[PATCH v2 4/4] arm64: dts: qcom: sc8180x-lenovo-flex-5g: 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: 20dea72a393c ("arm64: dts: qcom: sc8180x: Introduce Lenovo Flex 5G")
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
---
 .../arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts | 47 ++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
index 0d2cfb830e83..7601afc3d7bf 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
+++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
@@ -26,6 +26,7 @@ backlight: backlight {
 		compatible = "pwm-backlight";
 		pwms = <&pmc8180c_lpg 4 1000000>;
 		enable-gpios = <&pmc8180c_gpios 8 GPIO_ACTIVE_HIGH>;
+		power-supply = <&vled_bl_pw>;
 
 		pinctrl-0 = <&bl_pwm_default>;
 		pinctrl-names = "default";
@@ -157,6 +158,38 @@ cdsp_mem: cdsp-region@98900000 {
 		};
 	};
 
+	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_s4a_1p8: regulator-pm8150-s4 {
 		compatible = "regulator-fixed";
 		regulator-name = "vreg_s4a_1p8";
@@ -438,6 +471,7 @@ &mdss_edp {
 	aux-bus {
 		panel {
 			compatible = "edp-panel";
+			power-supply = <&vreg_lcm_3v3>;
 			no-hpd;
 
 			backlight = <&backlight>;
@@ -472,6 +506,13 @@ &pcie3_phy {
 	status = "okay";
 };
 
+&pmc8180_2_gpios {
+	bl_pwr_en: bl-pwr-en-state {
+		pins = "gpio1";
+		function = "normal";
+	};
+};
+
 &pmc8180_pwrkey {
 	status = "okay";
 };
@@ -765,6 +806,12 @@ ts_int_default: ts-int-default-state {
 		drive-strength = <2>;
 	};
 
+	lcm_3v3_en: lcm-3v3-en-state {
+		pins = "gpio130";
+		function = "gpio";
+		bias-disable;
+	};
+
 	usbprim_sbu_default: usbprim-sbu-state {
 		oe-n-pins {
 			pins = "gpio152";

-- 
2.54.0