From: huang lin <[email protected]> Add a pwm-delay-us property to specify the delay between setting an initial (non-zero) PWM value and enabling the backlight, and also the delay between disabling the backlight and setting PWM value to 0.
Signed-off-by: huang lin <[email protected]> Signed-off-by: Enric Balletbo i Serra <[email protected]> --- Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt b/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt index 764db86..f75b08f 100644 --- a/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt +++ b/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt @@ -17,6 +17,9 @@ Optional properties: "pwms" property (see PWM binding[0]) - enable-gpios: contains a single GPIO specifier for the GPIO which enables and disables the backlight (see GPIO binding[1]) + - pwm-delay-us: delay between setting an initial (non-zero) PWM value and + enabling the backlight, and also the delay between disabling + the backlight and setting PWM value to 0. [0]: Documentation/devicetree/bindings/pwm/pwm.txt [1]: Documentation/devicetree/bindings/gpio/gpio.txt @@ -32,4 +35,5 @@ Example: power-supply = <&vdd_bl_reg>; enable-gpios = <&gpio 58 0>; + pwm-delay-us = <10000>; }; -- 2.9.3
