From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- drivers/leds/leds-s3c24xx.c | 83 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 drivers/leds/leds-s3c24xx.c (limited to 'drivers/leds/leds-s3c24xx.c') diff --git a/drivers/leds/leds-s3c24xx.c b/drivers/leds/leds-s3c24xx.c new file mode 100644 index 000000000..3c0c7aa63 --- /dev/null +++ b/drivers/leds/leds-s3c24xx.c @@ -0,0 +1,83 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* drivers/leds/leds-s3c24xx.c + * + * (c) 2006 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks + * + * S3C24XX - LEDs GPIO driver +*/ + +#include +#include +#include +#include +#include +#include +#include + +/* our context */ + +struct s3c24xx_gpio_led { + struct led_classdev cdev; + struct s3c24xx_led_platdata *pdata; + struct gpio_desc *gpiod; +}; + +static inline struct s3c24xx_gpio_led *to_gpio(struct led_classdev *led_cdev) +{ + return container_of(led_cdev, struct s3c24xx_gpio_led, cdev); +} + +static void s3c24xx_led_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct s3c24xx_gpio_led *led = to_gpio(led_cdev); + + gpiod_set_value(led->gpiod, !!value); +} + +static int s3c24xx_led_probe(struct platform_device *dev) +{ + struct s3c24xx_led_platdata *pdata = dev_get_platdata(&dev->dev); + struct s3c24xx_gpio_led *led; + int ret; + + led = devm_kzalloc(&dev->dev, sizeof(struct s3c24xx_gpio_led), + GFP_KERNEL); + if (!led) + return -ENOMEM; + + led->cdev.brightness_set = s3c24xx_led_set; + led->cdev.default_trigger = pdata->def_trigger; + led->cdev.name = pdata->name; + led->cdev.flags |= LED_CORE_SUSPENDRESUME; + + led->pdata = pdata; + + /* Default to off */ + led->gpiod = devm_gpiod_get(&dev->dev, NULL, GPIOD_OUT_LOW); + if (IS_ERR(led->gpiod)) + return PTR_ERR(led->gpiod); + + /* register our new led device */ + ret = devm_led_classdev_register(&dev->dev, &led->cdev); + if (ret < 0) + dev_err(&dev->dev, "led_classdev_register failed\n"); + + return ret; +} + +static struct platform_driver s3c24xx_led_driver = { + .probe = s3c24xx_led_probe, + .driver = { + .name = "s3c24xx_led", + }, +}; + +module_platform_driver(s3c24xx_led_driver); + +MODULE_AUTHOR("Ben Dooks "); +MODULE_DESCRIPTION("S3C24XX LED driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:s3c24xx_led"); -- cgit v1.2.3