2023-06-10 19:31:08

by Adam Ford

Subject: [PATCH V3 1/3] arm64: dts: imx8mn-beacon: Add HDMI video with sound

The Beacon Embedded imx8mn development kit has a DSI
to HDMI bridge chip. The bridge supports stereo audio
and hot-plug detection.

Signed-off-by: Adam Ford <[email protected]>

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts b/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts
index 1392ce02587b..442ff2960677 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts
@@ -16,4 +16,137 @@ / {
chosen {
stdout-path = &uart2;
};
+
+ connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_connector_in: endpoint {
+ remote-endpoint = <&adv7535_out>;
+ };
+ };
+ };
+
+ reg_hdmi: regulator-hdmi-dvdd {
+ compatible = "regulator-fixed";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_reg_hdmi>;
+ regulator-name = "hdmi_pwr_en";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio2 11 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ startup-delay-us = <70000>;
+ regulator-always-on;
+ };
+
+ sound-hdmi {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "sound-hdmi";
+ simple-audio-card,format = "i2s";
+
+ simple-audio-card,cpu {
+ sound-dai = <&sai5 0>;
+ system-clock-direction-out;
+ };
+
+ simple-audio-card,codec {
+ sound-dai = <&adv_bridge>;
+ };
+ };
+};
+
+&i2c2 {
+ adv_bridge: hdmi@3d {
+ compatible = "adi,adv7535";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_hdmi_bridge>;
+ reg = <0x3d>, <0x3c>, <0x3e>, <0x3f>;
+ reg-names = "main", "cec", "edid", "packet";
+ adi,dsi-lanes = <4>;
+ avdd-supply = <&reg_hdmi>;
+ a2vdd-supply = <&reg_hdmi>;
+ dvdd-supply = <&reg_hdmi>;
+ pvdd-supply = <&reg_hdmi>;
+ v1p2-supply = <&reg_hdmi>;
+ v3p3-supply = <&reg_hdmi>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
+ #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_connector_in>;
+ };
+ };
+ };
+ };
+};
+
+&lcdif {
+ assigned-clocks = <&clk IMX8MN_VIDEO_PLL1>;
+ assigned-clock-rates = <594000000>;
+ status = "okay";
+};
+
+&mipi_dsi {
+ samsung,esc-clock-frequency = <20000000>;
+ status = "okay";
+
+ ports {
+ port@1 {
+ reg = <1>;
+
+ dsi_out: endpoint {
+ remote-endpoint = <&adv7535_in>;
+ };
+ };
+ };
+};
+
+&sai5 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sai5>;
+ assigned-clocks = <&clk IMX8MN_CLK_SAI5>;
+ assigned-clock-parents = <&clk IMX8MN_AUDIO_PLL1_OUT>;
+ assigned-clock-rates = <24576000>;
+ #sound-dai-cells = <0>;
+ status = "okay";
+};
+
+&iomuxc {
+ pinctrl_hdmi_bridge: hdmibridgegrp {
+ fsl,pins = <
+ MX8MN_IOMUXC_GPIO1_IO09_GPIO1_IO9 0x19
+ >;
+ };
+
+ pinctrl_reg_hdmi: reghdmigrp {
+ fsl,pins = <
+ MX8MN_IOMUXC_SD1_STROBE_GPIO2_IO11 0x16
+ >;
+ };
+
+ pinctrl_sai5: sai5grp {
+ fsl,pins = <
+ MX8MN_IOMUXC_SAI5_RXD3_SAI5_TX_DATA0 0xd6
+ MX8MN_IOMUXC_SAI5_RXD2_SAI5_TX_BCLK 0xd6
+ MX8MN_IOMUXC_SAI5_RXD1_SAI5_TX_SYNC 0xd6
+ >;
+ };
};
--
2.39.2