From b0571e7e4ec4d62b27711758417c388042f7bae7 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 6 Apr 2014 15:20:24 -0700 Subject: leds: leds-pwm: add DT support for LEDs wired to supply The non-DT driver allowed an active low property to be specified, but DT is missing this in its description. Add the property to the DT binding document, making it optional. It defaults to active high, which retains compatibility with existing descriptions. This should only be used for causes where the LED is wired to supply, and the PWM does not sensibly support its own inversion. Signed-off-by: Russell King Signed-off-by: Bryan Wu --- drivers/leds/leds-pwm.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/leds') diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c index 8bd225df14de..f5cf1b0f2748 100644 --- a/drivers/leds/leds-pwm.c +++ b/drivers/leds/leds-pwm.c @@ -154,6 +154,7 @@ static int led_pwm_create_of(struct device *dev, struct led_pwm_priv *priv) led.default_trigger = of_get_property(child, "linux,default-trigger", NULL); + led.active_low = of_property_read_bool(child, "active-low"); of_property_read_u32(child, "max-brightness", &led.max_brightness); -- cgit v1.2.3-58-ga151