From: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Date: Thu, 1 Dec 2022 09:56:29 +0000 (+0200)
Subject: arm64: dts: renesas: white-hawk-cpu: Add DP output support
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=df9645b93a1ac30dd99678597e8bed835216a0d4;p=linux.git

arm64: dts: renesas: white-hawk-cpu: Add DP output support

Add DT nodes needed for the mini DP connector. The DP is driven by
sn65dsi86, which in turn gets the pixel data from the SoC via DSI.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20221201095631.89448-6-tomi.valkeinen+renesas@ideasonboard.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---

diff --git a/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi
index c10740aee9f65..bb4a5270f71b6 100644
--- a/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi
@@ -97,6 +97,27 @@
 		reg = <0x6 0x00000000 0x1 0x00000000>;
 	};
 
+	mini-dp-con {
+		compatible = "dp-connector";
+		label = "CN5";
+		type = "mini";
+
+		port {
+			mini_dp_con_in: endpoint {
+				remote-endpoint = <&sn65dsi86_out>;
+			};
+		};
+	};
+
+	reg_1p2v: regulator-1p2v {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-1.2V";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
 	reg_1p8v: regulator-1p8v {
 		compatible = "regulator-fixed";
 		regulator-name = "fixed-1.8V";
@@ -114,6 +135,12 @@
 		regulator-boot-on;
 		regulator-always-on;
 	};
+
+	sn65dsi86_refclk: clk-x6 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <38400000>;
+	};
 };
 
 &avb0 {
@@ -134,6 +161,23 @@
 	};
 };
 
+&dsi0 {
+	status = "okay";
+
+	ports {
+		port@1 {
+			dsi0_out: endpoint {
+				remote-endpoint = <&sn65dsi86_in>;
+				data-lanes = <1 2 3 4>;
+			};
+		};
+	};
+};
+
+&du {
+	status = "okay";
+};
+
 &extal_clk {
 	clock-frequency = <16666666>;
 };
@@ -172,6 +216,51 @@
 	};
 };
 
+&i2c1 {
+	pinctrl-0 = <&i2c1_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+	clock-frequency = <400000>;
+
+	bridge@2c {
+		compatible = "ti,sn65dsi86";
+		reg = <0x2c>;
+
+		clocks = <&sn65dsi86_refclk>;
+		clock-names = "refclk";
+
+		interrupt-parent = <&intc_ex>;
+		interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+
+		enable-gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
+
+		vccio-supply = <&reg_1p8v>;
+		vpll-supply = <&reg_1p8v>;
+		vcca-supply = <&reg_1p2v>;
+		vcc-supply = <&reg_1p2v>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				sn65dsi86_in: endpoint {
+					remote-endpoint = <&dsi0_out>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+				sn65dsi86_out: endpoint {
+					remote-endpoint = <&mini_dp_con_in>;
+				};
+			};
+		};
+	};
+};
+
 &mmc0 {
 	pinctrl-0 = <&mmc_pins>;
 	pinctrl-1 = <&mmc_pins>;
@@ -221,6 +310,11 @@
 		function = "i2c0";
 	};
 
+	i2c1_pins: i2c1 {
+		groups = "i2c1";
+		function = "i2c1";
+	};
+
 	keys_pins: keys {
 		pins = "GP_5_0", "GP_5_1", "GP_5_2";
 		bias-pull-up;