arm64: dts: mediatek: mt8390-genio-common: Enable HDMI output

Add a node for the HDMI-A connector found on this board, then
configure the display pipeline and enable the required DPI1
interface, HDMI controller, its integrated DDC and the HDMI
PHY to enable support for the HDMI output provided by these EVKs.

Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

1 files changed, 141 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/mediatek/mt8390-genio-common.dtsi b/arch/arm64/boot/dts/mediatek/mt8390-genio-common.dtsi
index a2cdecd2b903..5fa1f5fbad18 100644
--- a/arch/arm64/boot/dts/mediatek/mt8390-genio-common.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8390-genio-common.dtsi
@@ -55,6 +55,20 @@
 		wakeup-delay-ms = <30>;
 	};
 
+	connector {
+		compatible = "hdmi-connector";
+		label = "hdmi";
+		type = "a";
+		ddc-i2c-bus = <&hdmi_ddc>;
+		hdmi-pwr-supply = <&hdmi_phy>;
+
+		port {
+			hdmi_connector_in: endpoint {
+				remote-endpoint = <&hdmi0_out>;
+			};
+		};
+	};
+
 	firmware {
 		optee {
 			compatible = "linaro,optee-tz";
@@ -328,6 +342,18 @@
 	remote-endpoint = <&dsi0_in>;
 };
 
+&dpi1 {
+	status = "okay";
+};
+
+&dpi1_in {
+	remote-endpoint = <&merge5_out>;
+};
+
+&dpi1_out {
+	remote-endpoint = <&hdmi0_in>;
+};
+
 &gamma0_out {
 	remote-endpoint = <&postmask0_in>;
 };
@@ -337,6 +363,55 @@
 	status = "okay";
 };
 
+&ethdr0 {
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+
+			ethdr0_in: endpoint@1 {
+				reg = <1>;
+				remote-endpoint = <&vdosys1_ep_ext>;
+			};
+		};
+
+		port@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+
+			ethdr0_out: endpoint@1 {
+				reg = <1>;
+				remote-endpoint = <&merge5_in>;
+			};
+		};
+	};
+};
+
+&hdmi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&hdmi_pins>;
+	status = "okay";
+};
+
+&hdmi0_in {
+	remote-endpoint = <&dpi1_out>;
+};
+
+&hdmi0_out {
+	remote-endpoint = <&hdmi_connector_in>;
+};
+
+&hdmi_phy {
+	pinctrl-names = "default";
+	pinctrl-0 = <&hdmi_vreg_pins>;
+	status = "okay";
+};
+
 &i2c0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c0_pins>;
@@ -475,6 +550,35 @@
 	status = "okay";
 };
 
+&merge5 {
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+
+			merge5_in: endpoint@1 {
+				reg = <1>;
+				remote-endpoint = <&ethdr0_out>;
+			};
+		};
+
+		port@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+
+			merge5_out: endpoint@1 {
+				reg = <1>;
+				remote-endpoint = <&dpi1_in>;
+			};
+		};
+	};
+};
+
 &mfg0 {
 	domain-supply = <&mt6359_vproc2_buck_reg>;
 };
@@ -727,6 +831,31 @@
 		};
 	};
 
+	hdmi_vreg_pins: hdmi-vreg-pins {
+		pins-pwr {
+			pinmux = <PINMUX_GPIO50__FUNC_O_HDMITX20_PWR5V>;
+			bias-disable;
+		};
+	};
+
+	hdmi_pins: hdmi-pins {
+		pins-hotplug {
+			pinmux = <PINMUX_GPIO51__FUNC_I0_HDMITX20_HTPLG>;
+			bias-pull-down;
+		};
+
+		pins-cec {
+			pinmux = <PINMUX_GPIO52__FUNC_B1_HDMITX20_CEC>;
+			bias-disable;
+		};
+
+		pins-ddc {
+			pinmux = <PINMUX_GPIO53__FUNC_B1_HDMITX20_SCL>,
+				 <PINMUX_GPIO54__FUNC_B1_HDMITX20_SDA>;
+			drive-strength = <10>;
+		};
+	};
+
 	i2c0_pins: i2c0-pins {
 		pins {
 			pinmux = <PINMUX_GPIO56__FUNC_B1_SDA0>,
@@ -1286,6 +1415,18 @@
 	};
 };
 
+&vdosys1 {
+	port {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		vdosys1_ep_ext: endpoint@1 {
+			reg = <1>;
+			remote-endpoint = <&ethdr0_in>;
+		};
+	};
+};
+
 &xhci0 {
 	status = "okay";
 };