Add helper function to use trigger in hw blink mode.
Add function led_trigger_can_hw_control() that will check if hw_control
ops are defined and if the current trigger match the one supported for
hw_control.
Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx>
---
include/linux/leds.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 06a67c62ed6e..b9152bff3a96 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -425,6 +425,14 @@ void led_trigger_blink_oneshot(struct led_trigger *trigger,
void led_trigger_set_default(struct led_classdev *led_cdev);
int led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger);
void led_trigger_remove(struct led_classdev *led_cdev);
+static inline bool led_trigger_can_hw_control(struct led_classdev *led_cdev)
+{
+ if (!led_cdev->hw_control_get || !led_cdev->hw_control_set ||
+ !led_cdev->hw_control_is_supported)
+ return false;
+
+ return !strcmp(led_cdev->hw_control_trigger, led_cdev->trigger->name);
+}
static inline void led_set_trigger_data(struct led_classdev *led_cdev,
void *trigger_data)
--
2.39.2
