[PATCH v2 2/4] arm64: dts: qcom: sc8180x-primus: Describe the display power net

[Konrad Dybcio]

From: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>

Describe and wire up the power supplies for the eDP panel and its
backlight. Previously, this was only working because of settings
inherited from the bootloader.

Fixes: 2ce38cc1e8fe ("arm64: dts: qcom: sc8180x: Introduce Primus")
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/qcom/sc8180x-primus.dts | 48 ++++++++++++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x-primus.dts b/arch/arm64/boot/dts/qcom/sc8180x-primus.dts
index ffe7c45366ed..e34f4758ebe2 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x-primus.dts
+++ b/arch/arm64/boot/dts/qcom/sc8180x-primus.dts
@@ -29,9 +29,10 @@ backlight: backlight {
 		compatible = "pwm-backlight";
 		pwms = <&pmc8180c_lpg 4 1000000>;
 		enable-gpios = <&pmc8180c_gpios 8 GPIO_ACTIVE_HIGH>;
+		power-supply = <&vled_bl_pw>;
 
-		pinctrl-names = "default";
 		pinctrl-0 = <&bl_pwm_default>;
+		pinctrl-names = "default";
 	};
 
 	chosen {
@@ -167,6 +168,38 @@ reserved-region@9a500000 {
 		};
 	};
 
+	vled_bl_pw: regulator-vled-bl-pw {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VLED_BL_PW";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&pmc8180_2_gpios 1 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&bl_pwr_en>;
+		pinctrl-names = "default";
+
+		regulator-boot-on;
+	};
+
+	vreg_lcm_3v3: regulator-edp-3p3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_LCM_3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&tlmm 130 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&lcm_3v3_en>;
+		pinctrl-names = "default";
+
+		regulator-boot-on;
+	};
+
 	vreg_nvme_0p9: regulator-nvme-0p9 {
 		compatible = "regulator-fixed";
 		regulator-name = "vreg_nvme_0p9";
@@ -540,6 +573,7 @@ &mdss_edp {
 	aux-bus {
 		panel {
 			compatible = "edp-panel";
+			power-supply = <&vreg_lcm_3v3>;
 
 			backlight = <&backlight>;
 
@@ -769,6 +803,12 @@ &wifi {
 };
 
 /* PINCTRL */
+&pmc8180_2_gpios {
+	bl_pwr_en: bl-pwr-en-state {
+		pins = "gpio1";
+		function = "normal";
+	};
+};
 
 &pmc8180c_gpios {
 	bl_pwm_default: bl-pwm-default-state {
@@ -950,4 +990,10 @@ rx-pins {
 			bias-pull-up;
 		};
 	};
+
+	lcm_3v3_en: lcm-3v3-en-state {
+		pins = "gpio130";
+		function = "gpio";
+		bias-disable;
+	};
 };

-- 
2.54.0