linux-kernel - [PATCH 3/3] arm64: dts: qcom: sm8550-mtp: add DSI panel

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Date:   Wed, 04 Jan 2023 10:18:22 +0100
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH 3/3] arm64: dts: qcom: sm8550-mtp: add DSI panel

Add nodes for the Visionox VTDR6130 found on the SM8550-MTP
device.

TLMM states are also added for the Panel reset GPIO and
Tearing Effect signal for when the panel is running in
DSI Command mode.

Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
 arch/arm64/boot/dts/qcom/sm8550-mtp.dts | 56 +++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
index 5b7e301cc2a2..cbb63a31f0ff 100644
--- a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
@@ -370,6 +370,34 @@ &mdss {
 &mdss_dsi0 {
 	vdda-supply = <&vreg_l3e_1p2>;
 	status = "okay";
+
+	panel@0 {
+		compatible = "visionox,vtdr6130";
+		reg = <0>;
+
+		pinctrl-names = "default", "sleep";
+		pinctrl-0 = <&sde_dsi_active>, <&sde_te_active>;
+		pinctrl-1 = <&sde_dsi_suspend>, <&sde_te_suspend>;
+
+		vddio-supply = <&vreg_l12b_1p8>;
+		vci-supply = <&vreg_l13b_3p0>;
+		vdd-supply = <&vreg_l11b_1p2>;
+
+		reset-gpios = <&tlmm 133 GPIO_ACTIVE_LOW>;
+
+		status = "okay";
+
+		port {
+			panel0_in: endpoint {
+				remote-endpoint = <&mdss_dsi0_out>;
+			};
+		};
+	};
+};
+
+&mdss_dsi0_out {
+	remote-endpoint = <&panel0_in>;
+	data-lanes = <0 1 2 3>;
 };
 
 &mdss_dsi0_phy {
@@ -415,6 +443,34 @@ &sleep_clk {
 
 &tlmm {
 	gpio-reserved-ranges = <32 8>;
+
+	sde_dsi_active: sde-dsi-active-state {
+		pins = "gpio133";
+		function = "gpio";
+		drive-strength = <8>;
+		bias-disable;
+	};
+
+	sde_dsi_suspend: sde-dsi-suspend-state {
+		pins = "gpio133";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
+	sde_te_active: sde-te-active-state {
+		pins = "gpio86";
+		function = "mdp_vsync";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
+	sde_te_suspend: sde-te-suspend-state {
+		pins = "gpio86";
+		function = "mdp_vsync";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
 };
 
 &uart7 {

-- 
2.34.1