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authorHans de Goede <hdegoede@redhat.com>2015-11-20 16:59:07 +0300
committerMaxime Ripard <maxime.ripard@free-electrons.com>2015-11-20 19:36:37 +0300
commit8a7b89d1f674c5202908935267fcade13c83f76e (patch)
tree3d3d8211d1bbf74bc91b87da9a8ce5497e2e01d5
parenta292e576f533070b39547077a5662d33f6c3ed07 (diff)
downloadlinux-8a7b89d1f674c5202908935267fcade13c83f76e.tar.xz
ARM: dts: sun4i: Add backlight node to iNet1 tablet
Add a node describing the lcd panel backlight on the iNet1 tablet. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
-rw-r--r--arch/arm/boot/dts/sun4i-a10-inet1.dts24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sun4i-a10-inet1.dts b/arch/arm/boot/dts/sun4i-a10-inet1.dts
index 0711fa26ca67..d46a141bb847 100644
--- a/arch/arm/boot/dts/sun4i-a10-inet1.dts
+++ b/arch/arm/boot/dts/sun4i-a10-inet1.dts
@@ -47,6 +47,7 @@
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/pinctrl/sun4i-a10.h>
+#include <dt-bindings/pwm/pwm.h>
/ {
model = "iNet-1";
@@ -56,6 +57,16 @@
serial0 = &uart0;
};
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pinctrl-names = "default";
+ pinctrl-0 = <&bl_en_pin_inet>;
+ pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
+ brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
+ default-brightness-level = <8>;
+ enable-gpios = <&pio 7 7 GPIO_ACTIVE_HIGH>; /* PH7 */
+ };
+
chosen {
stdout-path = "serial0:115200n8";
};
@@ -155,6 +166,13 @@
};
&pio {
+ bl_en_pin_inet: bl_en_pin@0 {
+ allwinner,pins = "PH7";
+ allwinner,function = "gpio_out";
+ allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+ allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+ };
+
usb0_id_detect_pin: usb0_id_detect_pin@0 {
allwinner,pins = "PH4";
allwinner,function = "gpio_in";
@@ -170,6 +188,12 @@
};
};
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0_pins_a>;
+ status = "okay";
+};
+
&reg_dcdc2 {
regulator-always-on;
regulator-min-microvolt = <1000000>;