[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/leds/leds-s3c24xx.c b/src/kernel/linux/v4.14/drivers/leds/leds-s3c24xx.c
new file mode 100644
index 0000000..404da45
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/leds/leds-s3c24xx.c
@@ -0,0 +1,110 @@
+/* drivers/leds/leds-s3c24xx.c
+ *
+ * (c) 2006 Simtec Electronics
+ * http://armlinux.simtec.co.uk/
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C24XX - LEDs GPIO driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_data/leds-s3c24xx.h>
+
+#include <mach/regs-gpio.h>
+#include <plat/gpio-cfg.h>
+
+/* our context */
+
+struct s3c24xx_gpio_led {
+ struct led_classdev cdev;
+ struct s3c24xx_led_platdata *pdata;
+};
+
+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);
+ struct s3c24xx_led_platdata *pd = led->pdata;
+ int state = (value ? 1 : 0) ^ (pd->flags & S3C24XX_LEDF_ACTLOW);
+
+ /* there will be a short delay between setting the output and
+ * going from output to input when using tristate. */
+
+ gpio_set_value(pd->gpio, state);
+
+ if (pd->flags & S3C24XX_LEDF_TRISTATE) {
+ if (value)
+ gpio_direction_output(pd->gpio, state);
+ else
+ gpio_direction_input(pd->gpio);
+ }
+}
+
+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;
+
+ ret = devm_gpio_request(&dev->dev, pdata->gpio, "S3C24XX_LED");
+ if (ret < 0)
+ return ret;
+
+ /* no point in having a pull-up if we are always driving */
+
+ s3c_gpio_setpull(pdata->gpio, S3C_GPIO_PULL_NONE);
+
+ if (pdata->flags & S3C24XX_LEDF_TRISTATE)
+ gpio_direction_input(pdata->gpio);
+ else
+ gpio_direction_output(pdata->gpio,
+ pdata->flags & S3C24XX_LEDF_ACTLOW ? 1 : 0);
+
+ /* 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 <ben@simtec.co.uk>");
+MODULE_DESCRIPTION("S3C24XX LED driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:s3c24xx_led");