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path: root/drivers/leds/leds-gpio.c
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Diffstat (limited to 'drivers/leds/leds-gpio.c')
-rw-r--r--drivers/leds/leds-gpio.c34
1 files changed, 25 insertions, 9 deletions
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index c6e4b772b757..cc22eeefa10b 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -26,7 +26,8 @@ struct gpio_led_data {
u8 new_level;
u8 can_sleep;
u8 active_low;
- int (*platform_gpio_blink_set)(unsigned gpio,
+ u8 blinking;
+ int (*platform_gpio_blink_set)(unsigned gpio, int state,
unsigned long *delay_on, unsigned long *delay_off);
};
@@ -35,7 +36,13 @@ static void gpio_led_work(struct work_struct *work)
struct gpio_led_data *led_dat =
container_of(work, struct gpio_led_data, work);
- gpio_set_value_cansleep(led_dat->gpio, led_dat->new_level);
+ if (led_dat->blinking) {
+ led_dat->platform_gpio_blink_set(led_dat->gpio,
+ led_dat->new_level,
+ NULL, NULL);
+ led_dat->blinking = 0;
+ } else
+ gpio_set_value_cansleep(led_dat->gpio, led_dat->new_level);
}
static void gpio_led_set(struct led_classdev *led_cdev,
@@ -60,8 +67,14 @@ static void gpio_led_set(struct led_classdev *led_cdev,
if (led_dat->can_sleep) {
led_dat->new_level = level;
schedule_work(&led_dat->work);
- } else
- gpio_set_value(led_dat->gpio, level);
+ } else {
+ if (led_dat->blinking) {
+ led_dat->platform_gpio_blink_set(led_dat->gpio, level,
+ NULL, NULL);
+ led_dat->blinking = 0;
+ } else
+ gpio_set_value(led_dat->gpio, level);
+ }
}
static int gpio_blink_set(struct led_classdev *led_cdev,
@@ -70,12 +83,14 @@ static int gpio_blink_set(struct led_classdev *led_cdev,
struct gpio_led_data *led_dat =
container_of(led_cdev, struct gpio_led_data, cdev);
- return led_dat->platform_gpio_blink_set(led_dat->gpio, delay_on, delay_off);
+ led_dat->blinking = 1;
+ return led_dat->platform_gpio_blink_set(led_dat->gpio, GPIO_LED_BLINK,
+ delay_on, delay_off);
}
static int __devinit create_gpio_led(const struct gpio_led *template,
struct gpio_led_data *led_dat, struct device *parent,
- int (*blink_set)(unsigned, unsigned long *, unsigned long *))
+ int (*blink_set)(unsigned, int, unsigned long *, unsigned long *))
{
int ret, state;
@@ -97,6 +112,7 @@ static int __devinit create_gpio_led(const struct gpio_led *template,
led_dat->gpio = template->gpio;
led_dat->can_sleep = gpio_cansleep(template->gpio);
led_dat->active_low = template->active_low;
+ led_dat->blinking = 0;
if (blink_set) {
led_dat->platform_gpio_blink_set = blink_set;
led_dat->cdev.blink_set = gpio_blink_set;
@@ -113,7 +129,7 @@ static int __devinit create_gpio_led(const struct gpio_led *template,
ret = gpio_direction_output(led_dat->gpio, led_dat->active_low ^ state);
if (ret < 0)
goto err;
-
+
INIT_WORK(&led_dat->work, gpio_led_work);
ret = led_classdev_register(parent, &led_dat->cdev);
@@ -211,7 +227,7 @@ struct gpio_led_of_platform_data {
static int __devinit of_gpio_leds_probe(struct of_device *ofdev,
const struct of_device_id *match)
{
- struct device_node *np = ofdev->node, *child;
+ struct device_node *np = ofdev->dev.of_node, *child;
struct gpio_led_of_platform_data *pdata;
int count = 0, ret;
@@ -291,8 +307,8 @@ static struct of_platform_driver of_gpio_leds_driver = {
.driver = {
.name = "of_gpio_leds",
.owner = THIS_MODULE,
+ .of_match_table = of_gpio_leds_match,
},
- .match_table = of_gpio_leds_match,
.probe = of_gpio_leds_probe,
.remove = __devexit_p(of_gpio_leds_remove),
};