leds-lm3601x.c | Explore in Territory

// SPDX-License-Identifier: GPL-2.0
// Flash and torch driver for Texas Instruments LM3601X LED
// Flash driver chip family
// Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/

#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/leds.h>
#include <linux/led-class-flash.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/slab.h>

#define LM3601X_LED_IR …
#define LM3601X_LED_TORCH …

/* Registers */
#define LM3601X_ENABLE_REG …
#define LM3601X_CFG_REG …
#define LM3601X_LED_FLASH_REG …
#define LM3601X_LED_TORCH_REG …
#define LM3601X_FLAGS_REG …
#define LM3601X_DEV_ID_REG …

#define LM3601X_SW_RESET …

/* Enable Mode bits */
#define LM3601X_MODE_STANDBY …
#define LM3601X_MODE_IR_DRV …
#define LM3601X_MODE_TORCH …
#define LM3601X_MODE_STROBE …
#define LM3601X_STRB_EN …
#define LM3601X_STRB_EDGE_TRIG …
#define LM3601X_IVFM_EN …

#define LM36010_BOOST_LIMIT_28 …
#define LM36010_BOOST_FREQ_4MHZ …
#define LM36010_BOOST_MODE_PASS …

/* Flag Mask */
#define LM3601X_FLASH_TIME_OUT …
#define LM3601X_UVLO_FAULT …
#define LM3601X_THERM_SHUTDOWN …
#define LM3601X_THERM_CURR …
#define LM36010_CURR_LIMIT …
#define LM3601X_SHORT_FAULT …
#define LM3601X_IVFM_TRIP …
#define LM36010_OVP_FAULT …

#define LM3601X_MAX_TORCH_I_UA …
#define LM3601X_MIN_TORCH_I_UA …
#define LM3601X_TORCH_REG_DIV …

#define LM3601X_MAX_STROBE_I_UA …
#define LM3601X_MIN_STROBE_I_UA …
#define LM3601X_STROBE_REG_DIV …

#define LM3601X_TIMEOUT_MASK …
#define LM3601X_ENABLE_MASK …

#define LM3601X_LOWER_STEP_US …
#define LM3601X_UPPER_STEP_US …
#define LM3601X_MIN_TIMEOUT_US …
#define LM3601X_MAX_TIMEOUT_US …
#define LM3601X_TIMEOUT_XOVER_US …

enum lm3601x_type { … };

/**
 * struct lm3601x_led - private lm3601x LED data
 * @fled_cdev: flash LED class device pointer
 * @client: Pointer to the I2C client
 * @regmap: Devices register map
 * @lock: Lock for reading/writing the device
 * @flash_timeout: the timeout for the flash
 * @last_flag: last known flags register value
 * @torch_current_max: maximum current for the torch
 * @flash_current_max: maximum current for the flash
 * @max_flash_timeout: maximum timeout for the flash
 * @led_mode: The mode to enable either IR or Torch
 */
struct lm3601x_led { … };

static const struct reg_default lm3601x_regmap_defs[] = …;

static bool lm3601x_volatile_reg(struct device *dev, unsigned int reg)
{ … }

static const struct regmap_config lm3601x_regmap = …;

static struct lm3601x_led *fled_cdev_to_led(struct led_classdev_flash *fled_cdev)
{ … }

static int lm3601x_read_faults(struct lm3601x_led *led)
{ … }

static int lm3601x_brightness_set(struct led_classdev *cdev,
					enum led_brightness brightness)
{ … }

static int lm3601x_strobe_set(struct led_classdev_flash *fled_cdev,
				bool state)
{ … }

static int lm3601x_flash_brightness_set(struct led_classdev_flash *fled_cdev,
					u32 brightness)
{ … }

static int lm3601x_flash_timeout_set(struct led_classdev_flash *fled_cdev,
				u32 timeout)
{ … }

static int lm3601x_strobe_get(struct led_classdev_flash *fled_cdev, bool *state)
{ … }

static int lm3601x_flash_fault_get(struct led_classdev_flash *fled_cdev,
				u32 *fault)
{ … }

static const struct led_flash_ops flash_ops = …;

static int lm3601x_register_leds(struct lm3601x_led *led,
				 struct fwnode_handle *fwnode)
{ … }

static int lm3601x_parse_node(struct lm3601x_led *led,
			      struct fwnode_handle **fwnode)
{ … }

static int lm3601x_probe(struct i2c_client *client)
{ … }

static void lm3601x_remove(struct i2c_client *client)
{ … }

static const struct i2c_device_id lm3601x_id[] = …;
MODULE_DEVICE_TABLE(i2c, lm3601x_id);

static const struct of_device_id of_lm3601x_leds_match[] = …;
MODULE_DEVICE_TABLE(of, of_lm3601x_leds_match);

static struct i2c_driver lm3601x_i2c_driver = …;
module_i2c_driver(…) …;

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;
linux/drivers/leds/flash/leds-lm3601x.c
