv *priv)
+{
+	int i, ret;
+	u32 mask = 0;
+
+	ret = init_common(priv);
+	if (ret < 0) {
+		dev_err(priv->dev, "Init common failed %d\n", ret);
+		return ret;
+	}
+
+	ret = regmap_field_write(priv->rf[TSENS_SW_RST], 1);
+	if (ret) {
+		dev_err(priv->dev, "Reset failed\n");
+		return ret;
+	}
+
+	for (i = 0; i < priv->num_sensors; i++)
+		mask |= BIT(priv->sensor[i].hw_id);
+
+	ret = regmap_field_update_bits(priv->rf[SENSOR_EN], mask, mask);
+	if (ret) {
+		dev_err(priv->dev, "Sensor Enable failed\n");
+		return ret;
+	}
+
+	ret = regmap_field_write(priv->rf[TSENS_EN], 1);
+	if (ret) {
+		dev_err(priv->dev, "Enable failed\n");
+		return ret;
+	}
+
+	ret = regmap_field_write(priv->rf[TSENS_SW_RST], 0);
+
+	return ret;
+}
+
+static const struct tsens_ops ops_generic_v1 = {
+	.init		= init_common,
+	.calibrate	= calibrate_v1,
+	.get_temp	= get_temp_tsens_valid,
+};
+
+struct tsens_plat_data data_tsens_v1 = {
+	.ops		= &ops_generic_v1,
+	.feat		= &tsens_v1_feat,
+	.fields	= tsens_v1_regfields,
+};
+
+static const struct tsens_ops ops_common = {
+	.init		= init_common,
+	.calibrate	= tsens_calibrate_common,
+	.get_temp	= get_temp_tsens_valid,
+};
+
+struct tsens_plat_data data_8937 = {
+	.num_sensors	= 11,
+	.ops		= &ops_common,
+	.feat		= &tsens_v1_feat,
+	.fields		= tsens_v1_regfields,
+};
+
+static const struct tsens_ops ops_8956 = {
+	.init		= init_8956,
+	.calibrate	= tsens_calibrate_common,
+	.get_temp	= get_temp_tsens_valid,
+};
+
+struct tsens_plat_data data_8956 = {
+	.num_sensors	= 11,
+	.ops		= &ops_8956,
+	.feat		= &tsens_v1_feat,
+	.fields		= tsens_v1_regfields,
+};
+
+struct tsens_plat_data data_8976 = {
+	.num_sensors	= 11,
+	.ops		= &ops_common,
+	.feat		= &tsens_v1_feat,
+	.fields		= tsens_v1_regfields,
+};
+
+static const struct tsens_ops ops_ipq5018 = {
+	.init		= init_tsens_v1_no_rpm,
+	.calibrate	= tsens_calibrate_common,
+	.get_temp	= get_temp_tsens_valid,
+};
+
+const struct tsens_plat_data data_ipq5018 = {
+	.num_sensors	= 5,
+	.ops		= &ops_ipq5018,
+	.hw_ids		= (unsigned int []){0, 1, 2, 3, 4},
+	.feat		= &tsens_v1_no_rpm_feat,
+	.fields		= tsens_v1_regfields,
+};

linux-7.2.3/drivers/thermal/qcom/tsens-v2.c

@@ -0,0 +1,316 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2018, Linaro Limited
+ */
+
+#include <linux/bitfield.h>
+#include <linux/bitops.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/regmap.h>
+#include "tsens.h"
+
+/* ----- SROT ------ */
+#define SROT_HW_VER_OFF	0x0000
+#define SROT_CTRL_OFF		0x0004
+#define SROT_MEASURE_PERIOD	0x0008
+#define SROT_Sn_CONVERSION	0x0060
+#define V2_SHIFT_DEFAULT	0x0003
+#define V2_SLOPE_DEFAULT	0x0cd0
+#define V2_CZERO_DEFAULT	0x016a
+#define ONE_PT_SLOPE		0x0cd0
+#define TWO_PT_SHIFTED_GAIN	921600
+#define ONE_PT_CZERO_CONST	94
+#define SW_RST_DEASSERT		0x0
+#define SW_RST_ASSERT		0x1
+#define MEASURE_PERIOD_2mSEC	0x1
+#define RESULT_FORMAT_TEMP	0x1
+#define TSENS_ENABLE		0x1
+#define SENSOR_CONVERSION(n)	(((n) * 4) + SROT_Sn_CONVERSION)
+#define CONVERSION_SHIFT_MASK	GENMASK(24, 23)
+#define CONVERSION_SLOPE_MASK	GENMASK(22, 10)
+#define CONVERSION_CZERO_MASK	GENMASK(9, 0)
+
+/* ----- TM ------ */
+#define TM_INT_EN_OFF			0x0004
+#define TM_UPPER_LOWER_INT_STATUS_OFF	0x0008
+#define TM_UPPER_LOWER_INT_CLEAR_OFF	0x000c
+#define TM_UPPER_LOWER_INT_MASK_OFF	0x0010
+#define TM_CRITICAL_INT_STATUS_OFF	0x0014
+#define TM_CRITICAL_INT_CLEAR_OFF	0x0018
+#define TM_CRITICAL_INT_MASK_OFF	0x001c
+#define TM_Sn_UPPER_LOWER_THRESHOLD_OFF 0x0020
+#define TM_Sn_CRITICAL_THRESHOLD_OFF	0x0060
+#define TM_Sn_STATUS_OFF		0x00a0
+#define TM_TRDY_OFF			0x00e4
+#define TM_WDOG_LOG_OFF		0x013c
+
+/* v2.x: 8996, 8998, sdm845 */
+
+static struct tsens_features tsens_v2_feat = {
+	.ver_major	= VER_2_X,
+	.crit_int	= 1,
+	.combo_int	= 0,
+	.adc		= 0,
+	.srot_split	= 1,
+	.max_sensors	= 16,
+	.trip_min_temp	= -40000,
+	.trip_max_temp	= 120000,
+};
+
+static struct tsens_features ipq8074_feat = {
+	.ver_major	= VER_2_X,
+	.crit_int	= 1,
+	.combo_int	= 1,
+	.adc		= 0,
+	.srot_split	= 1,
+	.max_sensors	= 16,
+	.trip_min_temp	= 0,
+	.trip_max_temp	= 204000,
+};
+
+static struct tsens_features ipq5332_feat = {
+	.ver_major	= VER_2_X_NO_RPM,
+	.crit_int	= 1,
+	.combo_int	= 1,
+	.adc		= 0,
+	.srot_split	= 1,
+	.max_sensors	= 16,
+	.trip_min_temp	= 0,
+	.trip_max_temp	= 204000,
+};
+
+static const struct reg_field tsens_v2_regfields[MAX_REGFIELDS] = {
+	/* ----- SROT ------ */
+	/* VERSION */
+	[VER_MAJOR] = REG_FIELD(SROT_HW_VER_OFF, 28, 31),
+	[VER_MINOR] = REG_FIELD(SROT_HW_VER_OFF, 16, 27),
+	[VER_STEP]  = REG_FIELD(SROT_HW_VER_OFF,  0, 15),
+	/* CTRL_OFF */
+	[TSENS_EN]     = REG_FIELD(SROT_CTRL_OFF,    0,  0),
+	[TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF,    1,  1),
+	[SENSOR_EN]    = REG_FIELD(SROT_CTRL_OFF,    3,  18),
+	[CODE_OR_TEMP] = REG_FIELD(SROT_CTRL_OFF,    21, 21),
+
+	[MAIN_MEASURE_PERIOD] = REG_FIELD(SROT_MEASURE_PERIOD, 0, 7),
+
+	/* ----- TM ------ */
+	/* INTERRUPT ENABLE */
+	/* v2 has separate enables for UPPER/LOWER/CRITICAL interrupts */
+	[INT_EN]  = REG_FIELD(TM_INT_EN_OFF, 0, 2),
+
+	/* TEMPERATURE THRESHOLDS */
+	REG_FIELD_FOR_EACH_SENSOR16(LOW_THRESH,  TM_Sn_UPPER_LOWER_THRESHOLD_OFF,  0,  11),
+	REG_FIELD_FOR_EACH_SENSOR16(UP_THRESH,   TM_Sn_UPPER_LOWER_THRESHOLD_OFF, 12,  23),
+	REG_FIELD_FOR_EACH_SENSOR16(CRIT_THRESH, TM_Sn_CRITICAL_THRESHOLD_OFF,     0,  11),
+
+	/* INTERRUPTS [CLEAR/STATUS/MASK] */
+	REG_FIELD_SPLIT_BITS_0_15(LOW_INT_STATUS,  TM_UPPER_LOWER_INT_STATUS_OFF),
+	REG_FIELD_SPLIT_BITS_0_15(LOW_INT_CLEAR,   TM_UPPER_LOWER_INT_CLEAR_OFF),
+	REG_FIELD_SPLIT_BITS_0_15(LOW_INT_MASK,    TM_UPPER_LOWER_INT_MASK_OFF),
+	REG_FIELD_SPLIT_BITS_16_31(UP_INT_STATUS,  TM_UPPER_LOWER_INT_STATUS_OFF),
+	REG_FIELD_SPLIT_BITS_16_31(UP_INT_CLEAR,   TM_UPPER_LOWER_INT_CLEAR_OFF),
+	REG_FIELD_SPLIT_BITS_16_31(UP_INT_MASK,    TM_UPPER_LOWER_INT_MASK_OFF),
+	REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_STATUS, TM_CRITICAL_INT_STATUS_OFF),
+	REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_CLEAR,  TM_CRITICAL_INT_CLEAR_OFF),
+	REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_MASK,   TM_CRITICAL_INT_MASK_OFF),
+
+	/* WATCHDOG on v2.3 or later */
+	[WDOG_BARK_STATUS] = REG_FIELD(TM_CRITICAL_INT_STATUS_OFF, 31, 31),
+	[WDOG_BARK_CLEAR]  = REG_FIELD(TM_CRITICAL_INT_CLEAR_OFF,  31, 31),
+	[WDOG_BARK_MASK]   = REG_FIELD(TM_CRITICAL_INT_MASK_OFF,   31, 31),
+	[CC_MON_STATUS]    = REG_FIELD(TM_CRITICAL_INT_STATUS_OFF, 30, 30),
+	[CC_MON_CLEAR]     = REG_FIELD(TM_CRITICAL_INT_CLEAR_OFF,  30, 30),
+	[CC_MON_MASK]      = REG_FIELD(TM_CRITICAL_INT_MASK_OFF,   30, 30),
+	[WDOG_BARK_COUNT]  = REG_FIELD(TM_WDOG_LOG_OFF,             0,  7),
+
+	/* Sn_STATUS */
+	REG_FIELD_FOR_EACH_SENSOR16(LAST_TEMP,       TM_Sn_STATUS_OFF,  0,  11),
+	REG_FIELD_FOR_EACH_SENSOR16(VALID,           TM_Sn_STATUS_OFF, 21,  21),
+	/* xxx_STATUS bits: 1 == threshold violated */
+	REG_FIELD_FOR_EACH_SENSOR16(MIN_STATUS,      TM_Sn_STATUS_OFF, 16,  16),
+	REG_FIELD_FOR_EACH_SENSOR16(LOWER_STATUS,    TM_Sn_STATUS_OFF, 17,  17),
+	REG_FIELD_FOR_EACH_SENSOR16(UPPER_STATUS,    TM_Sn_STATUS_OFF, 18,  18),
+	REG_FIELD_FOR_EACH_SENSOR16(CRITICAL_STATUS, TM_Sn_STATUS_OFF, 19,  19),
+	REG_FIELD_FOR_EACH_SENSOR16(MAX_STATUS,      TM_Sn_STATUS_OFF, 20,  20),
+
+	/* TRDY: 1=ready, 0=in progress */
+	[TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0),
+};
+
+static int tsens_v2_calibrate_sensor(struct device *dev, struct tsens_sensor *sensor,
+				     struct regmap *map,  u32 mode, u32 base0, u32 base1)
+{
+	u32	shift = V2_SHIFT_DEFAULT;
+	u32	slope = V2_SLOPE_DEFAULT;
+	u32	czero = V2_CZERO_DEFAULT;
+	char	name[20];
+	u32	val;
+	int	ret;
+
+	/* Read offset value */
+	ret = snprintf(name, sizeof(name), "tsens_sens%d_off", sensor->hw_id);
+	if (ret < 0)
+		return ret;
+
+	ret = nvmem_cell_read_variable_le_u32(dev, name, &sensor->offset);
+	if (ret)
+		return ret;
+
+	/* Based on calib mode, program SHIFT, SLOPE and CZERO */
+	switch (mode) {
+	case TWO_PT_CALIB:
+		slope = (TWO_PT_SHIFTED_GAIN / (base1 - base0));
+
+		czero = (base0 + sensor->offset - ((base1 - base0) / 3));
+
+		break;
+	case ONE_PT_CALIB2:
+		czero = base0 + sensor->offset - ONE_PT_CZERO_CONST;
+
+		slope = ONE_PT_SLOPE;
+
+		break;
+	default:
+		dev_dbg(dev, "calibrationless mode\n");
+	}
+
+	val = FIELD_PREP(CONVERSION_SHIFT_MASK, shift) |
+	      FIELD_PREP(CONVERSION_SLOPE_MASK, slope) |
+	      FIELD_PREP(CONVERSION_CZERO_MASK, czero);
+
+	regmap_write(map, SENSOR_CONVERSION(sensor->hw_id), val);
+
+	return 0;
+}
+
+static int tsens_v2_calibration(struct tsens_priv *priv)
+{
+	struct device *dev = priv->dev;
+	u32 mode, base0, base1;
+	int i, ret;
+
+	if (priv->num_sensors > MAX_SENSORS)
+		return -EINVAL;
+
+	ret = nvmem_cell_read_variable_le_u32(priv->dev, "mode", &mode);
+	if (ret == -ENOENT)
+		dev_warn(priv->dev, "Calibration data not present in DT\n");
+	if (ret < 0)
+		return ret;
+
+	dev_dbg(priv->dev, "calibration mode is %d\n", mode);
+
+	ret = nvmem_cell_read_variable_le_u32(priv->dev, "base0", &base0);
+	if (ret < 0)
+		return ret;
+
+	ret = nvmem_cell_read_variable_le_u32(priv->dev, "base1", &base1);
+	if (ret < 0)
+		return ret;
+
+	/* Calibrate each sensor */
+	for (i = 0; i < priv->num_sensors; i++) {
+		ret = tsens_v2_calibrate_sensor(dev, &priv->sensor[i], priv->srot_map,
+						mode, base0, base1);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int __init init_tsens_v2_no_rpm(struct tsens_priv *priv)
+{
+	struct device *dev = priv->dev;
+	int i, ret;
+	u32 val = 0;
+
+	ret = init_common(priv);
+	if (ret < 0)
+		return ret;
+
+	priv->rf[CODE_OR_TEMP] = devm_regmap_field_alloc(dev, priv->srot_map,
+							 priv->fields[CODE_OR_TEMP]);
+	if (IS_ERR(priv->rf[CODE_OR_TEMP]))
+		return PTR_ERR(priv->rf[CODE_OR_TEMP]);
+
+	priv->rf[MAIN_MEASURE_PERIOD] = devm_regmap_field_alloc(dev, priv->srot_map,
+								priv->fields[MAIN_MEASURE_PERIOD]);
+	if (IS_ERR(priv->rf[MAIN_MEASURE_PERIOD]))
+		return PTR_ERR(priv->rf[MAIN_MEASURE_PERIOD]);
+
+	regmap_field_write(priv->rf[TSENS_SW_RST], SW_RST_ASSERT);
+
+	regmap_field_write(priv->rf[MAIN_MEASURE_PERIOD], MEASURE_PERIOD_2mSEC);
+
+	/* Enable available sensors */
+	for (i = 0; i < priv->num_sensors; i++)
+		val |= 1 << priv->sensor[i].hw_id;
+
+	regmap_field_write(priv->rf[SENSOR_EN], val);
+
+	/* Select temperature format, unit is deci-Celsius */
+	regmap_field_write(priv->rf[CODE_OR_TEMP], RESULT_FORMAT_TEMP);
+
+	regmap_field_write(priv->rf[TSENS_SW_RST], SW_RST_DEASSERT);
+
+	regmap_field_write(priv->rf[TSENS_EN], TSENS_ENABLE);
+
+	return 0;
+}
+
+static const struct tsens_ops ops_generic_v2 = {
+	.init		= init_common,
+	.get_temp	= get_temp_tsens_valid,
+};
+
+struct tsens_plat_data data_tsens_v2 = {
+	.ops		= &ops_generic_v2,
+	.feat		= &tsens_v2_feat,
+	.fields	= tsens_v2_regfields,
+};
+
+struct tsens_plat_data data_ipq8074 = {
+	.ops		= &ops_generic_v2,
+	.feat		= &ipq8074_feat,
+	.fields	= tsens_v2_regfields,
+};
+
+static const struct tsens_ops ops_ipq5332 = {
+	.init		= init_tsens_v2_no_rpm,
+	.get_temp	= get_temp_tsens_valid,
+	.calibrate	= tsens_v2_calibration,
+};
+
+const struct tsens_plat_data data_ipq5332 = {
+	.num_sensors	= 5,
+	.ops		= &ops_ipq5332,
+	.hw_ids		= (unsigned int []){11, 12, 13, 14, 15},
+	.feat		= &ipq5332_feat,
+	.fields		= tsens_v2_regfields,
+};
+
+const struct tsens_plat_data data_ipq5424 = {
+	.num_sensors	= 7,
+	.ops		= &ops_ipq5332,
+	.hw_ids		= (unsigned int []){9, 10, 11, 12, 13, 14, 15},
+	.feat		= &ipq5332_feat,
+	.fields		= tsens_v2_regfields,
+};
+
+/* Kept around for backward compatibility with old msm8996.dtsi */
+struct tsens_plat_data data_8996 = {
+	.num_sensors	= 13,
+	.ops		= &ops_generic_v2,
+	.feat		= &tsens_v2_feat,
+	.fields	= tsens_v2_regfields,
+};
+
+/* Do not enable wakeup capable interrupts for automotive platforms */
+struct tsens_plat_data data_automotive_v2 = {
+	.ops		= &ops_generic_v2,
+	.feat		= &tsens_v2_feat,
+	.fields		= tsens_v2_regfields,
+	.no_irq_wake = true,
+};

linux-7.2.3/drivers/thermal/qcom/tsens.h

@@ -0,0 +1,684 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef __QCOM_TSENS_H__
+#define __QCOM_TSENS_H__
+
+#define NO_PT_CALIB		0x0
+#define ONE_PT_CALIB		0x1
+#define ONE_PT_CALIB2		0x2
+#define TWO_PT_CALIB		0x3
+#define ONE_PT_CALIB2_NO_OFFSET	0x6
+#define TWO_PT_CALIB_NO_OFFSET	0x7
+#define CAL_DEGC_PT1		30
+#define CAL_DEGC_PT2		120
+#define SLOPE_FACTOR		1000
+#define SLOPE_DEFAULT		3200
+#define TIMEOUT_US		100
+#define THRESHOLD_MAX_ADC_CODE	0x3ff
+#define THRESHOLD_MIN_ADC_CODE	0x0
+
+#define MAX_SENSORS 16
+#define MAX_READ_RETRY 3
+
+#include <linux/interrupt.h>
+#include <linux/thermal.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+struct tsens_priv;
+
+/* IP version numbers in ascending order */
+enum tsens_ver {
+	VER_0 = 0,
+	VER_0_1,
+	VER_1_X,
+	VER_1_X_NO_RPM,
+	VER_2_X,
+	VER_2_X_NO_RPM,
+};
+
+enum tsens_irq_type {
+	LOWER,
+	UPPER,
+	CRITICAL,
+};
+
+/**
+ * struct tsens_sensor - data for each sensor connected to the tsens device
+ * @priv: tsens device instance that this sensor is connected to
+ * @tzd: pointer to the thermal zone that this sensor is in
+ * @offset: offset of temperature adjustment curve
+ * @hw_id: HW ID can be used in case of platform-specific IDs
+ * @slope: slope of temperature adjustment curve
+ * @status: 8960-specific variable to track 8960 and 8660 status register offset
+ */
+struct tsens_sensor {
+	struct tsens_priv		*priv;
+	struct thermal_zone_device	*tzd;
+	int				offset;
+	unsigned int			hw_id;
+	int				slope;
+	u32				status;
+	int				p1_calib_offset;
+	int				p2_calib_offset;
+};
+
+/**
+ * struct tsens_ops - operations as supported by the tsens device
+ * @init: Function to initialize the tsens device
+ * @calibrate: Function to calibrate the tsens device
+ * @get_temp: Function which returns the temp in millidegC
+ * @enable: Function to enable (clocks/power) tsens device
+ * @disable: Function to disable the tsens device
+ * @suspend: Function to suspend the tsens device
+ * @resume: Function to resume the tsens device
+ */
+struct tsens_ops {
+	/* mandatory callbacks */
+	int (*init)(struct tsens_priv *priv);
+	int (*calibrate)(struct tsens_priv *priv);
+	int (*get_temp)(const struct tsens_sensor *s, int *temp);
+	/* optional callbacks */
+	int (*enable)(struct tsens_priv *priv, int i);
+	void (*disable)(struct tsens_priv *priv);
+	int (*suspend)(struct tsens_priv *priv);
+	int (*resume)(struct tsens_priv *priv);
+};
+
+#define REG_FIELD_FOR_EACH_SENSOR11(_name, _offset, _startbit, _stopbit) \
+	[_name##_##0]  = REG_FIELD(_offset,      _startbit, _stopbit),	\
+	[_name##_##1]  = REG_FIELD(_offset +  4, _startbit, _stopbit), \
+	[_name##_##2]  = REG_FIELD(_offset +  8, _startbit, _stopbit), \
+	[_name##_##3]  = REG_FIELD(_offset + 12, _startbit, _stopbit), \
+	[_name##_##4]  = REG_FIELD(_offset + 16, _startbit, _stopbit), \
+	[_name##_##5]  = REG_FIELD(_offset + 20, _startbit, _stopbit), \
+	[_name##_##6]  = REG_FIELD(_offset + 24, _startbit, _stopbit), \
+	[_name##_##7]  = REG_FIELD(_offset + 28, _startbit, _stopbit), \
+	[_name##_##8]  = REG_FIELD(_offset + 32, _startbit, _stopbit), \
+	[_name##_##9]  = REG_FIELD(_offset + 36, _startbit, _stopbit), \
+	[_name##_##10] = REG_FIELD(_offset + 40, _startbit, _stopbit)
+
+#define REG_FIELD_FOR_EACH_SENSOR16(_name, _offset, _startbit, _stopbit) \
+	[_name##_##0]  = REG_FIELD(_offset,      _startbit, _stopbit),	\
+	[_name##_##1]  = REG_FIELD(_offset +  4, _startbit, _stopbit), \
+	[_name##_##2]  = REG_FIELD(_offset +  8, _startbit, _stopbit), \
+	[_name##_##3]  = REG_FIELD(_offset + 12, _startbit, _stopbit), \
+	[_name##_##4]  = REG_FIELD(_offset + 16, _startbit, _stopbit), \
+	[_name##_##5]  = REG_FIELD(_offset + 20, _startbit, _stopbit), \
+	[_name##_##6]  = REG_FIELD(_offset + 24, _startbit, _stopbit), \
+	[_name##_##7]  = REG_FIELD(_offset + 28, _startbit, _stopbit), \
+	[_name##_##8]  = REG_FIELD(_offset + 32, _startbit, _stopbit), \
+	[_name##_##9]  = REG_FIELD(_offset + 36, _startbit, _stopbit), \
+	[_name##_##10] = REG_FIELD(_offset + 40, _startbit, _stopbit), \
+	[_name##_##11] = REG_FIELD(_offset + 44, _startbit, _stopbit), \
+	[_name##_##12] = REG_FIELD(_offset + 48, _startbit, _stopbit), \
+	[_name##_##13] = REG_FIELD(_offset + 52, _startbit, _stopbit), \
+	[_name##_##14] = REG_FIELD(_offset + 56, _startbit, _stopbit), \
+	[_name##_##15] = REG_FIELD(_offset + 60, _startbit, _stopbit)
+
+#define REG_FIELD_SPLIT_BITS_0_15(_name, _offset)		\
+	[_name##_##0]  = REG_FIELD(_offset,  0,  0),		\
+	[_name##_##1]  = REG_FIELD(_offset,  1,  1),	\
+	[_name##_##2]  = REG_FIELD(_offset,  2,  2),	\
+	[_name##_##3]  = REG_FIELD(_offset,  3,  3),	\
+	[_name##_##4]  = REG_FIELD(_offset,  4,  4),	\
+	[_name##_##5]  = REG_FIELD(_offset,  5,  5),	\
+	[_name##_##6]  = REG_FIELD(_offset,  6,  6),	\
+	[_name##_##7]  = REG_FIELD(_offset,  7,  7),	\
+	[_name##_##8]  = REG_FIELD(_offset,  8,  8),	\
+	[_name##_##9]  = REG_FIELD(_offset,  9,  9),	\
+	[_name##_##10] = REG_FIELD(_offset, 10, 10),	\
+	[_name##_##11] = REG_FIELD(_offset, 11, 11),	\
+	[_name##_##12] = REG_FIELD(_offset, 12, 12),	\
+	[_name##_##13] = REG_FIELD(_offset, 13, 13),	\
+	[_name##_##14] = REG_FIELD(_offset, 14, 14),	\
+	[_name##_##15] = REG_FIELD(_offset, 15, 15)
+
+#define REG_FIELD_SPLIT_BITS_16_31(_name, _offset)		\
+	[_name##_##0]  = REG_FIELD(_offset, 16, 16),		\
+	[_name##_##1]  = REG_FIELD(_offset, 17, 17),	\
+	[_name##_##2]  = REG_FIELD(_offset, 18, 18),	\
+	[_name##_##3]  = REG_FIELD(_offset, 19, 19),	\
+	[_name##_##4]  = REG_FIELD(_offset, 20, 20),	\
+	[_name##_##5]  = REG_FIELD(_offset, 21, 21),	\
+	[_name##_##6]  = REG_FIELD(_offset, 22, 22),	\
+	[_name##_##7]  = REG_FIELD(_offset, 23, 23),	\
+	[_name##_##8]  = REG_FIELD(_offset, 24, 24),	\
+	[_name##_##9]  = REG_FIELD(_offset, 25, 25),	\
+	[_name##_##10] = REG_FIELD(_offset, 26, 26),	\
+	[_name##_##11] = REG_FIELD(_offset, 27, 27),	\
+	[_name##_##12] = REG_FIELD(_offset, 28, 28),	\
+	[_name##_##13] = REG_FIELD(_offset, 29, 29),	\
+	[_name##_##14] = REG_FIELD(_offset, 30, 30),	\
+	[_name##_##15] = REG_FIELD(_offset, 31, 31)
+
+/*
+ * reg_field IDs to use as an index into an array
+ * If you change the order of the entries, check the devm_regmap_field_alloc()
+ * calls in init_common()
+ */
+enum regfield_ids {
+	/* ----- SROT ------ */
+	/* HW_VER */
+	VER_MAJOR,
+	VER_MINOR,
+	VER_STEP,
+	/* CTRL_OFFSET */
+	TSENS_EN,
+	TSENS_SW_RST,
+	SENSOR_EN,
+	CODE_OR_TEMP,
+	MAIN_MEASURE_PERIOD,
+
+	/* ----- TM ------ */
+	/* TRDY */
+	TRDY,
+	/* INTERRUPT ENABLE */
+	INT_EN,	/* v2+ has separate enables for crit, upper and lower irq */
+	/* STATUS */
+	LAST_TEMP_0,	/* Last temperature reading */
+	LAST_TEMP_1,
+	LAST_TEMP_2,
+	LAST_TEMP_3,
+	LAST_TEMP_4,
+	LAST_TEMP_5,
+	LAST_TEMP_6,
+	LAST_TEMP_7,
+	LAST_TEMP_8,
+	LAST_TEMP_9,
+	LAST_TEMP_10,
+	LAST_TEMP_11,
+	LAST_TEMP_12,
+	LAST_TEMP_13,
+	LAST_TEMP_14,
+	LAST_TEMP_15,
+	VALID_0,		/* VALID reading or not */
+	VALID_1,
+	VALID_2,
+	VALID_3,
+	VALID_4,
+	VALID_5,
+	VALID_6,
+	VALID_7,
+	VALID_8,
+	VALID_9,
+	VALID_10,
+	VALID_11,
+	VALID_12,
+	VALID_13,
+	VALID_14,
+	VALID_15,
+	LOWER_STATUS_0,	/* LOWER threshold violated */
+	LOWER_STATUS_1,
+	LOWER_STATUS_2,
+	LOWER_STATUS_3,
+	LOWER_STATUS_4,
+	LOWER_STATUS_5,
+	LOWER_STATUS_6,
+	LOWER_STATUS_7,
+	LOWER_STATUS_8,
+	LOWER_STATUS_9,
+	LOWER_STATUS_10,
+	LOWER_STATUS_11,
+	LOWER_STATUS_12,
+	LOWER_STATUS_13,
+	LOWER_STATUS_14,
+	LOWER_STATUS_15,
+	LOW_INT_STATUS_0,	/* LOWER interrupt status */
+	LOW_INT_STATUS_1,
+	LOW_INT_STATUS_2,
+	LOW_INT_STATUS_3,
+	LOW_INT_STATUS_4,
+	LOW_INT_STATUS_5,
+	LOW_INT_STATUS_6,
+	LOW_INT_STATUS_7,
+	LOW_INT_STATUS_8,
+	LOW_INT_STATUS_9,
+	LOW_INT_STATUS_10,
+	LOW_INT_STATUS_11,
+	LOW_INT_STATUS_12,
+	LOW_INT_STATUS_13,
+	LOW_INT_STATUS_14,
+	LOW_INT_STATUS_15,
+	LOW_INT_CLEAR_0,	/* LOWER interrupt clear */
+	LOW_INT_CLEAR_1,
+	LOW_INT_CLEAR_2,
+	LOW_INT_CLEAR_3,
+	LOW_INT_CLEAR_4,
+	LOW_INT_CLEAR_5,
+	LOW_INT_CLEAR_6,
+	LOW_INT_CLEAR_7,
+	LOW_INT_CLEAR_8,
+	LOW_INT_CLEAR_9,
+	LOW_INT_CLEAR_10,
+	LOW_INT_CLEAR_11,
+	LOW_INT_CLEAR_12,
+	LOW_INT_CLEAR_13,
+	LOW_INT_CLEAR_14,
+	LOW_INT_CLEAR_15,
+	LOW_INT_MASK_0,	/* LOWER interrupt mask */
+	LOW_INT_MASK_1,
+	LOW_INT_MASK_2,
+	LOW_INT_MASK_3,
+	LOW_INT_MASK_4,
+	LOW_INT_MASK_5,
+	LOW_INT_MASK_6,
+	LOW_INT_MASK_7,
+	LOW_INT_MASK_8,
+	LOW_INT_MASK_9,
+	LOW_INT_MASK_10,
+	LOW_INT_MASK_11,
+	LOW_INT_MASK_12,
+	LOW_INT_MASK_13,
+	LOW_INT_MASK_14,
+	LOW_INT_MASK_15,
+	LOW_THRESH_0,		/* LOWER threshold values */
+	LOW_THRESH_1,
+	LOW_THRESH_2,
+	LOW_THRESH_3,
+	LOW_THRESH_4,
+	LOW_THRESH_5,
+	LOW_THRESH_6,
+	LOW_THRESH_7,
+	LOW_THRESH_8,
+	LOW_THRESH_9,
+	LOW_THRESH_10,
+	LOW_THRESH_11,
+	LOW_THRESH_12,
+	LOW_THRESH_13,
+	LOW_THRESH_14,
+	LOW_THRESH_15,
+	UPPER_STATUS_0,	/* UPPER threshold violated */
+	UPPER_STATUS_1,
+	UPPER_STATUS_2,
+	UPPER_STATUS_3,
+	UPPER_STATUS_4,
+	UPPER_STATUS_5,
+	UPPER_STATUS_6,
+	UPPER_STATUS_7,
+	UPPER_STATUS_8,
+	UPPER_STATUS_9,
+	UPPER_STATUS_10,
+	UPPER_STATUS_11,
+	UPPER_STATUS_12,
+	UPPER_STATUS_13,
+	UPPER_STATUS_14,
+	UPPER_STATUS_15,
+	UP_INT_STATUS_0,	/* UPPER interrupt status */
+	UP_INT_STATUS_1,
+	UP_INT_STATUS_2,
+	UP_INT_STATUS_3,
+	UP_INT_STATUS_4,
+	UP_INT_STATUS_5,
+	UP_INT_STATUS_6,
+	UP_INT_STATUS_7,
+	UP_INT_STATUS_8,
+	UP_INT_STATUS_9,
+	UP_INT_STATUS_10,
+	UP_INT_STATUS_11,
+	UP_INT_STATUS_12,
+	UP_INT_STATUS_13,
+	UP_INT_STATUS_14,
+	UP_INT_STATUS_15,
+	UP_INT_CLEAR_0,	/* UPPER interrupt clear */
+	UP_INT_CLEAR_1,
+	UP_INT_CLEAR_2,
+	UP_INT_CLEAR_3,
+	UP_INT_CLEAR_4,
+	UP_INT_CLEAR_5,
+	UP_INT_CLEAR_6,
+	UP_INT_CLEAR_7,
+	UP_INT_CLEAR_8,
+	UP_INT_CLEAR_9,
+	UP_INT_CLEAR_10,
+	UP_INT_CLEAR_11,
+	UP_INT_CLEAR_12,
+	UP_INT_CLEAR_13,
+	UP_INT_CLEAR_14,
+	UP_INT_CLEAR_15,
+	UP_INT_MASK_0,		/* UPPER interrupt mask */
+	UP_INT_MASK_1,
+	UP_INT_MASK_2,
+	UP_INT_MASK_3,
+	UP_INT_MASK_4,
+	UP_INT_MASK_5,
+	UP_INT_MASK_6,
+	UP_INT_MASK_7,
+	UP_INT_MASK_8,
+	UP_INT_MASK_9,
+	UP_INT_MASK_10,
+	UP_INT_MASK_11,
+	UP_INT_MASK_12,
+	UP_INT_MASK_13,
+	UP_INT_MASK_14,
+	UP_INT_MASK_15,
+	UP_THRESH_0,		/* UPPER threshold values */
+	UP_THRESH_1,
+	UP_THRESH_2,
+	UP_THRESH_3,
+	UP_THRESH_4,
+	UP_THRESH_5,
+	UP_THRESH_6,
+	UP_THRESH_7,
+	UP_THRESH_8,
+	UP_THRESH_9,
+	UP_THRESH_10,
+	UP_THRESH_11,
+	UP_THRESH_12,
+	UP_THRESH_13,
+	UP_THRESH_14,
+	UP_THRESH_15,
+	CRITICAL_STATUS_0,	/* CRITICAL threshold violated */
+	CRITICAL_STATUS_1,
+	CRITICAL_STATUS_2,
+	CRITICAL_STATUS_3,
+	CRITICAL_STATUS_4,
+	CRITICAL_STATUS_5,
+	CRITICAL_STATUS_6,
+	CRITICAL_STATUS_7,
+	CRITICAL_STATUS_8,
+	CRITICAL_STATUS_9,
+	CRITICAL_STATUS_10,
+	CRITICAL_STATUS_11,
+	CRITICAL_STATUS_12,
+	CRITICAL_STATUS_13,
+	CRITICAL_STATUS_14,
+	CRITICAL_STATUS_15,
+	CRIT_INT_STATUS_0,	/* CRITICAL interrupt status */
+	CRIT_INT_STATUS_1,
+	CRIT_INT_STATUS_2,
+	CRIT_INT_STATUS_3,
+	CRIT_INT_STATUS_4,
+	CRIT_INT_STATUS_5,
+	CRIT_INT_STATUS_6,
+	CRIT_INT_STATUS_7,
+	CRIT_INT_STATUS_8,
+	CRIT_INT_STATUS_9,
+	CRIT_INT_STATUS_10,
+	CRIT_INT_STATUS_11,
+	CRIT_INT_STATUS_12,
+	CRIT_INT_STATUS_13,
+	CRIT_INT_STATUS_14,
+	CRIT_INT_STATUS_15,
+	CRIT_INT_CLEAR_0,	/* CRITICAL interrupt clear */
+	CRIT_INT_CLEAR_1,
+	CRIT_INT_CLEAR_2,
+	CRIT_INT_CLEAR_3,
+	CRIT_INT_CLEAR_4,
+	CRIT_INT_CLEAR_5,
+	CRIT_INT_CLEAR_6,
+	CRIT_INT_CLEAR_7,
+	CRIT_INT_CLEAR_8,
+	CRIT_INT_CLEAR_9,
+	CRIT_INT_CLEAR_10,
+	CRIT_INT_CLEAR_11,
+	CRIT_INT_CLEAR_12,
+	CRIT_INT_CLEAR_13,
+	CRIT_INT_CLEAR_14,
+	CRIT_INT_CLEAR_15,
+	CRIT_INT_MASK_0,	/* CRITICAL interrupt mask */
+	CRIT_INT_MASK_1,
+	CRIT_INT_MASK_2,
+	CRIT_INT_MASK_3,
+	CRIT_INT_MASK_4,
+	CRIT_INT_MASK_5,
+	CRIT_INT_MASK_6,
+	CRIT_INT_MASK_7,
+	CRIT_INT_MASK_8,
+	CRIT_INT_MASK_9,
+	CRIT_INT_MASK_10,
+	CRIT_INT_MASK_11,
+	CRIT_INT_MASK_12,
+	CRIT_INT_MASK_13,
+	CRIT_INT_MASK_14,
+	CRIT_INT_MASK_15,
+	CRIT_THRESH_0,		/* CRITICAL threshold values */
+	CRIT_THRESH_1,
+	CRIT_THRESH_2,
+	CRIT_THRESH_3,
+	CRIT_THRESH_4,
+	CRIT_THRESH_5,
+	CRIT_THRESH_6,
+	CRIT_THRESH_7,
+	CRIT_THRESH_8,
+	CRIT_THRESH_9,
+	CRIT_THRESH_10,
+	CRIT_THRESH_11,
+	CRIT_THRESH_12,
+	CRIT_THRESH_13,
+	CRIT_THRESH_14,
+	CRIT_THRESH_15,
+
+	/* WATCHDOG */
+	WDOG_BARK_STATUS,
+	WDOG_BARK_CLEAR,
+	WDOG_BARK_MASK,
+	WDOG_BARK_COUNT,
+
+	/* CYCLE COMPLETION MONITOR */
+	CC_MON_STATUS,
+	CC_MON_CLEAR,
+	CC_MON_MASK,
+
+	MIN_STATUS_0,		/* MIN threshold violated */
+	MIN_STATUS_1,
+	MIN_STATUS_2,
+	MIN_STATUS_3,
+	MIN_STATUS_4,
+	MIN_STATUS_5,
+	MIN_STATUS_6,
+	MIN_STATUS_7,
+	MIN_STATUS_8,
+	MIN_STATUS_9,
+	MIN_STATUS_10,
+	MIN_STATUS_11,
+	MIN_STATUS_12,
+	MIN_STATUS_13,
+	MIN_STATUS_14,
+	MIN_STATUS_15,
+	MAX_STATUS_0,		/* MAX threshold violated */
+	MAX_STATUS_1,
+	MAX_STATUS_2,
+	MAX_STATUS_3,
+	MAX_STATUS_4,
+	MAX_STATUS_5,
+	MAX_STATUS_6,
+	MAX_STATUS_7,
+	MAX_STATUS_8,
+	MAX_STATUS_9,
+	MAX_STATUS_10,
+	MAX_STATUS_11,
+	MAX_STATUS_12,
+	MAX_STATUS_13,
+	MAX_STATUS_14,
+	MAX_STATUS_15,
+
+	/* Keep last */
+	MAX_REGFIELDS
+};
+
+/**
+ * struct tsens_features - Features supported by the IP
+ * @ver_major: Major number of IP version
+ * @crit_int: does the IP support critical interrupts?
+ * @combo_int: does the IP use one IRQ for up, low and critical thresholds?
+ * @adc:      do the sensors only output adc code (instead of temperature)?
+ * @srot_split: does the IP neatly splits the register space into SROT and TM,
+ *              with SROT only being available to secure boot firmware?
+ * @has_watchdog: does this IP support watchdog functionality?
+ * @max_sensors: maximum sensors supported by this version of the IP
+ * @trip_min_temp: minimum trip temperature supported by this version of the IP
+ * @trip_max_temp: maximum trip temperature supported by this version of the IP
+ */
+struct tsens_features {
+	unsigned int ver_major;
+	unsigned int crit_int:1;
+	unsigned int combo_int:1;
+	unsigned int adc:1;
+	unsigned int srot_split:1;
+	unsigned int has_watchdog:1;
+	unsigned int max_sensors;
+	int trip_min_temp;
+	int trip_max_temp;
+};
+
+/**
+ * struct tsens_plat_data - tsens compile-time platform data
+ * @num_sensors: Number of sensors supported by platform
+ * @ops: operations the tsens instance supports
+ * @hw_ids: Subset of sensors ids supported by platform, if not the first n
+ * @feat: features of the IP
+ * @fields: bitfield locations
+ * @no_irq_wake: if set, TSENS interrupts will not be configured as wakeup sources
+ */
+struct tsens_plat_data {
+	const u32		num_sensors;
+	const struct tsens_ops	*ops;
+	unsigned int		*hw_ids;
+	struct tsens_features	*feat;
+	const struct reg_field		*fields;
+	bool		no_irq_wake;
+};
+
+/**
+ * struct tsens_context - Registers to be saved/restored across a context loss
+ * @threshold: Threshold register value
+ * @control: Control register value
+ */
+struct tsens_context {
+	int	threshold;
+	int	control;
+};
+
+/**
+ * struct tsens_priv - private data for each instance of the tsens IP
+ * @dev: pointer to struct device
+ * @num_sensors: number of sensors enabled on this device
+ * @tm_map: pointer to TM register address space
+ * @srot_map: pointer to SROT register address space
+ * @tm_offset: deal with old device trees that don't address TM and SROT
+ *             address space separately
+ * @ul_lock: lock while processing upper/lower threshold interrupts
+ * @crit_lock: lock while processing critical threshold interrupts
+ * @rf: array of regmap_fields used to store value of the field
+ * @ctx: registers to be saved and restored during suspend/resume
+ * @feat: features of the IP
+ * @fields: bitfield locations
+ * @ops: pointer to list of callbacks supported by this device
+ * @debug_root: pointer to debugfs dentry for all tsens
+ * @debug: pointer to debugfs dentry for tsens controller
+ * @uplow_irq: IRQ number for uplow (upper/lower) threshold interrupts
+ * @crit_irq: IRQ number for critical threshold interrupts
+ * @combined_irq: IRQ number for combined threshold interrupts
+ * @sensor: list of sensors attached to this device
+ */
+struct tsens_priv {
+	struct device			*dev;
+	u32				num_sensors;
+	struct regmap			*tm_map;
+	struct regmap			*srot_map;
+	u32				tm_offset;
+
+	/* lock for upper/lower threshold interrupts */
+	spinlock_t			ul_lock;
+
+	struct regmap_field		*rf[MAX_REGFIELDS];
+	struct tsens_context		ctx;
+	struct tsens_features		*feat;
+	const struct reg_field		*fields;
+	const struct tsens_ops		*ops;
+
+	struct dentry			*debug_root;
+	struct dentry			*debug;
+
+	int				uplow_irq;
+	int				crit_irq;
+	int				combined_irq;
+
+	struct tsens_sensor		sensor[] __counted_by(num_sensors);
+};
+
+/**
+ * struct tsens_single_value - internal representation of a single field inside nvmem calibration data
+ * @idx: index into the u32 data array
+ * @shift: the shift of the first bit in the value
+ * @blob: index of the data blob to use for this cell
+ */
+struct tsens_single_value {
+	u8 idx;
+	u8 shift;
+	u8 blob;
+};
+
+/**
+ * struct tsens_legacy_calibration_format - description of calibration data used when parsing the legacy nvmem blob
+ * @base_len: the length of the base fields inside calibration data
+ * @base_shift: the shift to be applied to base data
+ * @sp_len: the length of the sN_pM fields inside calibration data
+ * @mode: descriptor of the calibration mode field
+ * @invalid: descriptor of the calibration mode invalid field
+ * @base: descriptors of the base0 and base1 fields
+ * @sp: descriptors of the sN_pM fields
+ */
+struct tsens_legacy_calibration_format {
+	unsigned int base_len;
+	unsigned int base_shift;
+	unsigned int sp_len;
+	/* just two bits */
+	struct tsens_single_value mode;
+	/* on all platforms except 8974 invalid is the third bit of what downstream calls 'mode' */
+	struct tsens_single_value invalid;
+	struct tsens_single_value base[2];
+	struct tsens_single_value sp[][2];
+};
+
+char *qfprom_read(struct device *dev, const char *cname);
+int tsens_read_calibration_legacy(struct tsens_priv *priv,
+				  const struct tsens_legacy_calibration_format *format,
+				  u32 *p1, u32 *p2,
+				  u32 *cdata, u32 *csel);
+int tsens_read_calibration(struct tsens_priv *priv, int shift, u32 *p1, u32 *p2, bool backup);
+int tsens_calibrate_nvmem(struct tsens_priv *priv, int shift);
+int tsens_calibrate_common(struct tsens_priv *priv);
+void compute_intercept_slope(struct tsens_priv *priv, u32 *pt1, u32 *pt2, u32 mode);
+int init_common(struct tsens_priv *priv);
+int get_temp_tsens_valid(const struct tsens_sensor *s, int *temp);
+int get_temp_common(const struct tsens_sensor *s, int *temp);
+#ifdef CONFIG_SUSPEND
+int tsens_resume_common(struct tsens_priv *priv);
+int tsens_suspend_common(struct tsens_priv *priv);
+#else
+static inline int tsens_resume_common(struct tsens_priv *priv)
+{
+	return 0;
+}
+
+static inline int tsens_suspend_common(struct tsens_priv *priv)
+{
+	return 0;
+}
+#endif
+
+/* TSENS target */
+extern struct tsens_plat_data data_8960;
+
+/* TSENS v0.1 targets */
+extern struct tsens_plat_data data_8226, data_8909, data_8916, data_8939, data_8974, data_9607;
+
+/* TSENS v1 targets */
+extern struct tsens_plat_data data_tsens_v1, data_8937, data_8976, data_8956;
+
+/* TSENS v1 with no RPM targets */
+extern const struct tsens_plat_data data_ipq5018;
+
+/* TSENS v2 targets */
+extern struct tsens_plat_data data_8996, data_ipq8074, data_tsens_v2;
+extern const struct tsens_plat_data data_ipq5332, data_ipq5424;
+
+/* TSENS automotive targets */
+extern struct tsens_plat_data data_automotive_v2;
+
+#endif /* __QCOM_TSENS_H__ */