Add a node describing the lcd panel backlight on the UTOO P66 tablet.
Signed-off-by: Hans de Goede <[email protected]>
---
arch/arm/boot/dts/sun5i-a13-utoo-p66.dts | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/arch/arm/boot/dts/sun5i-a13-utoo-p66.dts
b/arch/arm/boot/dts/sun5i-a13-utoo-p66.dts
index eb793d5..5236c1e 100644
--- a/arch/arm/boot/dts/sun5i-a13-utoo-p66.dts
+++ b/arch/arm/boot/dts/sun5i-a13-utoo-p66.dts
@@ -47,11 +47,21 @@
#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 = "Utoo P66";
compatible = "utoo,p66", "allwinner,sun5i-a13";
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
+ /* Note levels of 10 / 20% result in backlight off */
+ brightness-levels = <0 30 40 50 60 70 80 90 100>;
+ default-brightness-level = <6>;
+ /* TODO: backlight uses axp gpio1 as enable pin */
+ };
+
i2c_lcd: i2c@0 {
/* The lcd panel i2c interface is hooked up via gpios */
compatible = "i2c-gpio";
@@ -201,6 +211,12 @@
};
};
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0_pins>;
+ status = "okay";
+};
+
®_dcdc2 {
regulator-always-on;
regulator-min-microvolt = <1000000>;
--
2.5.0
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