[PATCH 1/2] Documentation: devicetree: add backlight-boot-off property in pwm-backlight

[huang lin]

Add the backlight-boot-ff property, so we can keeping the backlight
disabled at boot until it is enabled implicitly by a panel driver,
or explicitly by userspace.

Signed-off-by: huang lin <hl at rock-chips.com>

---

 Documentation/devicetree/bindings/video/backlight/pwm-backlight.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/video/backlight/pwm-backlight.txt b/Documentation/devicetree/bindings/video/backlight/pwm-backlight.txt
index 764db86..28b0b4d 100644
--- a/Documentation/devicetree/bindings/video/backlight/pwm-backlight.txt
+++ b/Documentation/devicetree/bindings/video/backlight/pwm-backlight.txt
@@ -17,6 +17,7 @@ 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])
+  - backlight-boot-off: turn off backlight when pwm backlight probe
 
 [0]: Documentation/devicetree/bindings/pwm/pwm.txt
 [1]: Documentation/devicetree/bindings/gpio/gpio.txt
-- 
1.9.1