linux-kernel - [PATCH v2 2/2] arm64: dts: mediatek: mt8183-pumpkin: add HDMI support

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Message-Id: <20220426164547.434324-2-fparent@baylibre.com>
Date:   Tue, 26 Apr 2022 18:45:47 +0200
From:   Fabien Parent <fparent@...libre.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     Fabien Parent <fparent@...libre.com>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/2] arm64: dts: mediatek: mt8183-pumpkin: add HDMI support

The MT8183 Pumpkin board has a micro-HDMI connector. HDMI support is
provided by an IT66121 DPI <-> HDMI bridge.

This commit enables DPI and add the node for the IT66121 bridge.

Signed-off-by: Fabien Parent <fparent@...libre.com>
---
v2: rename pinctrl node names to not include any underscore

 .../boot/dts/mediatek/mt8183-pumpkin.dts      | 121 ++++++++++++++++++
 1 file changed, 121 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts b/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts
index ee912825cfc6..10b2c0500219 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts
@@ -62,6 +62,18 @@ ntc {
 		pulldown-ohm = <0>;
 		io-channels = <&auxadc 0>;
 	};
+
+	connector {
+		compatible = "hdmi-connector";
+		label = "hdmi";
+		type = "d";
+
+		port {
+			hdmi_connector_in: endpoint {
+				remote-endpoint = <&hdmi_connector_out>;
+			};
+		};
+	};
 };
 
 &auxadc {
@@ -120,6 +132,41 @@ &i2c6 {
 	pinctrl-0 = <&i2c6_pins>;
 	status = "okay";
 	clock-frequency = <100000>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	it66121hdmitx: hdmitx@4c {
+		compatible = "ite,it66121";
+		pinctrl-names = "default";
+		pinctrl-0 = <&ite_pins>;
+		vcn33-supply = <&mt6358_vcn33_wifi_reg>;
+		vcn18-supply = <&mt6358_vcn18_reg>;
+		vrf12-supply = <&mt6358_vrf12_reg>;
+		reset-gpios = <&pio 160 GPIO_ACTIVE_LOW>;
+		interrupt-parent = <&pio>;
+		interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
+		reg = <0x4c>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				it66121_in: endpoint {
+					bus-width = <12>;
+					remote-endpoint = <&dpi_out>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+				hdmi_connector_out: endpoint {
+					remote-endpoint = <&hdmi_connector_in>;
+				};
+			};
+		};
+	};
 };
 
 &mmc0 {
@@ -332,6 +379,67 @@ pins_clk {
 			input-enable;
 		};
 	};
+
+	ite_pins: ite-pins {
+		pins-irq {
+			pinmux = <PINMUX_GPIO4__FUNC_GPIO4>;
+			input-enable;
+			bias-pull-up;
+		};
+
+		pins-rst {
+			pinmux = <PINMUX_GPIO160__FUNC_GPIO160>;
+			output-high;
+		};
+	};
+
+	dpi_func_pins: dpi-func-pins {
+		pins-dpi {
+			pinmux = <PINMUX_GPIO12__FUNC_I2S5_BCK>,
+				 <PINMUX_GPIO46__FUNC_I2S5_LRCK>,
+				 <PINMUX_GPIO47__FUNC_I2S5_DO>,
+				 <PINMUX_GPIO13__FUNC_DBPI_D0>,
+				 <PINMUX_GPIO14__FUNC_DBPI_D1>,
+				 <PINMUX_GPIO15__FUNC_DBPI_D2>,
+				 <PINMUX_GPIO16__FUNC_DBPI_D3>,
+				 <PINMUX_GPIO17__FUNC_DBPI_D4>,
+				 <PINMUX_GPIO18__FUNC_DBPI_D5>,
+				 <PINMUX_GPIO19__FUNC_DBPI_D6>,
+				 <PINMUX_GPIO20__FUNC_DBPI_D7>,
+				 <PINMUX_GPIO21__FUNC_DBPI_D8>,
+				 <PINMUX_GPIO22__FUNC_DBPI_D9>,
+				 <PINMUX_GPIO23__FUNC_DBPI_D10>,
+				 <PINMUX_GPIO24__FUNC_DBPI_D11>,
+				 <PINMUX_GPIO25__FUNC_DBPI_HSYNC>,
+				 <PINMUX_GPIO26__FUNC_DBPI_VSYNC>,
+				 <PINMUX_GPIO27__FUNC_DBPI_DE>,
+				 <PINMUX_GPIO28__FUNC_DBPI_CK>;
+		};
+	};
+
+	dpi_idle_pins: dpi-idle-pins {
+		pins-idle {
+			pinmux = <PINMUX_GPIO12__FUNC_GPIO12>,
+				 <PINMUX_GPIO46__FUNC_GPIO46>,
+				 <PINMUX_GPIO47__FUNC_GPIO47>,
+				 <PINMUX_GPIO13__FUNC_GPIO13>,
+				 <PINMUX_GPIO14__FUNC_GPIO14>,
+				 <PINMUX_GPIO15__FUNC_GPIO15>,
+				 <PINMUX_GPIO16__FUNC_GPIO16>,
+				 <PINMUX_GPIO17__FUNC_GPIO17>,
+				 <PINMUX_GPIO18__FUNC_GPIO18>,
+				 <PINMUX_GPIO19__FUNC_GPIO19>,
+				 <PINMUX_GPIO20__FUNC_GPIO20>,
+				 <PINMUX_GPIO21__FUNC_GPIO21>,
+				 <PINMUX_GPIO22__FUNC_GPIO22>,
+				 <PINMUX_GPIO23__FUNC_GPIO23>,
+				 <PINMUX_GPIO24__FUNC_GPIO24>,
+				 <PINMUX_GPIO25__FUNC_GPIO25>,
+				 <PINMUX_GPIO26__FUNC_GPIO26>,
+				 <PINMUX_GPIO27__FUNC_GPIO27>,
+				 <PINMUX_GPIO28__FUNC_GPIO28>;
+		};
+	};
 };
 
 &mfg {
@@ -381,3 +489,16 @@ &scp {
 &dsi0 {
 	status = "disabled";
 };
+
+&dpi0 {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&dpi_func_pins>;
+	pinctrl-1 = <&dpi_idle_pins>;
+	status = "okay";
+
+	port {
+		dpi_out: endpoint {
+			remote-endpoint = <&it66121_in>;
+		};
+	};
+};
-- 
2.36.0