linux-kernel - [PATCH 3/4] ARM: dts: qcom: msm8974-klte: add support for display

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Date:   Wed, 30 Dec 2020 17:51:31 +0200
From:   Iskren Chernev <iskren.chernev@...il.com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Andy Gross <agross@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Iskren Chernev <iskren.chernev@...il.com>,
        ~postmarketos/upstreaming@...ts.sr.ht,
        Samuel Pascua <pascua.samuel.14@...il.com>
Subject: [PATCH 3/4] ARM: dts: qcom: msm8974-klte: add support for display

From: Samuel Pascua <pascua.samuel.14@...il.com>

Add initial support for the display found on the Samsung Galaxy 5 (klte)
phone. This is based on work from Jonathan Marek & Brian Masney.

Please note that this patch depends on dt-binding patch in [1]

[1] https://lkml.org/lkml/2020/12/30/293

Signed-off-by: Samuel Pascua <pascua.samuel.14@...il.com>
---
 .../boot/dts/qcom-msm8974-samsung-klte.dts    | 58 +++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
index 1d5e8abdbda79..8b7e95b748e39 100644
--- a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
+++ b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
@@ -453,6 +453,16 @@ int {
 				bias-pull-down;
 			};
 		};
+
+		panel_pin: panel {
+			te {
+				pins = "gpio12";
+				function = "mdp_vsync";
+
+				drive-strength = <2>;
+				bias-disable;
+			};
+		};
 	};
 
 	sdhc_1: sdhci@...24900 {
@@ -705,6 +715,54 @@ opp_table {
 	adreno@...00000 {
 		status = "ok";
 	};
+
+	mdss@...00000 {
+		status = "ok";
+
+		mdp@...00000 {
+			status = "ok";
+		};
+
+		dsi@...22800 {
+			status = "ok";
+
+			vdda-supply = <&pma8084_l2>;
+			vdd-supply = <&pma8084_l22>;
+			vddio-supply = <&pma8084_l12>;
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			ports {
+				port@1 {
+					endpoint {
+						remote-endpoint = <&panel_in>;
+						data-lanes = <0 1 2 3>;
+					};
+				};
+			};
+
+			panel: panel@0 {
+				reg = <0>;
+				compatible = "samsung,s6e3fa2";
+
+				pinctrl-names = "default";
+				pinctrl-0 = <&panel_pin>;
+
+				port {
+					panel_in: endpoint {
+						remote-endpoint = <&dsi0_out>;
+					};
+				};
+			};
+		};
+
+		dsi-phy@...22a00 {
+			status = "ok";
+
+			vddio-supply = <&pma8084_l12>;
+		};
+	};
 };
 
 &spmi_bus {
-- 
2.29.2