Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:1 as permitted sender) client-ip=2620:137:e000::3:1;
From:   Adam Ford <aford173@gmail.com>
To:     linux-arm-kernel@lists.infradead.org
Cc:     aford@beaconembedded.com, Adam Ford <aford173@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] arm64: dts: imx8mp-beacon-kit: Enable DSI to HDMI Bridge
Date:   Thu, 12 Oct 2023 20:41:17 -0500
Message-Id: <20231013014117.124202-1-aford173@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

The baseboard of the Beacon i.MX8M Plus development kit has
an ADV7535 DSI to HDMI bridge capable of stereo sound.

Signed-off-by: Adam Ford <aford173@gmail.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts b/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
index 0bea0798d2db..feae77e03835 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
@@ -94,6 +94,17 @@ button-3 {
 		};
 	};
 
+	bridge-connector {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_con: endpoint {
+				remote-endpoint = <&adv7535_out>;
+			};
+		};
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
@@ -153,6 +164,21 @@ reg_usb1_host_vbus: regulator-usb1-vbus {
 		enable-active-high;
 	};
 
+	sound-adv7535 {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "sound-adv7535";
+		simple-audio-card,format = "i2s";
+
+		simple-audio-card,cpu {
+			sound-dai = <&sai5>;
+			system-clock-direction-out;
+		};
+
+		simple-audio-card,codec {
+			sound-dai = <&adv_bridge>;
+		};
+	};
+
 	sound-dmic {
 		compatible = "simple-audio-card";
 		simple-audio-card,name = "sound-pdm";
@@ -274,6 +300,35 @@ pca6416_3: gpio@20 {
 		#interrupt-cells = <2>;
 	};
 
+	adv_bridge: hdmi@3d {
+		compatible = "adi,adv7535";
+		reg = <0x3d>, <0x3c>, <0x3e>, <0x3f>;
+		reg-names = "main", "cec", "edid", "packet";
+		adi,dsi-lanes = <4>;
+		#sound-dai-cells = <0>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				adv7535_in: endpoint {
+					remote-endpoint = <&dsi_out>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				adv7535_out: endpoint {
+					remote-endpoint = <&hdmi_con>;
+				};
+			};
+		};
+	};
+
 	pcieclk: clock-generator@68 {
 		compatible = "renesas,9fgv0241";
 		reg = <0x68>;
@@ -398,6 +453,10 @@ hd3ss3220_out_ep: endpoint {
 	};
 };
 
+&lcdif1 {
+	status = "okay";
+};
+
 &micfil {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_pdm>;
@@ -407,6 +466,21 @@ &micfil {
 	status = "okay";
 };
 
+&mipi_dsi {
+	samsung,esc-clock-frequency = <10000000>;
+	status = "okay";
+
+	ports {
+		port@1 {
+			reg = <1>;
+
+			dsi_out: endpoint {
+				remote-endpoint = <&adv7535_in>;
+			};
+		};
+	};
+};
+
 &pcie {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_pcie>;
@@ -433,6 +507,16 @@ &sai3 {
 	status = "okay";
 };
 
+&sai5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sai5>;
+	assigned-clocks = <&clk IMX8MP_CLK_SAI5>;
+	assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>;
+	assigned-clock-rates = <12288000>;
+	fsl,sai-mclk-direction-output;
+	status = "okay";
+};
+
 &snvs_pwrkey {
 	status = "okay";
 };
@@ -612,6 +696,14 @@ MX8MP_IOMUXC_SAI3_MCLK__AUDIOMIX_SAI3_MCLK	0xd6
 		>;
 	};
 
+	pinctrl_sai5: sai5grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SAI5_RXD3__AUDIOMIX_SAI5_TX_DATA00	0xd6
+			MX8MP_IOMUXC_SAI5_RXD2__AUDIOMIX_SAI5_TX_BCLK	0xd6
+			MX8MP_IOMUXC_SAI5_RXD1__AUDIOMIX_SAI5_TX_SYNC	0xd6
+		>;
+	};
+
 	pinctrl_tpm: tpmgrp {
 		fsl,pins = <
 			MX8MP_IOMUXC_SAI1_RXFS__GPIO4_IO00	0x19 /* Reset */
-- 
2.40.1