ARM: dts: sun5i: Add backlight node to sun5i-q8-common.dtsi
All A13 based q8 formfactor tablets use the same backlight setup, add
a backlight devicetree node for controlling the backlight on these devices.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
diff --git a/arch/arm/boot/dts/sun5i-q8-common.dtsi b/arch/arm/boot/dts/sun5i-q8-common.dtsi
index 0641d68..a78e189 100644
--- a/arch/arm/boot/dts/sun5i-q8-common.dtsi
+++ b/arch/arm/boot/dts/sun5i-q8-common.dtsi
@@ -41,11 +41,21 @@
*/
#include "sunxi-q8-common.dtsi"
+#include <dt-bindings/pwm/pwm.h>
+
/ {
aliases {
serial0 = &uart1;
};
+ backlight: 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>;
+ /* TODO: backlight uses axp gpio1 as enable pin */
+ };
+
chosen {
stdout-path = "serial0:115200n8";
};