[PATCH v2 2/4] arm64: dts: qcom: shikra-cqm-evk: Enable display and add ili7807s panel

[Nabige Aala <nabige.aala@oss.qualcomm.com>]

From: Arpit Saini <arpit.saini@oss.qualcomm.com>

Enable the Qualcomm Shikra MDSS display subsystem on the Shikra CQM EVK
board and add the DLC0697 MIPI DSI display panel node. Pin pm4125_l5
to 1.232V with regulator-allow-set-load for DSI PHY PLL stability.

Signed-off-by: Arpit Saini <arpit.saini@oss.qualcomm.com>
Signed-off-by: Nabige Aala <nabige.aala@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts | 126 ++++++++++++++++++++++++++++
 1 file changed, 126 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts b/arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts
index 683b5245923b..953b5608928b 100644
--- a/arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts
+++ b/arch/arm64/boot/dts/qcom/shikra-cqm-evk.dts
@@ -23,6 +23,39 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
+	lcd_bias: regulator-lcd-bias {
+		compatible = "regulator-fixed";
+		regulator-name = "lcd_bias";
+		vin-supply = <&vph_pwr>;
+		gpio = <&tlmm 151 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		pinctrl-0 = <&lcd_bias_en>;
+		pinctrl-names = "default";
+	};
+
+	vph_pwr: vph-pwr-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "vph_pwr";
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vreg_disp_n: regulator-vreg-disp-n {
+		compatible = "regulator-fixed";
+		regulator-name = "vreg_disp_n";
+		regulator-min-microvolt = <5500000>;
+		regulator-max-microvolt = <5500000>;
+		vin-supply = <&lcd_bias>;
+	};
+
+	vreg_disp_p: regulator-vreg-disp-p {
+		compatible = "regulator-fixed";
+		regulator-name = "vreg_disp_p";
+		regulator-min-microvolt = <5500000>;
+		regulator-max-microvolt = <5500000>;
+		vin-supply = <&lcd_bias>;
+	};
+
 	wcn3988-pmu {
 		compatible = "qcom,wcn3988-pmu";
 
@@ -60,6 +93,53 @@ vreg_pmu_ch1: ldo4 {
 	};
 };
 
+&mdss {
+	status = "okay";
+};
+
+&mdss_dsi0 {
+	vdda-supply = <&pm4125_l5>;
+
+	status = "okay";
+
+	panel@0 {
+		compatible = "dlc,dlc0697", "ilitek,ili7807s";
+		reg = <0>;
+
+		reset-gpios = <&tlmm 3 GPIO_ACTIVE_LOW>;
+
+		vddi-supply = <&pm4125_l15>;
+		avdd-supply = <&vreg_disp_p>;
+		avee-supply = <&vreg_disp_n>;
+
+		pinctrl-0 = <&panel_rst_n &panel_te_pin &panel_bl_en>;
+		pinctrl-1 = <&panel_rst_n_suspend &panel_bl_en_suspend>;
+		pinctrl-names = "default", "sleep";
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&mdss_dsi0_out>;
+			};
+		};
+	};
+};
+
+&mdss_dsi0_out {
+	remote-endpoint = <&panel_in>;
+	data-lanes = <0 1 2 3>;
+};
+
+&mdss_dsi0_phy {
+	status = "okay";
+};
+
+&pm4125_l5 {
+	/* DSI VDDA - must be at NOM voltage for PHY PLL lock */
+	regulator-min-microvolt = <1232000>;
+	regulator-max-microvolt = <1232000>;
+	regulator-allow-set-load;
+};
+
 &remoteproc_cdsp {
 	firmware-name = "qcom/shikra/cdsp.mbn";
 
@@ -95,6 +175,52 @@ &sdhc_1 {
 	status = "okay";
 };
 
+&tlmm {
+	panel_rst_n: panel-rst-n-state {
+		pins = "gpio3";
+		function = "gpio";
+		drive-strength = <8>;
+		bias-disable;
+	};
+
+	panel_rst_n_suspend: panel-rst-n-suspend-state {
+		pins = "gpio3";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
+	panel_te_pin: panel-te-pin-state {
+		pins = "gpio86";
+		function = "mdp_vsync_p";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
+	panel_bl_en: panel-bl-en-state {
+		pins = "gpio91";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+		output-high;
+	};
+
+	panel_bl_en_suspend: panel-bl-en-suspend-state {
+		pins = "gpio91";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-down;
+		output-low;
+	};
+
+	lcd_bias_en: lcd-bias-en-state {
+		pins = "gpio151";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+};
+
 &uart8 {
 	status = "okay";
 

-- 
2.34.1