Redmi 5A display uses pwm backlight, add support for it.
Signed-off-by: Barnabás Czémán <barnabas.czeman@xxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/msm8917-xiaomi-riva.dts | 25 ++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/msm8917-xiaomi-riva.dts b/arch/arm64/boot/dts/qcom/msm8917-xiaomi-riva.dts
index f1d22535fedd94467ba3f0a88b2110ce5360e7e1..8808306c989f54116052667887f9bf36b63c4c64 100644
--- a/arch/arm64/boot/dts/qcom/msm8917-xiaomi-riva.dts
+++ b/arch/arm64/boot/dts/qcom/msm8917-xiaomi-riva.dts
@@ -20,6 +20,14 @@ / {
qcom,msm-id = <QCOM_ID_MSM8917 0>;
qcom,board-id = <0x1000b 2>, <0x2000b 2>;
+ pwm_backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pm8937_pwm 0 100000>;
+ brightness-levels = <0 255>;
+ num-interpolated-steps = <255>;
+ default-brightness-level = <128>;
+ };
+
battery: battery {
compatible = "simple-battery";
charge-full-design-microamp-hours = <3000000>;
@@ -131,6 +139,23 @@ bq25601@6b{
};
};
+&pm8937_gpios {
+ pwm_enable_default: pwm-enable-default-state {
+ pins = "gpio8";
+ function = "dtest2";
+ output-low;
+ bias-disable;
+ qcom,drive-strength = <2>;
+ };
+};
+
+&pm8937_pwm {
+ pinctrl-0 = <&pwm_enable_default>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
+
&pm8937_resin {
linux,code = <KEY_VOLUMEDOWN>;
--
2.48.1
