add via modify part source code for wm8880 4.4 kitkat

1 files changed, 63 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/drivers/leds/leds-wmt.c b/ANDROID_3.4.5/drivers/leds/leds-wmt.c
new file mode 100755
index 00000000..ca68f671
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/leds/leds-wmt.c
@@ -0,0 +1,63 @@
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
+#include <linux/gpio.h>
+#include <mach/wmt_iomux.h>
+#include <mach/wmt_env.h>
+
+static struct gpio_led gpio_leds[] = {
+	{
+		.name			= "green",
+		.default_trigger	= "timer",
+		.gpio			= WMT_PIN_GP62_WAKEUP3,
+		.active_low		= 0,
+		.default_state		= LEDS_GPIO_DEFSTATE_OFF,
+	},
+};
+
+static struct gpio_led_platform_data gpio_led_info = {
+	.leds		= gpio_leds,
+	.num_leds	= ARRAY_SIZE(gpio_leds),
+};
+
+static struct platform_device wmt_leds = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &gpio_led_info,
+	}
+};
+
+static int parse_charger_param(void)
+{
+	static const char uboot_env[] = "wmt.led.param";
+	char buf[64];
+	size_t l = sizeof(buf);
+	int gpio;
+
+	if (wmt_getsyspara((char *)uboot_env, buf, &l))
+		return -ENODEV;
+
+	sscanf(buf, "%d", &gpio);
+
+	if (!gpio_is_valid(gpio))
+		return -EINVAL;
+
+	gpio_leds[0].gpio = gpio;
+	return 0;
+}
+
+static int __init wmt_leds_init(void)
+{
+	if (parse_charger_param())
+		return -EINVAL;
+
+	return platform_device_register(&wmt_leds);
+}
+
+module_init(wmt_leds_init);
+
+MODULE_LICENSE("GPL");
+