* [PATCH v2] ARM: dts: sun5i: Add backlight node to sun5i-q8-common.dtsi
@ 2015-09-20 15:21 Hans de Goede
0 siblings, 0 replies; only message in thread
From: Hans de Goede @ 2015-09-20 15:21 UTC (permalink / raw)
To: Maxime Ripard
Cc: Chen-Yu Tsai, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
devicetree, linux-sunxi-/JYPxA39Uh5TLH3MbocFFw, Hans de Goede
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-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
Changes in v2:
-Drop the comment about DCDC1SW, the axp209 used on A13 boards does not
have a DCDC1SW
---
arch/arm/boot/dts/sun5i-q8-common.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
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";
};
--
2.4.3
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