From: Konrad Dybcio <konrad.dybcio@linaro.org>
Subject: arm64: dts: qcom: qrb2210-rb1: Set up HDMI
Date: Wed, 29 Nov 2023 15:44:07 +0100

Add the required nodes to support display output via the HDMI port.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Upstream-Status: Backport [https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 616eda24edd48b8b56516886c51d211fbfd2679b]
---
 arch/arm64/boot/dts/qcom/qrb2210-rb1.dts | 86 ++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
index 94885b9c21c8..ac6584164058 100644
--- a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
+++ b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
@@ -40,6 +40,17 @@ key-volume-up {
 		};
 	};
 
+	hdmi-connector {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_con: endpoint {
+				remote-endpoint = <&lt9611_out>;
+			};
+		};
+	};
+
 	leds {
 		compatible = "gpio-leds";
 
@@ -158,6 +169,68 @@ vph_pwr: regulator-vph-pwr {
 	};
 };
 
+&gpi_dma0 {
+	status = "okay";
+};
+
+&i2c2 {
+	clock-frequency = <400000>;
+	status = "okay";
+
+	lt9611_codec: hdmi-bridge@2b {
+		compatible = "lontium,lt9611uxc";
+		reg = <0x2b>;
+		interrupts-extended = <&tlmm 46 IRQ_TYPE_EDGE_FALLING>;
+		reset-gpios = <&tlmm 41 GPIO_ACTIVE_HIGH>;
+
+		vdd-supply = <&vreg_hdmi_out_1p2>;
+		vcc-supply = <&lt9611_3v3>;
+
+		pinctrl-0 = <&lt9611_irq_pin &lt9611_rst_pin>;
+		pinctrl-names = "default";
+		#sound-dai-cells = <1>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				lt9611_a: endpoint {
+					remote-endpoint = <&mdss_dsi0_out>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+
+				lt9611_out: endpoint {
+					remote-endpoint = <&hdmi_con>;
+				};
+			};
+		};
+	};
+};
+
+&mdss {
+	status = "okay";
+};
+
+&mdss_dsi0 {
+	vdda-supply = <&pm2250_l5>;
+	status = "okay";
+};
+
+&mdss_dsi0_out {
+	remote-endpoint = <&lt9611_a>;
+	data-lanes = <0 1 2 3>;
+};
+
+&mdss_dsi0_phy {
+	status = "okay";
+};
+
 &pm2250_resin {
 	linux,code = <KEY_VOLUMEDOWN>;
 	status = "okay";
@@ -377,6 +450,19 @@ &sdhc_2 {
 };
 
 &tlmm {
+	lt9611_rst_pin: lt9611-rst-state {
+		pins = "gpio41";
+		function = "gpio";
+		input-disable;
+		output-high;
+	};
+
+	lt9611_irq_pin: lt9611-irq-state {
+		pins = "gpio46";
+		function = "gpio";
+		bias-disable;
+	};
+
 	sd_det_in_on: sd-det-in-on-state {
 		pins = "gpio88";
 		function = "gpio";
-- 
2.43.0