| Message ID | 20170317212315.2561-1-icenowy@aosc.xyz (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Sat, Mar 18, 2017 at 05:23:15AM +0800, Icenowy Zheng wrote: > The bl_en_pin GPIO pinmux is configured as "gpio_in", which makes it > conflicts with the real GPIO usage (out), and makes the backlight not > usable. > > Drop the GPIO pinmux for it, thus this GPIO can be correctly used. > > Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> Applied, thanks! Maxime
diff --git a/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi b/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi index 9f097a3d723d..4ae638901159 100644 --- a/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi +++ b/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi @@ -50,8 +50,6 @@ backlight: backlight { compatible = "pwm-backlight"; - pinctrl-names = "default"; - pinctrl-0 = <&bl_en_pin>; pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>; brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>; default-brightness-level = <8>; @@ -83,11 +81,6 @@ }; &pio { - bl_en_pin: bl_en_pin@0 { - pins = "PH6"; - function = "gpio_in"; - }; - mmc0_cd_pin: mmc0_cd_pin@0 { pins = "PB4"; function = "gpio_in";
The bl_en_pin GPIO pinmux is configured as "gpio_in", which makes it conflicts with the real GPIO usage (out), and makes the backlight not usable. Drop the GPIO pinmux for it, thus this GPIO can be correctly used. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> --- Please patch latest git tree master too, as this issue affects 4.11-rc. arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi | 7 ------- 1 file changed, 7 deletions(-)