Add a backlight for controlling the lcd panel backlight on Wexler TAB7200 tablet
Signed-off-by: Aleksei Mamlin <[email protected]> --- arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts index 1dc9079..f47e5f1 100644 --- a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts +++ b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts @@ -48,6 +48,7 @@ #include <dt-bindings/gpio/gpio.h> #include <dt-bindings/input/input.h> #include <dt-bindings/interrupt-controller/irq.h> +#include <dt-bindings/pwm/pwm.h> / { model = "Wexler TAB7200"; @@ -57,6 +58,16 @@ serial0 = &uart0; }; + backlight { + compatible = "pwm-backlight"; + pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>; + brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>; + default-brightness-level = <8>; + pinctrl-names = "default"; + pinctrl-0 = <&bl_enable_pin>; + enable-gpios = <&pio 7 7 GPIO_ACTIVE_HIGH>; /* PH7 */ + }; + chosen { stdout-path = "serial0:115200n8"; }; @@ -158,6 +169,13 @@ }; &pio { + bl_enable_pin: bl_enable_pin@0 { + allwinner,pins = "PH7"; + allwinner,function = "gpio_out"; + allwinner,drive = <SUN4I_PINCTRL_10_MA>; + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; + }; + ts_reset_pin: ts_reset_pin@0 { allwinner,pins = "PB13"; allwinner,function = "gpio_out"; -- 2.4.10 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
