151f3b2c3SLinus Walleij // SPDX-License-Identifier: GPL-2.0-only
251f3b2c3SLinus Walleij /*
351f3b2c3SLinus Walleij * LED driver : leds-ktd2692.c
451f3b2c3SLinus Walleij *
551f3b2c3SLinus Walleij * Copyright (C) 2015 Samsung Electronics
651f3b2c3SLinus Walleij * Ingi Kim <ingi2.kim@samsung.com>
751f3b2c3SLinus Walleij */
851f3b2c3SLinus Walleij
951f3b2c3SLinus Walleij #include <linux/err.h>
1051f3b2c3SLinus Walleij #include <linux/gpio/consumer.h>
11*b5a8c50eSDuje Mihanović #include <linux/leds-expresswire.h>
1251f3b2c3SLinus Walleij #include <linux/led-class-flash.h>
1351f3b2c3SLinus Walleij #include <linux/module.h>
1451f3b2c3SLinus Walleij #include <linux/mutex.h>
1551f3b2c3SLinus Walleij #include <linux/of.h>
1651f3b2c3SLinus Walleij #include <linux/platform_device.h>
1751f3b2c3SLinus Walleij #include <linux/regulator/consumer.h>
1851f3b2c3SLinus Walleij
1951f3b2c3SLinus Walleij /* Value related the movie mode */
2051f3b2c3SLinus Walleij #define KTD2692_MOVIE_MODE_CURRENT_LEVELS 16
2151f3b2c3SLinus Walleij #define KTD2692_MM_TO_FL_RATIO(x) ((x) / 3)
2251f3b2c3SLinus Walleij #define KTD2692_MM_MIN_CURR_THRESHOLD_SCALE 8
2351f3b2c3SLinus Walleij
2451f3b2c3SLinus Walleij /* Value related the flash mode */
2551f3b2c3SLinus Walleij #define KTD2692_FLASH_MODE_TIMEOUT_LEVELS 8
2651f3b2c3SLinus Walleij #define KTD2692_FLASH_MODE_TIMEOUT_DISABLE 0
2751f3b2c3SLinus Walleij #define KTD2692_FLASH_MODE_CURR_PERCENT(x) (((x) * 16) / 100)
2851f3b2c3SLinus Walleij
2951f3b2c3SLinus Walleij /* Macro for getting offset of flash timeout */
3051f3b2c3SLinus Walleij #define GET_TIMEOUT_OFFSET(timeout, step) ((timeout) / (step))
3151f3b2c3SLinus Walleij
3251f3b2c3SLinus Walleij /* Base register address */
3351f3b2c3SLinus Walleij #define KTD2692_REG_LVP_BASE 0x00
3451f3b2c3SLinus Walleij #define KTD2692_REG_FLASH_TIMEOUT_BASE 0x20
3551f3b2c3SLinus Walleij #define KTD2692_REG_MM_MIN_CURR_THRESHOLD_BASE 0x40
3651f3b2c3SLinus Walleij #define KTD2692_REG_MOVIE_CURRENT_BASE 0x60
3751f3b2c3SLinus Walleij #define KTD2692_REG_FLASH_CURRENT_BASE 0x80
3851f3b2c3SLinus Walleij #define KTD2692_REG_MODE_BASE 0xA0
3951f3b2c3SLinus Walleij
4051f3b2c3SLinus Walleij /* KTD2692 default length of name */
4151f3b2c3SLinus Walleij #define KTD2692_NAME_LENGTH 20
4251f3b2c3SLinus Walleij
4351f3b2c3SLinus Walleij /* Movie / Flash Mode Control */
4451f3b2c3SLinus Walleij enum ktd2692_led_mode {
4551f3b2c3SLinus Walleij KTD2692_MODE_DISABLE = 0, /* default */
4651f3b2c3SLinus Walleij KTD2692_MODE_MOVIE,
4751f3b2c3SLinus Walleij KTD2692_MODE_FLASH,
4851f3b2c3SLinus Walleij };
4951f3b2c3SLinus Walleij
5051f3b2c3SLinus Walleij struct ktd2692_led_config_data {
5151f3b2c3SLinus Walleij /* maximum LED current in movie mode */
5251f3b2c3SLinus Walleij u32 movie_max_microamp;
5351f3b2c3SLinus Walleij /* maximum LED current in flash mode */
5451f3b2c3SLinus Walleij u32 flash_max_microamp;
5551f3b2c3SLinus Walleij /* maximum flash timeout */
5651f3b2c3SLinus Walleij u32 flash_max_timeout;
5751f3b2c3SLinus Walleij /* max LED brightness level */
5851f3b2c3SLinus Walleij enum led_brightness max_brightness;
5951f3b2c3SLinus Walleij };
6051f3b2c3SLinus Walleij
61*b5a8c50eSDuje Mihanović const struct expresswire_timing ktd2692_timing = {
62*b5a8c50eSDuje Mihanović .poweroff_us = 700,
63*b5a8c50eSDuje Mihanović .data_start_us = 10,
64*b5a8c50eSDuje Mihanović .end_of_data_low_us = 10,
65*b5a8c50eSDuje Mihanović .end_of_data_high_us = 350,
66*b5a8c50eSDuje Mihanović .short_bitset_us = 4,
67*b5a8c50eSDuje Mihanović .long_bitset_us = 12
68*b5a8c50eSDuje Mihanović };
69*b5a8c50eSDuje Mihanović
7051f3b2c3SLinus Walleij struct ktd2692_context {
71*b5a8c50eSDuje Mihanović /* Common ExpressWire properties (ctrl GPIO and timing) */
72*b5a8c50eSDuje Mihanović struct expresswire_common_props props;
73*b5a8c50eSDuje Mihanović
7451f3b2c3SLinus Walleij /* Related LED Flash class device */
7551f3b2c3SLinus Walleij struct led_classdev_flash fled_cdev;
7651f3b2c3SLinus Walleij
7751f3b2c3SLinus Walleij /* secures access to the device */
7851f3b2c3SLinus Walleij struct mutex lock;
7951f3b2c3SLinus Walleij struct regulator *regulator;
8051f3b2c3SLinus Walleij
8151f3b2c3SLinus Walleij struct gpio_desc *aux_gpio;
8251f3b2c3SLinus Walleij
8351f3b2c3SLinus Walleij enum ktd2692_led_mode mode;
8451f3b2c3SLinus Walleij enum led_brightness torch_brightness;
8551f3b2c3SLinus Walleij };
8651f3b2c3SLinus Walleij
fled_cdev_to_led(struct led_classdev_flash * fled_cdev)8751f3b2c3SLinus Walleij static struct ktd2692_context *fled_cdev_to_led(
8851f3b2c3SLinus Walleij struct led_classdev_flash *fled_cdev)
8951f3b2c3SLinus Walleij {
9051f3b2c3SLinus Walleij return container_of(fled_cdev, struct ktd2692_context, fled_cdev);
9151f3b2c3SLinus Walleij }
9251f3b2c3SLinus Walleij
ktd2692_led_brightness_set(struct led_classdev * led_cdev,enum led_brightness brightness)9351f3b2c3SLinus Walleij static int ktd2692_led_brightness_set(struct led_classdev *led_cdev,
9451f3b2c3SLinus Walleij enum led_brightness brightness)
9551f3b2c3SLinus Walleij {
9651f3b2c3SLinus Walleij struct led_classdev_flash *fled_cdev = lcdev_to_flcdev(led_cdev);
9751f3b2c3SLinus Walleij struct ktd2692_context *led = fled_cdev_to_led(fled_cdev);
9851f3b2c3SLinus Walleij
9951f3b2c3SLinus Walleij mutex_lock(&led->lock);
10051f3b2c3SLinus Walleij
10151f3b2c3SLinus Walleij if (brightness == LED_OFF) {
10251f3b2c3SLinus Walleij led->mode = KTD2692_MODE_DISABLE;
103*b5a8c50eSDuje Mihanović gpiod_direction_output(led->aux_gpio, 0);
10451f3b2c3SLinus Walleij } else {
105*b5a8c50eSDuje Mihanović expresswire_write_u8(&led->props, brightness |
10651f3b2c3SLinus Walleij KTD2692_REG_MOVIE_CURRENT_BASE);
10751f3b2c3SLinus Walleij led->mode = KTD2692_MODE_MOVIE;
10851f3b2c3SLinus Walleij }
10951f3b2c3SLinus Walleij
110*b5a8c50eSDuje Mihanović expresswire_write_u8(&led->props, led->mode | KTD2692_REG_MODE_BASE);
11151f3b2c3SLinus Walleij mutex_unlock(&led->lock);
11251f3b2c3SLinus Walleij
11351f3b2c3SLinus Walleij return 0;
11451f3b2c3SLinus Walleij }
11551f3b2c3SLinus Walleij
ktd2692_led_flash_strobe_set(struct led_classdev_flash * fled_cdev,bool state)11651f3b2c3SLinus Walleij static int ktd2692_led_flash_strobe_set(struct led_classdev_flash *fled_cdev,
11751f3b2c3SLinus Walleij bool state)
11851f3b2c3SLinus Walleij {
11951f3b2c3SLinus Walleij struct ktd2692_context *led = fled_cdev_to_led(fled_cdev);
12051f3b2c3SLinus Walleij struct led_flash_setting *timeout = &fled_cdev->timeout;
12151f3b2c3SLinus Walleij u32 flash_tm_reg;
12251f3b2c3SLinus Walleij
12351f3b2c3SLinus Walleij mutex_lock(&led->lock);
12451f3b2c3SLinus Walleij
12551f3b2c3SLinus Walleij if (state) {
12651f3b2c3SLinus Walleij flash_tm_reg = GET_TIMEOUT_OFFSET(timeout->val, timeout->step);
127*b5a8c50eSDuje Mihanović expresswire_write_u8(&led->props, flash_tm_reg
12851f3b2c3SLinus Walleij | KTD2692_REG_FLASH_TIMEOUT_BASE);
12951f3b2c3SLinus Walleij
13051f3b2c3SLinus Walleij led->mode = KTD2692_MODE_FLASH;
131*b5a8c50eSDuje Mihanović gpiod_direction_output(led->aux_gpio, 1);
13251f3b2c3SLinus Walleij } else {
13351f3b2c3SLinus Walleij led->mode = KTD2692_MODE_DISABLE;
134*b5a8c50eSDuje Mihanović gpiod_direction_output(led->aux_gpio, 0);
13551f3b2c3SLinus Walleij }
13651f3b2c3SLinus Walleij
137*b5a8c50eSDuje Mihanović expresswire_write_u8(&led->props, led->mode | KTD2692_REG_MODE_BASE);
13851f3b2c3SLinus Walleij
13951f3b2c3SLinus Walleij fled_cdev->led_cdev.brightness = LED_OFF;
14051f3b2c3SLinus Walleij led->mode = KTD2692_MODE_DISABLE;
14151f3b2c3SLinus Walleij
14251f3b2c3SLinus Walleij mutex_unlock(&led->lock);
14351f3b2c3SLinus Walleij
14451f3b2c3SLinus Walleij return 0;
14551f3b2c3SLinus Walleij }
14651f3b2c3SLinus Walleij
ktd2692_led_flash_timeout_set(struct led_classdev_flash * fled_cdev,u32 timeout)14751f3b2c3SLinus Walleij static int ktd2692_led_flash_timeout_set(struct led_classdev_flash *fled_cdev,
14851f3b2c3SLinus Walleij u32 timeout)
14951f3b2c3SLinus Walleij {
15051f3b2c3SLinus Walleij return 0;
15151f3b2c3SLinus Walleij }
15251f3b2c3SLinus Walleij
ktd2692_init_movie_current_max(struct ktd2692_led_config_data * cfg)15351f3b2c3SLinus Walleij static void ktd2692_init_movie_current_max(struct ktd2692_led_config_data *cfg)
15451f3b2c3SLinus Walleij {
15551f3b2c3SLinus Walleij u32 offset, step;
15651f3b2c3SLinus Walleij u32 movie_current_microamp;
15751f3b2c3SLinus Walleij
15851f3b2c3SLinus Walleij offset = KTD2692_MOVIE_MODE_CURRENT_LEVELS;
15951f3b2c3SLinus Walleij step = KTD2692_MM_TO_FL_RATIO(cfg->flash_max_microamp)
16051f3b2c3SLinus Walleij / KTD2692_MOVIE_MODE_CURRENT_LEVELS;
16151f3b2c3SLinus Walleij
16251f3b2c3SLinus Walleij do {
16351f3b2c3SLinus Walleij movie_current_microamp = step * offset;
16451f3b2c3SLinus Walleij offset--;
16551f3b2c3SLinus Walleij } while ((movie_current_microamp > cfg->movie_max_microamp) &&
16651f3b2c3SLinus Walleij (offset > 0));
16751f3b2c3SLinus Walleij
16851f3b2c3SLinus Walleij cfg->max_brightness = offset;
16951f3b2c3SLinus Walleij }
17051f3b2c3SLinus Walleij
ktd2692_init_flash_timeout(struct led_classdev_flash * fled_cdev,struct ktd2692_led_config_data * cfg)17151f3b2c3SLinus Walleij static void ktd2692_init_flash_timeout(struct led_classdev_flash *fled_cdev,
17251f3b2c3SLinus Walleij struct ktd2692_led_config_data *cfg)
17351f3b2c3SLinus Walleij {
17451f3b2c3SLinus Walleij struct led_flash_setting *setting;
17551f3b2c3SLinus Walleij
17651f3b2c3SLinus Walleij setting = &fled_cdev->timeout;
17751f3b2c3SLinus Walleij setting->min = KTD2692_FLASH_MODE_TIMEOUT_DISABLE;
17851f3b2c3SLinus Walleij setting->max = cfg->flash_max_timeout;
17951f3b2c3SLinus Walleij setting->step = cfg->flash_max_timeout
18051f3b2c3SLinus Walleij / (KTD2692_FLASH_MODE_TIMEOUT_LEVELS - 1);
18151f3b2c3SLinus Walleij setting->val = cfg->flash_max_timeout;
18251f3b2c3SLinus Walleij }
18351f3b2c3SLinus Walleij
ktd2692_setup(struct ktd2692_context * led)18451f3b2c3SLinus Walleij static void ktd2692_setup(struct ktd2692_context *led)
18551f3b2c3SLinus Walleij {
18651f3b2c3SLinus Walleij led->mode = KTD2692_MODE_DISABLE;
187*b5a8c50eSDuje Mihanović expresswire_power_off(&led->props);
188*b5a8c50eSDuje Mihanović gpiod_direction_output(led->aux_gpio, 0);
18951f3b2c3SLinus Walleij
190*b5a8c50eSDuje Mihanović expresswire_write_u8(&led->props, (KTD2692_MM_MIN_CURR_THRESHOLD_SCALE - 1)
19151f3b2c3SLinus Walleij | KTD2692_REG_MM_MIN_CURR_THRESHOLD_BASE);
192*b5a8c50eSDuje Mihanović expresswire_write_u8(&led->props, KTD2692_FLASH_MODE_CURR_PERCENT(45)
19351f3b2c3SLinus Walleij | KTD2692_REG_FLASH_CURRENT_BASE);
19451f3b2c3SLinus Walleij }
19551f3b2c3SLinus Walleij
regulator_disable_action(void * _data)19651f3b2c3SLinus Walleij static void regulator_disable_action(void *_data)
19751f3b2c3SLinus Walleij {
19851f3b2c3SLinus Walleij struct device *dev = _data;
19951f3b2c3SLinus Walleij struct ktd2692_context *led = dev_get_drvdata(dev);
20051f3b2c3SLinus Walleij int ret;
20151f3b2c3SLinus Walleij
20251f3b2c3SLinus Walleij ret = regulator_disable(led->regulator);
20351f3b2c3SLinus Walleij if (ret)
20451f3b2c3SLinus Walleij dev_err(dev, "Failed to disable supply: %d\n", ret);
20551f3b2c3SLinus Walleij }
20651f3b2c3SLinus Walleij
ktd2692_parse_dt(struct ktd2692_context * led,struct device * dev,struct ktd2692_led_config_data * cfg)20751f3b2c3SLinus Walleij static int ktd2692_parse_dt(struct ktd2692_context *led, struct device *dev,
20851f3b2c3SLinus Walleij struct ktd2692_led_config_data *cfg)
20951f3b2c3SLinus Walleij {
21051f3b2c3SLinus Walleij struct device_node *np = dev_of_node(dev);
21151f3b2c3SLinus Walleij struct device_node *child_node;
21251f3b2c3SLinus Walleij int ret;
21351f3b2c3SLinus Walleij
214a05f5d0eSLad Prabhakar if (!np)
21551f3b2c3SLinus Walleij return -ENXIO;
21651f3b2c3SLinus Walleij
217*b5a8c50eSDuje Mihanović led->props.ctrl_gpio = devm_gpiod_get(dev, "ctrl", GPIOD_ASIS);
218*b5a8c50eSDuje Mihanović ret = PTR_ERR_OR_ZERO(led->props.ctrl_gpio);
2191d3b5aaaSMarkuss Broks if (ret)
2201d3b5aaaSMarkuss Broks return dev_err_probe(dev, ret, "cannot get ctrl-gpios\n");
22151f3b2c3SLinus Walleij
22269175786SMarkuss Broks led->aux_gpio = devm_gpiod_get_optional(dev, "aux", GPIOD_ASIS);
22369175786SMarkuss Broks if (IS_ERR(led->aux_gpio))
2241d3b5aaaSMarkuss Broks return dev_err_probe(dev, PTR_ERR(led->aux_gpio), "cannot get aux-gpios\n");
22551f3b2c3SLinus Walleij
22651f3b2c3SLinus Walleij led->regulator = devm_regulator_get(dev, "vin");
22751f3b2c3SLinus Walleij if (IS_ERR(led->regulator))
22851f3b2c3SLinus Walleij led->regulator = NULL;
22951f3b2c3SLinus Walleij
23051f3b2c3SLinus Walleij if (led->regulator) {
23151f3b2c3SLinus Walleij ret = regulator_enable(led->regulator);
23251f3b2c3SLinus Walleij if (ret) {
23351f3b2c3SLinus Walleij dev_err(dev, "Failed to enable supply: %d\n", ret);
23451f3b2c3SLinus Walleij } else {
23551f3b2c3SLinus Walleij ret = devm_add_action_or_reset(dev,
23651f3b2c3SLinus Walleij regulator_disable_action, dev);
23751f3b2c3SLinus Walleij if (ret)
23851f3b2c3SLinus Walleij return ret;
23951f3b2c3SLinus Walleij }
24051f3b2c3SLinus Walleij }
24151f3b2c3SLinus Walleij
24251f3b2c3SLinus Walleij child_node = of_get_next_available_child(np, NULL);
24351f3b2c3SLinus Walleij if (!child_node) {
24451f3b2c3SLinus Walleij dev_err(dev, "No DT child node found for connected LED.\n");
24551f3b2c3SLinus Walleij return -EINVAL;
24651f3b2c3SLinus Walleij }
24751f3b2c3SLinus Walleij
24851f3b2c3SLinus Walleij led->fled_cdev.led_cdev.name =
24951f3b2c3SLinus Walleij of_get_property(child_node, "label", NULL) ? : child_node->name;
25051f3b2c3SLinus Walleij
25151f3b2c3SLinus Walleij ret = of_property_read_u32(child_node, "led-max-microamp",
25251f3b2c3SLinus Walleij &cfg->movie_max_microamp);
25351f3b2c3SLinus Walleij if (ret) {
25451f3b2c3SLinus Walleij dev_err(dev, "failed to parse led-max-microamp\n");
25551f3b2c3SLinus Walleij goto err_parse_dt;
25651f3b2c3SLinus Walleij }
25751f3b2c3SLinus Walleij
25851f3b2c3SLinus Walleij ret = of_property_read_u32(child_node, "flash-max-microamp",
25951f3b2c3SLinus Walleij &cfg->flash_max_microamp);
26051f3b2c3SLinus Walleij if (ret) {
26151f3b2c3SLinus Walleij dev_err(dev, "failed to parse flash-max-microamp\n");
26251f3b2c3SLinus Walleij goto err_parse_dt;
26351f3b2c3SLinus Walleij }
26451f3b2c3SLinus Walleij
26551f3b2c3SLinus Walleij ret = of_property_read_u32(child_node, "flash-max-timeout-us",
26651f3b2c3SLinus Walleij &cfg->flash_max_timeout);
26751f3b2c3SLinus Walleij if (ret) {
26851f3b2c3SLinus Walleij dev_err(dev, "failed to parse flash-max-timeout-us\n");
26951f3b2c3SLinus Walleij goto err_parse_dt;
27051f3b2c3SLinus Walleij }
27151f3b2c3SLinus Walleij
27251f3b2c3SLinus Walleij err_parse_dt:
27351f3b2c3SLinus Walleij of_node_put(child_node);
27451f3b2c3SLinus Walleij return ret;
27551f3b2c3SLinus Walleij }
27651f3b2c3SLinus Walleij
27751f3b2c3SLinus Walleij static const struct led_flash_ops flash_ops = {
27851f3b2c3SLinus Walleij .strobe_set = ktd2692_led_flash_strobe_set,
27951f3b2c3SLinus Walleij .timeout_set = ktd2692_led_flash_timeout_set,
28051f3b2c3SLinus Walleij };
28151f3b2c3SLinus Walleij
ktd2692_probe(struct platform_device * pdev)28251f3b2c3SLinus Walleij static int ktd2692_probe(struct platform_device *pdev)
28351f3b2c3SLinus Walleij {
28451f3b2c3SLinus Walleij struct ktd2692_context *led;
28551f3b2c3SLinus Walleij struct led_classdev *led_cdev;
28651f3b2c3SLinus Walleij struct led_classdev_flash *fled_cdev;
28751f3b2c3SLinus Walleij struct ktd2692_led_config_data led_cfg;
28851f3b2c3SLinus Walleij int ret;
28951f3b2c3SLinus Walleij
29051f3b2c3SLinus Walleij led = devm_kzalloc(&pdev->dev, sizeof(*led), GFP_KERNEL);
29151f3b2c3SLinus Walleij if (!led)
29251f3b2c3SLinus Walleij return -ENOMEM;
29351f3b2c3SLinus Walleij
29451f3b2c3SLinus Walleij fled_cdev = &led->fled_cdev;
29551f3b2c3SLinus Walleij led_cdev = &fled_cdev->led_cdev;
29651f3b2c3SLinus Walleij
29751f3b2c3SLinus Walleij ret = ktd2692_parse_dt(led, &pdev->dev, &led_cfg);
29851f3b2c3SLinus Walleij if (ret)
29951f3b2c3SLinus Walleij return ret;
30051f3b2c3SLinus Walleij
30151f3b2c3SLinus Walleij ktd2692_init_flash_timeout(fled_cdev, &led_cfg);
30251f3b2c3SLinus Walleij ktd2692_init_movie_current_max(&led_cfg);
30351f3b2c3SLinus Walleij
30451f3b2c3SLinus Walleij fled_cdev->ops = &flash_ops;
30551f3b2c3SLinus Walleij
30651f3b2c3SLinus Walleij led_cdev->max_brightness = led_cfg.max_brightness;
30751f3b2c3SLinus Walleij led_cdev->brightness_set_blocking = ktd2692_led_brightness_set;
30851f3b2c3SLinus Walleij led_cdev->flags |= LED_CORE_SUSPENDRESUME | LED_DEV_CAP_FLASH;
30951f3b2c3SLinus Walleij
31051f3b2c3SLinus Walleij mutex_init(&led->lock);
31151f3b2c3SLinus Walleij
31251f3b2c3SLinus Walleij platform_set_drvdata(pdev, led);
31351f3b2c3SLinus Walleij
31451f3b2c3SLinus Walleij ret = led_classdev_flash_register(&pdev->dev, fled_cdev);
31551f3b2c3SLinus Walleij if (ret) {
31651f3b2c3SLinus Walleij dev_err(&pdev->dev, "can't register LED %s\n", led_cdev->name);
31751f3b2c3SLinus Walleij mutex_destroy(&led->lock);
31851f3b2c3SLinus Walleij return ret;
31951f3b2c3SLinus Walleij }
32051f3b2c3SLinus Walleij
32151f3b2c3SLinus Walleij ktd2692_setup(led);
32251f3b2c3SLinus Walleij
32351f3b2c3SLinus Walleij return 0;
32451f3b2c3SLinus Walleij }
32551f3b2c3SLinus Walleij
ktd2692_remove(struct platform_device * pdev)32660613020SUwe Kleine-König static void ktd2692_remove(struct platform_device *pdev)
32751f3b2c3SLinus Walleij {
32851f3b2c3SLinus Walleij struct ktd2692_context *led = platform_get_drvdata(pdev);
32951f3b2c3SLinus Walleij
33051f3b2c3SLinus Walleij led_classdev_flash_unregister(&led->fled_cdev);
33151f3b2c3SLinus Walleij
33251f3b2c3SLinus Walleij mutex_destroy(&led->lock);
33351f3b2c3SLinus Walleij }
33451f3b2c3SLinus Walleij
33551f3b2c3SLinus Walleij static const struct of_device_id ktd2692_match[] = {
33651f3b2c3SLinus Walleij { .compatible = "kinetic,ktd2692", },
33751f3b2c3SLinus Walleij { /* sentinel */ },
33851f3b2c3SLinus Walleij };
33951f3b2c3SLinus Walleij MODULE_DEVICE_TABLE(of, ktd2692_match);
34051f3b2c3SLinus Walleij
34151f3b2c3SLinus Walleij static struct platform_driver ktd2692_driver = {
34251f3b2c3SLinus Walleij .driver = {
34351f3b2c3SLinus Walleij .name = "ktd2692",
34451f3b2c3SLinus Walleij .of_match_table = ktd2692_match,
34551f3b2c3SLinus Walleij },
34651f3b2c3SLinus Walleij .probe = ktd2692_probe,
34760613020SUwe Kleine-König .remove_new = ktd2692_remove,
34851f3b2c3SLinus Walleij };
34951f3b2c3SLinus Walleij
35051f3b2c3SLinus Walleij module_platform_driver(ktd2692_driver);
35151f3b2c3SLinus Walleij
352*b5a8c50eSDuje Mihanović MODULE_IMPORT_NS(EXPRESSWIRE);
35351f3b2c3SLinus Walleij MODULE_AUTHOR("Ingi Kim <ingi2.kim@samsung.com>");
35451f3b2c3SLinus Walleij MODULE_DESCRIPTION("Kinetic KTD2692 LED driver");
35551f3b2c3SLinus Walleij MODULE_LICENSE("GPL v2");
356