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leds: Add ability to blink via simple trigger 

As blink API is now available, it's possible to add ability to blink via
simple trigger.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
hifive-unleashed-5.1
Vasily Khoruzhick 2011-01-07 16:28:16 +00:00 committed by Anton Vorontsov
parent 51d0756604
commit 0b9536c957
2 changed files with 23 additions and 0 deletions
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20
drivers/leds/led-triggers.c
View File

@ -231,6 +231,26 @@ void led_trigger_event(struct led_trigger *trigger,
}
EXPORT_SYMBOL_GPL(led_trigger_event);
void led_trigger_blink(struct led_trigger *trigger,
unsigned long *delay_on,
unsigned long *delay_off)
{
struct list_head *entry;
if (!trigger)
return;
read_lock(&trigger->leddev_list_lock);
list_for_each(entry, &trigger->led_cdevs) {
struct led_classdev *led_cdev;
led_cdev = list_entry(entry, struct led_classdev, trig_list);
led_blink_set(led_cdev, delay_on, delay_off);
}
read_unlock(&trigger->leddev_list_lock);
}
EXPORT_SYMBOL_GPL(led_trigger_blink);
void led_trigger_register_simple(const char *name, struct led_trigger **tp)
{
struct led_trigger *trigger;

3
include/linux/leds.h
View File

@ -145,6 +145,9 @@ extern void led_trigger_register_simple(const char *name,
extern void led_trigger_unregister_simple(struct led_trigger *trigger);
extern void led_trigger_event(struct led_trigger *trigger,
enum led_brightness event);
extern void led_trigger_blink(struct led_trigger *trigger,
unsigned long *delay_on,
unsigned long *delay_off);
#else