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ARM: dts: sun7i: Add backlight node to Wexler TAB7200 tablet 

Add a backlight for controlling the lcd panel backlight on Wexler TAB7200 tablet

Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Aleksei Mamlin 2015-12-18 11:52:22 +03:00 committed by Maxime Ripard
parent e7bb896a7f
commit 028997bb92
1 changed files with 18 additions and 0 deletions
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18
arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
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@ -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";