Re: [PATCH v2 2/3] leds: sy7802: Add support for Silergy SY7802 flash LED controller

From: Lee Jones
Date: Thu Apr 11 2024 - 08:50:23 EST

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On Mon, 01 Apr 2024, André Apitzsch via B4 Relay wrote:

> From: André Apitzsch <git@xxxxxxxxxxx>
>
> Add support for SY7802 flash LED controller. It can support up to 1.8A
> flash current.

This is a very small commit message for a 500+ line change!

Please, tell us more.

> Signed-off-by: André Apitzsch <git@xxxxxxxxxxx>
> ---
> drivers/leds/flash/Kconfig | 11 +
> drivers/leds/flash/Makefile | 1 +
> drivers/leds/flash/leds-sy7802.c | 532 +++++++++++++++++++++++++++++++++++++++
> 3 files changed, 544 insertions(+)
>
> diff --git a/drivers/leds/flash/Kconfig b/drivers/leds/flash/Kconfig
> index 809b6d98bb3e..f39f0bfe6eef 100644
> --- a/drivers/leds/flash/Kconfig
> +++ b/drivers/leds/flash/Kconfig
> @@ -121,4 +121,15 @@ config LEDS_SGM3140
> This option enables support for the SGM3140 500mA Buck/Boost Charge
> Pump LED Driver.
>
> +config LEDS_SY7802
> + tristate "LED support for the Silergy SY7802"
> + depends on I2C && OF
> + depends on GPIOLIB
> + select REGMAP_I2C
> + help
> + This option enables support for the SY7802 flash LED controller.
> + SY7802 includes torch and flash functions with programmable current.
> +
> + This driver can be built as a module, it will be called "leds-sy7802".
> +
> endif # LEDS_CLASS_FLASH
> diff --git a/drivers/leds/flash/Makefile b/drivers/leds/flash/Makefile
> index 91d60a4b7952..48860eeced79 100644
> --- a/drivers/leds/flash/Makefile
> +++ b/drivers/leds/flash/Makefile
> @@ -11,3 +11,4 @@ obj-$(CONFIG_LEDS_QCOM_FLASH) += leds-qcom-flash.o
> obj-$(CONFIG_LEDS_RT4505) += leds-rt4505.o
> obj-$(CONFIG_LEDS_RT8515) += leds-rt8515.o
> obj-$(CONFIG_LEDS_SGM3140) += leds-sgm3140.o
> +obj-$(CONFIG_LEDS_SY7802) += leds-sy7802.o
> diff --git a/drivers/leds/flash/leds-sy7802.c b/drivers/leds/flash/leds-sy7802.c
> new file mode 100644
> index 000000000000..c03a571b0e08
> --- /dev/null
> +++ b/drivers/leds/flash/leds-sy7802.c
> @@ -0,0 +1,532 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Silergy SY7802 flash LED driver with I2C interface
> + *
> + * Copyright 2024 André Apitzsch <git@xxxxxxxxxxx>
> + */
> +
> +#include <linux/gpio/consumer.h>
> +#include <linux/i2c.h>
> +#include <linux/kernel.h>
> +#include <linux/led-class-flash.h>
> +#include <linux/module.h>
> +#include <linux/mutex.h>
> +#include <linux/regmap.h>
> +#include <linux/regulator/consumer.h>
> +
> +#define SY7802_MAX_LEDS 2
> +#define SY7802_LED_JOINT 2
> +
> +#define SY7802_REG_ENABLE 0x10
> +#define SY7802_REG_TORCH_BRIGHTNESS 0xa0
> +#define SY7802_REG_FLASH_BRIGHTNESS 0xb0
> +#define SY7802_REG_FLASH_DURATION 0xc0
> +#define SY7802_REG_FLAGS 0xd0
> +#define SY7802_REG_CONFIG_1 0xe0
> +#define SY7802_REG_CONFIG_2 0xf0
> +#define SY7802_REG_VIN_MONITOR 0x80
> +#define SY7802_REG_LAST_FLASH 0x81
> +#define SY7802_REG_VLED_MONITOR 0x30
> +#define SY7802_REG_ADC_DELAY 0x31
> +#define SY7802_REG_DEV_ID 0xff
> +
> +#define SY7802_MODE_OFF 0
> +#define SY7802_MODE_TORCH 2
> +#define SY7802_MODE_FLASH 3
> +#define SY7802_MODE_MASK GENMASK(1, 0)
> +
> +#define SY7802_LEDS_SHIFT 3
> +#define SY7802_LEDS_MASK(_id) (BIT(_id) << SY7802_LEDS_SHIFT)
> +#define SY7802_LEDS_MASK_ALL (SY7802_LEDS_MASK(0) | SY7802_LEDS_MASK(1))
> +
> +#define SY7802_TORCH_CURRENT_SHIFT 3
> +#define SY7802_TORCH_CURRENT_MASK(_id) \
> + (GENMASK(2, 0) << (SY7802_TORCH_CURRENT_SHIFT * (_id)))
> +#define SY7802_TORCH_CURRENT_MASK_ALL \
> + (SY7802_TORCH_CURRENT_MASK(0) | SY7802_TORCH_CURRENT_MASK(1))
> +
> +#define SY7802_FLASH_CURRENT_SHIFT 4
> +#define SY7802_FLASH_CURRENT_MASK(_id) \
> + (GENMASK(3, 0) << (SY7802_FLASH_CURRENT_SHIFT * (_id)))
> +#define SY7802_FLASH_CURRENT_MASK_ALL \
> + (SY7802_FLASH_CURRENT_MASK(0) | SY7802_FLASH_CURRENT_MASK(1))
> +
> +#define SY7802_TIMEOUT_DEFAULT_US 512000U
> +#define SY7802_TIMEOUT_MIN_US 32000U
> +#define SY7802_TIMEOUT_MAX_US 1024000U
> +#define SY7802_TIMEOUT_STEPSIZE_US 32000U
> +
> +#define SY7802_TORCH_BRIGHTNESS_MAX 8
> +
> +#define SY7802_FLASH_BRIGHTNESS_DEFAULT 14
> +#define SY7802_FLASH_BRIGHTNESS_MIN 0
> +#define SY7802_FLASH_BRIGHTNESS_MAX 15
> +#define SY7802_FLASH_BRIGHTNESS_STEP 1

Much nicer to read if everything was aligned.

> +#define SY7802_FLAG_TIMEOUT (1 << 0)
> +#define SY7802_FLAG_THERMAL_SHUTDOWN (1 << 1)
> +#define SY7802_FLAG_LED_FAULT (1 << 2)
> +#define SY7802_FLAG_TX1_INTERRUPT (1 << 3)
> +#define SY7802_FLAG_TX2_INTERRUPT (1 << 4)
> +#define SY7802_FLAG_LED_THERMAL_FAULT (1 << 5)
> +#define SY7802_FLAG_FLASH_INPUT_VOLTAGE_LOW (1 << 6)
> +#define SY7802_FLAG_INPUT_VOLTAGE_LOW (1 << 7)

Why not BIT()?

> +#define SY7802_CHIP_ID 0x51
> +
> +static const struct reg_default sy7802_regmap_defs[] = {
> + { SY7802_REG_ENABLE, SY7802_LEDS_MASK_ALL },
> + { SY7802_REG_TORCH_BRIGHTNESS, 0x92 },
> + { SY7802_REG_FLASH_BRIGHTNESS, SY7802_FLASH_BRIGHTNESS_DEFAULT |
> + SY7802_FLASH_BRIGHTNESS_DEFAULT << SY7802_FLASH_CURRENT_SHIFT },
> + { SY7802_REG_FLASH_DURATION, 0x6f },
> + { SY7802_REG_FLAGS, 0x0 },
> + { SY7802_REG_CONFIG_1, 0x68 },
> + { SY7802_REG_CONFIG_2, 0xf0 },
> +};
> +
> +struct sy7802_led {
> + struct led_classdev_flash flash;
> + struct sy7802 *chip;
> + u8 led_no;

Is this LED number or no LED?

How about led_num or led_id?

> +};
> +
> +struct sy7802 {
> + struct mutex mutex;

Place the big stuff (like struct device and regmap at the top).

> + struct device *dev;
> + struct regmap *regmap;
> +
> + struct gpio_desc *enable_gpio;
> + struct regulator *vin_regulator;
> +
> + unsigned int fled_strobe_used;
> + unsigned int fled_torch_used;
> + unsigned int leds_active;
> + int num_leds;
> + struct sy7802_led leds[] __counted_by(num_leds);
> +};
> +
> +static int sy7802_torch_brightness_set(struct led_classdev *lcdev, enum led_brightness level)

s/level/brightness/

> +{
> + struct sy7802_led *led = container_of(lcdev, struct sy7802_led, flash.led_cdev);
> + u32 led_enable_mask = led->led_no == SY7802_LED_JOINT ? SY7802_LEDS_MASK_ALL :
> + SY7802_LEDS_MASK(led->led_no);

Do all of the fancy multi-line assignment outside of the declaration block.

> + u32 enable_mask = SY7802_MODE_MASK | led_enable_mask;
> + u32 val = level ? led_enable_mask : SY7802_MODE_OFF;
> + struct sy7802 *chip = led->chip;
> + u32 curr;

This is a temporary placeholder for fled_torch_used, right?

fled_torch_used_tmp? Sometimes abbreviated to tmp.

> + u32 mask;

That's a lot of masks. Which one is this?

> + int ret;
> +
> + mutex_lock(&chip->mutex);
> +
> + /*
> + * There is only one set of flash control logic, and this flag is used to check if 'strobe'

The ',' before 'and' is superfluous.

> + * is currently being used.
> + */

Doesn't the variable name kind of imply this?

> + if (chip->fled_strobe_used) {
> + dev_warn(chip->dev, "Please disable strobe first [%d]\n", chip->fled_strobe_used);

"Cannot set torch brightness whilst strobe is enabled"

> + ret = -EBUSY;
> + goto unlock;
> + }
> +
> + if (level)
> + curr = chip->fled_torch_used | BIT(led->led_no);
> + else
> + curr = chip->fled_torch_used & ~BIT(led->led_no);
> +
> + if (curr)
> + val |= SY7802_MODE_TORCH;
> +
> + /* Torch needs to be disabled first to apply new brightness */

"Disable touch to apply brightness"

> + ret = regmap_update_bits(chip->regmap, SY7802_REG_ENABLE, SY7802_MODE_MASK,
> + SY7802_MODE_OFF);
> + if (ret)
> + goto unlock;
> +
> + mask = led->led_no == SY7802_LED_JOINT ? SY7802_TORCH_CURRENT_MASK_ALL :

Why not just use led->led_no in place of mask?

Easier to read if you drop SY7802_TORCH_CURRENT_MASK_ALL to its own line.

> + SY7802_TORCH_CURRENT_MASK(led->led_no);
> +
> + /* Register expects brightness between 0 and MAX_BRIGHTNESS - 1 */
> + if (level)
> + level -= 1;
> +
> + level |= (level << SY7802_TORCH_CURRENT_SHIFT);
> +
> + ret = regmap_update_bits(chip->regmap, SY7802_REG_TORCH_BRIGHTNESS, mask, level);
> + if (ret)
> + goto unlock;
> +
> + ret = regmap_update_bits(chip->regmap, SY7802_REG_ENABLE, enable_mask, val);
> + if (ret)
> + goto unlock;
> +
> + chip->fled_torch_used = curr;
> +
> +unlock:
> + mutex_unlock(&chip->mutex);
> + return ret;
> +}
> +
> +static int sy7802_flash_brightness_set(struct led_classdev_flash *fl_cdev, u32 brightness)
> +{
> + struct sy7802_led *led = container_of(fl_cdev, struct sy7802_led, flash);
> + struct led_flash_setting *s = &fl_cdev->brightness;
> + u32 val = (brightness - s->min) / s->step;
> + struct sy7802 *chip = led->chip;
> + u32 mask;
> + int ret;
> +
> + val |= (val << SY7802_FLASH_CURRENT_SHIFT);
> + mask = led->led_no == SY7802_LED_JOINT ? SY7802_FLASH_CURRENT_MASK_ALL :
> + SY7802_FLASH_CURRENT_MASK(led->led_no);
> +
> + mutex_lock(&chip->mutex);
> + ret = regmap_update_bits(chip->regmap, SY7802_REG_FLASH_BRIGHTNESS, mask, val);
> + mutex_unlock(&chip->mutex);
> +
> + return ret;
> +}
> +
> +static int sy7802_strobe_set(struct led_classdev_flash *fl_cdev, bool state)

Same comments as above apply throughout the driver.

> +{
> + struct sy7802_led *led = container_of(fl_cdev, struct sy7802_led, flash);
> + u32 led_enable_mask = led->led_no == SY7802_LED_JOINT ? SY7802_LEDS_MASK_ALL :
> + SY7802_LEDS_MASK(led->led_no);
> + u32 enable_mask = SY7802_MODE_MASK | led_enable_mask;
> + u32 val = state ? led_enable_mask : SY7802_MODE_OFF;
> + struct sy7802 *chip = led->chip;
> + u32 curr;
> + int ret;
> +
> + mutex_lock(&chip->mutex);
> +
> + /*
> + * There is only one set of flash control logic, and this flag is used to check if 'torch'
> + * is currently being used.
> + */
> + if (chip->fled_torch_used) {
> + dev_warn(chip->dev, "Please disable torch first [0x%x]\n", chip->fled_torch_used);
> + ret = -EBUSY;
> + goto unlock;
> + }
> +
> + if (state)
> + curr = chip->fled_strobe_used | BIT(led->led_no);
> + else
> + curr = chip->fled_strobe_used & ~BIT(led->led_no);
> +
> + if (curr)
> + val |= SY7802_MODE_FLASH;
> +
> + ret = regmap_update_bits(chip->regmap, SY7802_REG_ENABLE, enable_mask, val);
> +
> + if (ret)
> + goto unlock;
> +
> + chip->fled_strobe_used = curr;
> +
> +unlock:
> + mutex_unlock(&chip->mutex);
> + return ret;
> +}
> +
> +static int sy7802_strobe_get(struct led_classdev_flash *fl_cdev, bool *state)
> +{
> + struct sy7802_led *led = container_of(fl_cdev, struct sy7802_led, flash);
> + struct sy7802 *chip = led->chip;
> +
> + mutex_lock(&chip->mutex);
> + *state = !!(chip->fled_strobe_used & BIT(led->led_no));
> + mutex_unlock(&chip->mutex);
> +
> + return 0;
> +}
> +
> +static int sy7802_timeout_set(struct led_classdev_flash *fl_cdev,
> + u32 timeout)
> +{
> + struct sy7802_led *led = container_of(fl_cdev, struct sy7802_led, flash);
> + struct led_flash_setting *s = &fl_cdev->timeout;
> + u32 val = (timeout - s->min) / s->step;
> + struct sy7802 *chip = led->chip;
> +
> + return regmap_write(chip->regmap, SY7802_REG_FLASH_DURATION, val);
> +}
> +
> +static int sy7802_fault_get(struct led_classdev_flash *fl_cdev, u32 *fault)
> +{
> + struct sy7802_led *led = container_of(fl_cdev, struct sy7802_led, flash);
> + struct sy7802 *chip = led->chip;
> + u32 val, led_faults = 0;
> + int ret;
> +
> + /* NOTE: reading register clears fault status */
> + ret = regmap_read(chip->regmap, SY7802_REG_FLAGS, &val);
> + if (ret)
> + return ret;
> +
> + if (val & (SY7802_FLAG_FLASH_INPUT_VOLTAGE_LOW | SY7802_FLAG_INPUT_VOLTAGE_LOW))
> + led_faults |= LED_FAULT_INPUT_VOLTAGE;
> +
> + if (val & SY7802_FLAG_THERMAL_SHUTDOWN)
> + led_faults |= LED_FAULT_OVER_TEMPERATURE;
> +
> + if (val & SY7802_FLAG_TIMEOUT)
> + led_faults |= LED_FAULT_TIMEOUT;
> +
> + *fault = led_faults;
> + return 0;
> +}
> +
> +static const struct led_flash_ops sy7802_flash_ops = {
> + .flash_brightness_set = sy7802_flash_brightness_set,
> + .strobe_set = sy7802_strobe_set,
> + .strobe_get = sy7802_strobe_get,
> + .timeout_set = sy7802_timeout_set,
> + .fault_get = sy7802_fault_get,
> +};
> +
> +static void sy7802_init_flash_brightness(struct led_classdev_flash *fl_cdev)
> +{
> + struct led_flash_setting *s;
> +
> + /* Init flash brightness setting */
> + s = &fl_cdev->brightness;
> + s->min = SY7802_FLASH_BRIGHTNESS_MIN;
> + s->max = SY7802_FLASH_BRIGHTNESS_MAX;
> + s->step = SY7802_FLASH_BRIGHTNESS_STEP;
> + s->val = SY7802_FLASH_BRIGHTNESS_DEFAULT;
> +}
> +
> +static void sy7802_init_flash_timeout(struct led_classdev_flash *fl_cdev)
> +{
> + struct led_flash_setting *s;
> +
> + /* Init flash timeout setting */
> + s = &fl_cdev->timeout;
> + s->min = SY7802_TIMEOUT_MIN_US;
> + s->max = SY7802_TIMEOUT_MAX_US;
> + s->step = SY7802_TIMEOUT_STEPSIZE_US;
> + s->val = SY7802_TIMEOUT_DEFAULT_US;
> +}
> +
> +static int sy7802_led_register(struct device *dev, struct sy7802_led *led,
> + struct device_node *np)
> +{
> + struct led_init_data init_data = {};
> + int ret;
> +
> + init_data.fwnode = of_fwnode_handle(np);
> +
> + ret = devm_led_classdev_flash_register_ext(dev, &led->flash, &init_data);
> + if (ret) {
> + dev_err(dev, "Couldn't register flash %d\n", led->led_no);
> + return ret;
> + }
> +
> + return ret;
> +}
> +
> +static int sy7802_init_flash_properties(struct device *dev, struct sy7802_led *led,
> + struct device_node *np)
> +{
> + struct led_classdev_flash *flash = &led->flash;
> + struct led_classdev *lcdev = &flash->led_cdev;
> + u32 sources[SY7802_MAX_LEDS];
> + int i, num, ret;
> +
> + num = of_property_count_u32_elems(np, "led-sources");
> + if (num < 1) {
> + dev_err(dev, "Not specified or wrong number of led-sources\n");
> + return -EINVAL;
> + }
> +
> + ret = of_property_read_u32_array(np, "led-sources", sources, num);
> + if (ret)
> + return ret;
> +
> + for (i = 0; i < num; i++) {
> + if (sources[i] >= SY7802_MAX_LEDS)
> + return -EINVAL;
> + if (led->chip->leds_active & BIT(sources[i]))
> + return -EINVAL;
> + led->chip->leds_active |= BIT(sources[i]);
> + }
> +
> + /* If both channels are specified in 'led-sources', joint flash output mode is used */
> + led->led_no = num == 2 ? SY7802_LED_JOINT : sources[0];
> +
> + lcdev->max_brightness = SY7802_TORCH_BRIGHTNESS_MAX;
> + lcdev->brightness_set_blocking = sy7802_torch_brightness_set;
> + lcdev->flags |= LED_DEV_CAP_FLASH;
> +
> + flash->ops = &sy7802_flash_ops;
> +
> + sy7802_init_flash_brightness(flash);
> + sy7802_init_flash_timeout(flash);
> +
> + return 0;
> +}
> +
> +static int sy7802_chip_check(struct sy7802 *chip)
> +{
> + struct device *dev = chip->dev;
> + u32 chipid;
> + int ret;
> +
> + ret = regmap_read(chip->regmap, SY7802_REG_DEV_ID, &chipid);
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to read chip ID\n");
> +
> + if (chipid != SY7802_CHIP_ID)
> + return dev_err_probe(dev, -ENODEV, "Chip reported wrong ID: %x\n", chipid);

"Unsupported chip detected"

> +
> + return 0;
> +}
> +
> +static void sy7802_enable(struct sy7802 *chip)
> +{
> + gpiod_set_value_cansleep(chip->enable_gpio, 1);
> + usleep_range(200, 300);
> +}
> +
> +static void sy7802_disable(struct sy7802 *chip)
> +{
> + gpiod_set_value_cansleep(chip->enable_gpio, 0);
> +}
> +
> +static int sy7802_probe_dt(struct sy7802 *chip)
> +{
> + struct device_node *np = dev_of_node(chip->dev), *child;

This is ugly. Place 'child' on a separate line.

> + int i = 0;

If you're going to use a variable like this, rename it.

'count' or 'child_num' perhaps.

And reset/assign it just before you're going to use it for clarity.

> + int ret;
> +
> + regmap_write(chip->regmap, SY7802_REG_ENABLE, SY7802_MODE_OFF);
> + regmap_write(chip->regmap, SY7802_REG_TORCH_BRIGHTNESS, LED_OFF);
> +

child_num = 0;
> + for_each_available_child_of_node(np, child) {
> + struct sy7802_led *led = chip->leds + i;
> +
> + led->chip = chip;
> + led->led_no = i;
> +
> + ret = sy7802_init_flash_properties(chip->dev, led, child);
> + if (ret) {
> + of_node_put(child);
> + return ret;
> + }
> +
> + ret = sy7802_led_register(chip->dev, led, child);
> + if (ret) {
> + of_node_put(child);
> + return ret;
> + }
> +
> + i++;
> + }
> + return 0;
> +}
> +
> +static const struct regmap_config sy7802_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .max_register = 0xff,
> + .cache_type = REGCACHE_MAPLE,
> + .reg_defaults = sy7802_regmap_defs,
> + .num_reg_defaults = ARRAY_SIZE(sy7802_regmap_defs),
> +};
> +
> +static int sy7802_probe(struct i2c_client *client)
> +{
> + struct device *dev = &client->dev;
> + struct sy7802 *chip;
> + size_t count;
> + int ret;
> +
> + count = device_get_child_node_count(dev);
> + if (!count || count > SY7802_MAX_LEDS)
> + return dev_err_probe(dev, -EINVAL,
> + "No child node or node count over max led number %zu\n", count);

Split them up and report on them individually or combine the error message:

"Invalid amount of LED nodes"

> + chip = devm_kzalloc(dev, struct_size(chip, leds, count), GFP_KERNEL);
> + if (!chip)
> + return -ENOMEM;
> +
> + chip->num_leds = count;
> +
> + chip->dev = dev;
> + i2c_set_clientdata(client, chip);
> +
> + chip->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
> + ret = PTR_ERR_OR_ZERO(chip->enable_gpio);
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to request enable gpio\n");
> +
> + chip->vin_regulator = devm_regulator_get(dev, "vin");
> + ret = PTR_ERR_OR_ZERO(chip->vin_regulator);
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to request regulator\n");
> +
> + ret = regulator_enable(chip->vin_regulator);
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to enable regulator\n");
> +
> + chip->regmap = devm_regmap_init_i2c(client, &sy7802_regmap_config);
> + if (IS_ERR(chip->regmap)) {
> + regulator_disable(chip->vin_regulator);

Nicer to use gotos for the error path.

3 calls to regulator_disable() is avoidable.

> + return dev_err_probe(dev, PTR_ERR(chip->regmap),
> + "Failed to allocate register map.\n");
> + }
> +
> + ret = sy7802_probe_dt(chip);
> + if (ret < 0) {
> + regulator_disable(chip->vin_regulator);
> + return ret;
> + }
> +
> + sy7802_enable(chip);
> +
> + ret = sy7802_chip_check(chip);
> + if (ret) {
> + sy7802_disable(chip);
> + regulator_disable(chip->vin_regulator);
> + return ret;
> + }
> +
> + mutex_init(&chip->mutex);
> +
> + return ret;
> +}
> +
> +static void sy7802_remove(struct i2c_client *client)
> +{
> + struct sy7802 *chip = i2c_get_clientdata(client);
> +
> + sy7802_disable(chip);
> +
> + mutex_destroy(&chip->mutex);
> + regulator_disable(chip->vin_regulator);
> +}
> +
> +static const struct of_device_id __maybe_unused sy7802_leds_match[] = {
> + { .compatible = "silergy,sy7802", },
> + {}
> +};
> +
> +MODULE_DEVICE_TABLE(of, sy7802_leds_match);
> +
> +static struct i2c_driver sy7802_driver = {
> + .driver = {
> + .name = "sy7802",
> + .of_match_table = of_match_ptr(sy7802_leds_match),
> + },
> + .probe = sy7802_probe,
> + .remove = sy7802_remove,
> +};
> +
> +module_i2c_driver(sy7802_driver);
> +
> +MODULE_AUTHOR("André Apitzsch <git@xxxxxxxxxxx>");
> +MODULE_DESCRIPTION("Silergy SY7802 flash LED driver");
> +MODULE_LICENSE("GPL");
>
> --
> 2.44.0
>
>

--
Lee Jones [李琼斯]

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