From: Siddharth Manthan <siddharth.manthan@xxxxxxxxx>
Most of the Galaxy Grand Prime use backlight drivers controlled with PWM
signal.
To simplify the description, add the backlight with the necessary clk-pwm
to the common dtsi.
Signed-off-by: Siddharth Manthan <siddharth.manthan@xxxxxxxxx>
[Stephan: Move to fortuna-common and disable on rossa-common]
Signed-off-by: Stephan Gerhold <stephan@xxxxxxxxxxx>
[Raymond: Add the commit message]
Signed-off-by: Raymond Hackley <raymondhackley@xxxxxxxxxxxxxx>
---
.../qcom/msm8916-samsung-fortuna-common.dtsi | 36 +++++++++++++++++++
.../qcom/msm8916-samsung-rossa-common.dtsi | 9 +++++
2 files changed, 45 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi b/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi
index 6c66a24ef1af..5e933fb8b363 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi
@@ -26,6 +26,30 @@ tz-apps@85a00000 {
};
};
+ clk_pwm_backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&clk_pwm 0 100000>;
+
+ enable-gpios = <&tlmm 98 GPIO_ACTIVE_HIGH>;
+
+ brightness-levels = <0 255>;
+ num-interpolated-steps = <255>;
+ default-brightness-level = <128>;
+
+ pinctrl-0 = <&backlight_en_default>;
+ pinctrl-names = "default";
+ };
+
+ clk_pwm: pwm {
+ compatible = "clk-pwm";
+ #pwm-cells = <2>;
+
+ clocks = <&gcc GCC_GP2_CLK>;
+
+ pinctrl-0 = <&backlight_pwm_default>;
+ pinctrl-names = "default";
+ };
+
gpio-keys {
compatible = "gpio-keys";
@@ -199,6 +223,18 @@ &wcnss_mem {
};
&tlmm {
+ backlight_en_default: backlight-en-default-state {
+ pins = "gpio98";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
+ backlight_pwm_default: backlight-pwm-default-state {
+ pins = "gpio50";
+ function = "gcc_gp2_clk_a";
+ };
+
fg_alert_default: fg-alert-default-state {
pins = "gpio121";
function = "gpio";
diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi b/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi
index 4048b72efcdc..b438fa81886c 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi
@@ -17,3 +17,12 @@ muic: extcon@14 {
pinctrl-names = "default";
};
};
+
+/* On rossa backlight is controlled with MIPI DCS commands */
+&clk_pwm {
+ status = "disabled";
+};
+
+&clk_pwm_backlight {
+ status = "disabled";
+};
--
2.39.2
