[PATCH 1/3] arm64: dts: qcom: c630: add panel bridge 1p2 regulator

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The VCC and VCCA supplies of the DSI<->eDP bridge are derived from
vreg_l2a_1p2 and controlled by a GPIO on the PMIC. Add the regulator
here so Linux can control it.

Signed-off-by: Caleb Connolly <caleb.connolly@xxxxxxxxxx>
---
 .../boot/dts/qcom/sdm850-lenovo-yoga-c630.dts      | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
index 22a7d997cdb0..94e37e5d2177 100644
--- a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
+++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
@@ -80,6 +80,22 @@ adsp_mem: memory@8c600000 {
 		};
 	};
 
+	sw_edp_1p2: edp-1p2-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "sw_edp_1p2";
+
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&sw_edp_1p2_en>;
+
+		gpio = <&pm8998_gpios 9 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		vin-supply = <&vreg_l2a_1p2>;
+	};
+
 	sn65dsi86_refclk: sn65dsi86-refclk {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
@@ -425,6 +441,8 @@ sn65dsi86: bridge@2c {
 
 		enable-gpios = <&tlmm 96 GPIO_ACTIVE_HIGH>;
 
+		vcca-supply = <&sw_edp_1p2>;
+		vcc-supply = <&sw_edp_1p2>;
 		vpll-supply = <&vreg_l14a_1p88>;
 		vccio-supply = <&vreg_l14a_1p88>;
 
@@ -500,6 +518,18 @@ &mss_pil {
 	firmware-name = "qcom/sdm850/LENOVO/81JL/qcdsp1v2850.mbn", "qcom/sdm850/LENOVO/81JL/qcdsp2850.mbn";
 };
 
+&pm8998_gpios {
+	/* This pin is pulled down by a fixed resistor */
+	sw_edp_1p2_en: pm8998-gpio9-state {
+		pinconf {
+			pins = "gpio9";
+			function = "normal";
+			bias-disable;
+			qcom,drive-strength = <0>;
+		};
+	};
+};
+
 &qup_i2c10_default {
 	drive-strength = <2>;
 	bias-disable;

-- 
2.41.0




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