729 lines
18 KiB
C
729 lines
18 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* drivers/media/i2c/lm3560.c
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* General device driver for TI lm3559, lm3560, FLASH LED Driver
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*
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* Copyright (C) 2013 Texas Instruments
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*
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* Contact: Daniel Jeong <gshark.jeong@gmail.com>
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* Ldd-Mlp <ldd-mlp@list.ti.com>
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*/
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#include <linux/bitmap.h>
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/gpio/consumer.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/mutex.h>
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#include <linux/pm_runtime.h>
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#include <linux/property.h>
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#include <linux/regmap.h>
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#include <linux/regulator/consumer.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-subdev.h>
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/* registers definitions */
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#define REG_ENABLE 0x10
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#define REG_TORCH_BR 0xa0
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#define REG_FLASH_BR 0xb0
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#define REG_FLASH_TOUT 0xc0
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#define REG_FLAG 0xd0
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#define REG_CONFIG1 0xe0
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/* fault mask */
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#define FAULT_TIMEOUT (1<<0)
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#define FAULT_OVERTEMP (1<<1)
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#define FAULT_SHORT_CIRCUIT (1<<2)
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#define LM3560_FLASH_TOUT_MIN 32
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#define LM3560_FLASH_TOUT_STEP 32
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#define LM3560_FLASH_TOUT_MAX 1024
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#define LM3560_FLASH_TOUT_ms_TO_REG(a) \
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((a) < LM3560_FLASH_TOUT_MIN ? 0 : \
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(((a) - LM3560_FLASH_TOUT_MIN) / LM3560_FLASH_TOUT_STEP))
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#define LM3560_FLASH_TOUT_REG_TO_ms(a) \
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((a) * LM3560_FLASH_TOUT_STEP + LM3560_FLASH_TOUT_MIN)
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enum lm3560_led_id {
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LM3560_LED0 = 0,
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LM3560_LED1,
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LM3560_LED_MAX
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};
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enum lm3560_peak_current {
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LM3560_PEAK_1600mA = 0x00,
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LM3560_PEAK_2300mA = 0x20,
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LM3560_PEAK_3000mA = 0x40,
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LM3560_PEAK_3600mA = 0x60
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};
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enum led_enable {
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MODE_SHDN = 0x0,
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MODE_TORCH = 0x2,
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MODE_FLASH = 0x3,
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};
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struct lm3560_flash_config {
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u32 flash_brt_min_ua;
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u32 flash_brt_max_ua;
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u32 flash_brt_step_ua;
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u32 torch_brt_min_ua;
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u32 torch_brt_max_ua;
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u32 torch_brt_step_ua;
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};
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/**
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* struct lm3560_flash
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*
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* @dev: pointer to &struct device
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* @regmap: reg. map for i2c
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* @lock: muxtex for serial access.
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* @hwen_gpio: line connected to HWEN pin
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* @vin_supply: line connected to IN supply (2.5V - 5.5V)
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* @led_mode: V4L2 LED mode
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* @ctrls_led: V4L2 controls
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* @subdev_led: V4L2 subdev
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* @led_id: LED status holder
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* @peak: peak current
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* @max_flash_timeout: flash timeout
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* @max_flash_brt: flash mode led brightness
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* @max_torch_brt: torch mode led brightness
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* @config: device specific current configuration
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*/
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struct lm3560_flash {
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struct device *dev;
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struct regmap *regmap;
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struct mutex lock;
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struct gpio_desc *hwen_gpio;
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struct regulator *vin_supply;
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enum v4l2_flash_led_mode led_mode;
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struct v4l2_ctrl_handler ctrls_led[LM3560_LED_MAX];
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struct v4l2_subdev subdev_led[LM3560_LED_MAX];
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DECLARE_BITMAP(led_id, LM3560_LED_MAX);
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enum lm3560_peak_current peak;
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u32 max_flash_timeout;
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u32 max_flash_brt[LM3560_LED_MAX];
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u32 max_torch_brt[LM3560_LED_MAX];
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const struct lm3560_flash_config *config;
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};
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#define to_lm3560_flash(_ctrl, _no) \
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container_of(_ctrl->handler, struct lm3560_flash, ctrls_led[_no])
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/* enable mode control */
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static int lm3560_mode_ctrl(struct lm3560_flash *flash)
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{
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int rval = -EINVAL;
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switch (flash->led_mode) {
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case V4L2_FLASH_LED_MODE_NONE:
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rval = regmap_update_bits(flash->regmap,
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REG_ENABLE, 0x03, MODE_SHDN);
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break;
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case V4L2_FLASH_LED_MODE_TORCH:
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rval = regmap_update_bits(flash->regmap,
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REG_ENABLE, 0x03, MODE_TORCH);
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break;
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case V4L2_FLASH_LED_MODE_FLASH:
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rval = regmap_update_bits(flash->regmap,
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REG_ENABLE, 0x03, MODE_FLASH);
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break;
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}
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return rval;
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}
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/* led1/2 enable/disable */
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static int lm3560_enable_ctrl(struct lm3560_flash *flash,
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enum lm3560_led_id led_no, bool on)
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{
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int rval;
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if (led_no == LM3560_LED0) {
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if (on)
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rval = regmap_update_bits(flash->regmap,
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REG_ENABLE, 0x08, 0x08);
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else
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rval = regmap_update_bits(flash->regmap,
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REG_ENABLE, 0x08, 0x00);
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} else {
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if (on)
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rval = regmap_update_bits(flash->regmap,
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REG_ENABLE, 0x10, 0x10);
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else
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rval = regmap_update_bits(flash->regmap,
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REG_ENABLE, 0x10, 0x00);
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}
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return rval;
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}
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/* torch1/2 brightness control */
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static int lm3560_torch_brt_ctrl(struct lm3560_flash *flash,
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enum lm3560_led_id led_no, unsigned int brt)
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{
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const struct lm3560_flash_config *config = flash->config;
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int rval;
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u32 br_bits;
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if (brt < config->torch_brt_min_ua)
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return lm3560_enable_ctrl(flash, led_no, false);
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else
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rval = lm3560_enable_ctrl(flash, led_no, true);
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br_bits = clamp(brt, config->torch_brt_min_ua,
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config->torch_brt_max_ua);
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br_bits = (br_bits - config->torch_brt_min_ua) /
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config->torch_brt_step_ua;
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if (led_no == LM3560_LED0)
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rval = regmap_update_bits(flash->regmap,
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REG_TORCH_BR, 0x07, br_bits);
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else
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rval = regmap_update_bits(flash->regmap,
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REG_TORCH_BR, 0x38, br_bits << 3);
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return rval;
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}
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/* flash1/2 brightness control */
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static int lm3560_flash_brt_ctrl(struct lm3560_flash *flash,
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enum lm3560_led_id led_no, unsigned int brt)
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{
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const struct lm3560_flash_config *config = flash->config;
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int rval;
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u32 br_bits;
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if (brt < config->flash_brt_min_ua)
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return lm3560_enable_ctrl(flash, led_no, false);
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else
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rval = lm3560_enable_ctrl(flash, led_no, true);
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br_bits = clamp(brt, config->flash_brt_min_ua,
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config->flash_brt_max_ua);
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br_bits = (br_bits - config->flash_brt_min_ua) /
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config->flash_brt_step_ua;
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if (led_no == LM3560_LED0)
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rval = regmap_update_bits(flash->regmap,
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REG_FLASH_BR, 0x0f, br_bits);
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else
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rval = regmap_update_bits(flash->regmap,
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REG_FLASH_BR, 0xf0, br_bits << 4);
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return rval;
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}
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/* v4l2 controls */
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static int lm3560_get_ctrl(struct v4l2_ctrl *ctrl, enum lm3560_led_id led_no)
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{
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struct lm3560_flash *flash = to_lm3560_flash(ctrl, led_no);
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int rval = -EINVAL;
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if (!pm_runtime_get_if_active(flash->dev))
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return 0;
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if (ctrl->id == V4L2_CID_FLASH_FAULT) {
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s32 fault = 0;
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unsigned int reg_val;
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rval = regmap_read(flash->regmap, REG_FLAG, ®_val);
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if (rval < 0) {
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pm_runtime_put(flash->dev);
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return rval;
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}
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if (reg_val & FAULT_SHORT_CIRCUIT)
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fault |= V4L2_FLASH_FAULT_SHORT_CIRCUIT;
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if (reg_val & FAULT_OVERTEMP)
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fault |= V4L2_FLASH_FAULT_OVER_TEMPERATURE;
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if (reg_val & FAULT_TIMEOUT)
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fault |= V4L2_FLASH_FAULT_TIMEOUT;
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ctrl->cur.val = fault;
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}
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pm_runtime_put(flash->dev);
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return rval;
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}
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static int lm3560_set_ctrl(struct v4l2_ctrl *ctrl, enum lm3560_led_id led_no)
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{
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struct lm3560_flash *flash = to_lm3560_flash(ctrl, led_no);
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u8 tout_bits;
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int rval = -EINVAL;
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if (!pm_runtime_get_if_active(flash->dev))
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return 0;
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switch (ctrl->id) {
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case V4L2_CID_FLASH_LED_MODE:
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flash->led_mode = ctrl->val;
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if (flash->led_mode != V4L2_FLASH_LED_MODE_FLASH)
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rval = lm3560_mode_ctrl(flash);
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break;
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case V4L2_CID_FLASH_STROBE_SOURCE:
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rval = regmap_update_bits(flash->regmap,
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REG_CONFIG1, 0x04, (ctrl->val) << 2);
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break;
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case V4L2_CID_FLASH_STROBE:
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if (flash->led_mode != V4L2_FLASH_LED_MODE_FLASH) {
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rval = -EBUSY;
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break;
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}
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flash->led_mode = V4L2_FLASH_LED_MODE_FLASH;
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rval = lm3560_mode_ctrl(flash);
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break;
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case V4L2_CID_FLASH_STROBE_STOP:
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if (flash->led_mode != V4L2_FLASH_LED_MODE_FLASH) {
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rval = -EBUSY;
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break;
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}
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flash->led_mode = V4L2_FLASH_LED_MODE_NONE;
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rval = lm3560_mode_ctrl(flash);
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break;
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case V4L2_CID_FLASH_TIMEOUT:
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tout_bits = LM3560_FLASH_TOUT_ms_TO_REG(ctrl->val);
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rval = regmap_update_bits(flash->regmap,
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REG_FLASH_TOUT, 0x1f, tout_bits);
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break;
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case V4L2_CID_FLASH_INTENSITY:
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rval = lm3560_flash_brt_ctrl(flash, led_no, ctrl->val);
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break;
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case V4L2_CID_FLASH_TORCH_INTENSITY:
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rval = lm3560_torch_brt_ctrl(flash, led_no, ctrl->val);
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break;
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}
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pm_runtime_put(flash->dev);
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return rval;
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}
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static int lm3560_led1_get_ctrl(struct v4l2_ctrl *ctrl)
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{
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return lm3560_get_ctrl(ctrl, LM3560_LED1);
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}
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static int lm3560_led1_set_ctrl(struct v4l2_ctrl *ctrl)
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{
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return lm3560_set_ctrl(ctrl, LM3560_LED1);
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}
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static int lm3560_led0_get_ctrl(struct v4l2_ctrl *ctrl)
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{
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return lm3560_get_ctrl(ctrl, LM3560_LED0);
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}
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static int lm3560_led0_set_ctrl(struct v4l2_ctrl *ctrl)
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{
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return lm3560_set_ctrl(ctrl, LM3560_LED0);
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}
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static const struct v4l2_ctrl_ops lm3560_led_ctrl_ops[LM3560_LED_MAX] = {
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[LM3560_LED0] = {
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.g_volatile_ctrl = lm3560_led0_get_ctrl,
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.s_ctrl = lm3560_led0_set_ctrl,
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},
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[LM3560_LED1] = {
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.g_volatile_ctrl = lm3560_led1_get_ctrl,
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.s_ctrl = lm3560_led1_set_ctrl,
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}
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};
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static int lm3560_init_controls(struct lm3560_flash *flash,
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enum lm3560_led_id led_no)
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{
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struct v4l2_ctrl *fault;
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u32 max_flash_brt = flash->max_flash_brt[led_no];
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u32 max_torch_brt = flash->max_torch_brt[led_no];
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struct v4l2_ctrl_handler *hdl = &flash->ctrls_led[led_no];
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const struct v4l2_ctrl_ops *ops = &lm3560_led_ctrl_ops[led_no];
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const struct lm3560_flash_config *config = flash->config;
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v4l2_ctrl_handler_init(hdl, 8);
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/* flash mode */
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v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_FLASH_LED_MODE,
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V4L2_FLASH_LED_MODE_TORCH, ~0x7,
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V4L2_FLASH_LED_MODE_NONE);
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flash->led_mode = V4L2_FLASH_LED_MODE_NONE;
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/* flash source */
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v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_FLASH_STROBE_SOURCE,
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0x1, ~0x3, V4L2_FLASH_STROBE_SOURCE_SOFTWARE);
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/* flash strobe */
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v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_STROBE, 0, 0, 0, 0);
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/* flash strobe stop */
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v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_STROBE_STOP, 0, 0, 0, 0);
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/* flash strobe timeout */
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v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_TIMEOUT,
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LM3560_FLASH_TOUT_MIN,
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flash->max_flash_timeout,
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LM3560_FLASH_TOUT_STEP,
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flash->max_flash_timeout);
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/* flash brt */
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v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_INTENSITY,
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config->flash_brt_min_ua, max_flash_brt,
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config->flash_brt_step_ua, max_flash_brt);
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/* torch brt */
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v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_TORCH_INTENSITY,
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config->torch_brt_min_ua, max_torch_brt,
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config->torch_brt_step_ua, max_torch_brt);
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/* fault */
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fault = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_FAULT, 0,
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V4L2_FLASH_FAULT_OVER_VOLTAGE
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| V4L2_FLASH_FAULT_OVER_TEMPERATURE
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| V4L2_FLASH_FAULT_SHORT_CIRCUIT
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| V4L2_FLASH_FAULT_TIMEOUT, 0, 0);
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if (fault != NULL)
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fault->flags |= V4L2_CTRL_FLAG_VOLATILE;
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hdl->lock = &flash->lock;
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if (hdl->error)
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return hdl->error;
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flash->subdev_led[led_no].ctrl_handler = hdl;
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return 0;
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}
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/* initialize device */
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static const struct v4l2_subdev_ops lm3560_ops = {
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.core = NULL,
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};
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static const struct regmap_config lm3560_regmap = {
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = 0xFF,
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};
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static int lm3560_subdev_init(struct lm3560_flash *flash,
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enum lm3560_led_id led_no,
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struct fwnode_handle *fwnode)
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{
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struct i2c_client *client = to_i2c_client(flash->dev);
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int rval;
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v4l2_i2c_subdev_init(&flash->subdev_led[led_no], client, &lm3560_ops);
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flash->subdev_led[led_no].flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
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snprintf(flash->subdev_led[led_no].name,
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sizeof(flash->subdev_led[led_no].name),
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"lm3560-led%d", led_no);
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flash->subdev_led[led_no].fwnode = fwnode_handle_get(fwnode);
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rval = lm3560_init_controls(flash, led_no);
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if (rval)
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goto err_out;
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rval = media_entity_pads_init(&flash->subdev_led[led_no].entity, 0, NULL);
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if (rval < 0)
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goto err_out;
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flash->subdev_led[led_no].entity.function = MEDIA_ENT_F_FLASH;
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flash->subdev_led[led_no].state_lock = &flash->lock;
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rval = v4l2_async_register_subdev(&flash->subdev_led[led_no]);
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if (rval < 0) {
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dev_err(flash->dev, "failed to register V4L2 subdev");
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goto error_out_media;
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}
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return rval;
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error_out_media:
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media_entity_cleanup(&flash->subdev_led[led_no].entity);
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err_out:
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v4l2_ctrl_handler_free(&flash->ctrls_led[led_no]);
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return rval;
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}
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static int lm3560_init_device(struct lm3560_flash *flash)
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{
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int rval;
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unsigned int reg_val;
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|
|
/* set peak current */
|
|
rval = regmap_update_bits(flash->regmap,
|
|
REG_FLASH_TOUT, 0x60, flash->peak);
|
|
if (rval < 0)
|
|
return rval;
|
|
/* output disable */
|
|
flash->led_mode = V4L2_FLASH_LED_MODE_NONE;
|
|
rval = lm3560_mode_ctrl(flash);
|
|
if (rval < 0)
|
|
return rval;
|
|
/* reset faults */
|
|
rval = regmap_read(flash->regmap, REG_FLAG, ®_val);
|
|
return rval;
|
|
}
|
|
|
|
static int __maybe_unused lm3560_power_off(struct device *dev)
|
|
{
|
|
struct lm3560_flash *flash = dev_get_drvdata(dev);
|
|
|
|
gpiod_set_value_cansleep(flash->hwen_gpio, 0);
|
|
regulator_disable(flash->vin_supply);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __maybe_unused lm3560_power_on(struct device *dev)
|
|
{
|
|
struct lm3560_flash *flash = dev_get_drvdata(dev);
|
|
int rval;
|
|
|
|
rval = regulator_enable(flash->vin_supply);
|
|
if (rval < 0) {
|
|
dev_err(flash->dev, "failed to enable vin power supply\n");
|
|
return rval;
|
|
}
|
|
|
|
gpiod_set_value_cansleep(flash->hwen_gpio, 1);
|
|
|
|
rval = lm3560_init_device(flash);
|
|
if (rval < 0) {
|
|
lm3560_power_off(dev);
|
|
return rval;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void lm3560_subdev_cleanup(struct lm3560_flash *flash)
|
|
{
|
|
int led_no;
|
|
|
|
for_each_set_bit(led_no, flash->led_id, LM3560_LED_MAX) {
|
|
v4l2_async_unregister_subdev(&flash->subdev_led[led_no]);
|
|
v4l2_ctrl_handler_free(&flash->ctrls_led[led_no]);
|
|
media_entity_cleanup(&flash->subdev_led[led_no].entity);
|
|
}
|
|
}
|
|
|
|
static int lm3560_probe(struct i2c_client *client)
|
|
{
|
|
struct lm3560_flash *flash;
|
|
u32 peak_ua;
|
|
int rval;
|
|
|
|
flash = devm_kzalloc(&client->dev, sizeof(*flash), GFP_KERNEL);
|
|
if (flash == NULL)
|
|
return -ENOMEM;
|
|
|
|
flash->config = device_get_match_data(&client->dev);
|
|
if (!flash->config)
|
|
return -ENODEV;
|
|
|
|
flash->regmap = devm_regmap_init_i2c(client, &lm3560_regmap);
|
|
if (IS_ERR(flash->regmap)) {
|
|
rval = PTR_ERR(flash->regmap);
|
|
return rval;
|
|
}
|
|
|
|
flash->dev = &client->dev;
|
|
mutex_init(&flash->lock);
|
|
|
|
bitmap_zero(flash->led_id, LM3560_LED_MAX);
|
|
|
|
flash->hwen_gpio = devm_gpiod_get_optional(flash->dev, "enable",
|
|
GPIOD_OUT_LOW);
|
|
if (IS_ERR(flash->hwen_gpio))
|
|
return dev_err_probe(flash->dev, PTR_ERR(flash->hwen_gpio),
|
|
"failed to get hwen gpio\n");
|
|
|
|
flash->vin_supply = devm_regulator_get(flash->dev, "vin");
|
|
if (IS_ERR(flash->vin_supply))
|
|
return dev_err_probe(flash->dev, PTR_ERR(flash->vin_supply),
|
|
"failed to get vin-supply\n");
|
|
|
|
flash->peak = LM3560_PEAK_1600mA;
|
|
rval = device_property_read_u32(flash->dev,
|
|
"ti,peak-current-microamp", &peak_ua);
|
|
if (!rval) {
|
|
/*
|
|
* LM3559 has lower peak current limit, but
|
|
* bit configuration matches LM3560.
|
|
* Correct current restrictions are enforced
|
|
* by the LM3560 schema.
|
|
*/
|
|
switch (peak_ua) {
|
|
case 1400000:
|
|
case 1600000:
|
|
flash->peak = LM3560_PEAK_1600mA;
|
|
break;
|
|
case 2100000:
|
|
case 2300000:
|
|
flash->peak = LM3560_PEAK_2300mA;
|
|
break;
|
|
case 2700000:
|
|
case 3000000:
|
|
flash->peak = LM3560_PEAK_3000mA;
|
|
break;
|
|
case 3200000:
|
|
case 3600000:
|
|
flash->peak = LM3560_PEAK_3600mA;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
flash->max_flash_timeout = LM3560_FLASH_TOUT_MIN * 1000;
|
|
device_property_read_u32(flash->dev, "flash-max-timeout-us",
|
|
&flash->max_flash_timeout);
|
|
flash->max_flash_timeout /= 1000;
|
|
|
|
rval = regulator_enable(flash->vin_supply);
|
|
if (rval < 0)
|
|
return dev_err_probe(flash->dev, rval,
|
|
"failed to enable vin power supply\n");
|
|
|
|
gpiod_set_value_cansleep(flash->hwen_gpio, 1);
|
|
|
|
rval = lm3560_init_device(flash);
|
|
if (rval < 0)
|
|
goto error_disable;
|
|
|
|
pm_runtime_set_active(flash->dev);
|
|
pm_runtime_enable(flash->dev);
|
|
|
|
device_for_each_child_node_scoped(flash->dev, node) {
|
|
const struct lm3560_flash_config *config = flash->config;
|
|
u32 reg;
|
|
|
|
rval = fwnode_property_read_u32(node, "reg", ®);
|
|
if (rval < 0)
|
|
/* We care only about nodes with reg property */
|
|
continue;
|
|
|
|
if (reg == LM3560_LED0 || reg == LM3560_LED1) {
|
|
flash->max_flash_brt[reg] = config->flash_brt_min_ua;
|
|
fwnode_property_read_u32(node, "flash-max-microamp",
|
|
&flash->max_flash_brt[reg]);
|
|
|
|
flash->max_torch_brt[reg] = config->torch_brt_min_ua;
|
|
fwnode_property_read_u32(node, "led-max-microamp",
|
|
&flash->max_torch_brt[reg]);
|
|
|
|
rval = lm3560_subdev_init(flash, reg, node);
|
|
if (rval < 0) {
|
|
dev_err(flash->dev,
|
|
"failed to register led%d: %d\n",
|
|
reg, rval);
|
|
goto error_clean;
|
|
}
|
|
|
|
set_bit(reg, flash->led_id);
|
|
}
|
|
}
|
|
|
|
i2c_set_clientdata(client, flash);
|
|
|
|
pm_runtime_set_autosuspend_delay(flash->dev, 1000);
|
|
pm_runtime_use_autosuspend(flash->dev);
|
|
pm_runtime_idle(flash->dev);
|
|
|
|
return 0;
|
|
|
|
error_clean:
|
|
pm_runtime_disable(flash->dev);
|
|
pm_runtime_set_suspended(flash->dev);
|
|
|
|
lm3560_subdev_cleanup(flash);
|
|
|
|
error_disable:
|
|
gpiod_set_value_cansleep(flash->hwen_gpio, 0);
|
|
regulator_disable(flash->vin_supply);
|
|
|
|
return rval;
|
|
}
|
|
|
|
static void lm3560_remove(struct i2c_client *client)
|
|
{
|
|
struct lm3560_flash *flash = i2c_get_clientdata(client);
|
|
|
|
lm3560_subdev_cleanup(flash);
|
|
|
|
/*
|
|
* Disable runtime PM. In case runtime PM is disabled in the kernel,
|
|
* make sure to turn power off manually.
|
|
*/
|
|
pm_runtime_disable(&client->dev);
|
|
if (!pm_runtime_status_suspended(&client->dev)) {
|
|
lm3560_power_off(&client->dev);
|
|
pm_runtime_set_suspended(&client->dev);
|
|
}
|
|
}
|
|
|
|
static const struct dev_pm_ops lm3560_pm_ops = {
|
|
SET_RUNTIME_PM_OPS(lm3560_power_off, lm3560_power_on, NULL)
|
|
};
|
|
|
|
static const struct lm3560_flash_config lm3559_config = {
|
|
.flash_brt_min_ua = 56250,
|
|
.flash_brt_max_ua = 900000,
|
|
.flash_brt_step_ua = 56250,
|
|
|
|
.torch_brt_min_ua = 28125,
|
|
.torch_brt_max_ua = 225000,
|
|
.torch_brt_step_ua = 28125,
|
|
};
|
|
|
|
static const struct lm3560_flash_config lm3560_config = {
|
|
.flash_brt_min_ua = 62500,
|
|
.flash_brt_max_ua = 1000000,
|
|
.flash_brt_step_ua = 62500,
|
|
|
|
.torch_brt_min_ua = 31250,
|
|
.torch_brt_max_ua = 250000,
|
|
.torch_brt_step_ua = 31250,
|
|
};
|
|
|
|
static const struct of_device_id lm3560_of_match[] = {
|
|
{ .compatible = "ti,lm3559", .data = &lm3559_config },
|
|
{ .compatible = "ti,lm3560", .data = &lm3560_config },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, lm3560_of_match);
|
|
|
|
static const struct i2c_device_id lm3560_id_table[] = {
|
|
{ .name = "lm3559", .driver_data = (kernel_ulong_t)&lm3559_config },
|
|
{ .name = "lm3560", .driver_data = (kernel_ulong_t)&lm3560_config },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, lm3560_id_table);
|
|
|
|
static struct i2c_driver lm3560_i2c_driver = {
|
|
.driver = {
|
|
.name = "lm3560",
|
|
.pm = pm_ptr(&lm3560_pm_ops),
|
|
.of_match_table = lm3560_of_match,
|
|
},
|
|
.probe = lm3560_probe,
|
|
.remove = lm3560_remove,
|
|
.id_table = lm3560_id_table,
|
|
};
|
|
|
|
module_i2c_driver(lm3560_i2c_driver);
|
|
|
|
MODULE_AUTHOR("Daniel Jeong <gshark.jeong@gmail.com>");
|
|
MODULE_AUTHOR("Ldd Mlp <ldd-mlp@list.ti.com>");
|
|
MODULE_DESCRIPTION("Texas Instruments LM3560 LED flash driver");
|
|
MODULE_LICENSE("GPL");
|