[PATCH 0/2] arm64: dts: imx8mn/imx8mm-beacon: Add HDMI

[PATCH 0/2] arm64: dts: imx8mn/imx8mm-beacon: Add HDMI

[Adam Ford]

The DSI updates are in the DRM tree and Linux next with some updates
that now allow the DSI to connect to an HDMI bridge and successfully
sync displays at various resolutions and refresh rates.

Adam Ford (2):
  arm64: dts: imx8mn-beacon: Add HDMI video with sound
  arm64: dts: imx8mm-beacon: Add HDMI video with sound

 .../boot/dts/freescale/imx8mm-beacon-kit.dts  | 132 +++++++++++++++++
 .../boot/dts/freescale/imx8mn-beacon-kit.dts  | 134 ++++++++++++++++++
 2 files changed, 266 insertions(+)

-- 
2.39.2

[PATCH 1/2] arm64: dts: imx8mn-beacon: Add HDMI video with sound

[Adam Ford]

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

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

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts b/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts
index 1392ce02587b..3758c46c7162 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts
@@ -16,4 +16,138 @@ / {
 	chosen {
 		stdout-path = &uart2;
 	};
+
+	connector {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_connector_in: endpoint {
+				remote-endpoint = <&adv7535_out>;
+			};
+		};
+	};
+
+	reg_hdmi: regulator-hdmi-dvdd {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_hdmi>;
+		compatible = "regulator-fixed";
+		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 {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_hdmi_bridge>;
+		compatible = "adi,adv7535";
+		reg = <0x3d>, <0x3b>;
+		reg-names = "main", "cec";
+		adi,dsi-lanes = <4>;
+		adi,fixed-lanes;
+		dvdd-supply = <&reg_hdmi>;
+		v3p3-supply = <&reg_hdmi>;
+		v1p2-supply = <&reg_hdmi>;
+		a2vdd-supply = <&reg_hdmi>;
+		avdd-supply = <&reg_hdmi>;
+		pvdd-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

[PATCH 2/2] arm64: dts: imx8mm-beacon: Add HDMI video with sound

[Adam Ford]

The Beacon Embedded imx8mm development kit has a DSI
to HDMI bridge chip.  The bridge supports stereo audio
and hot-plugging.

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

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-kit.dts b/arch/arm64/boot/dts/freescale/imx8mm-beacon-kit.dts
index 74a7b0cc10c2..4454bc1b6b9a 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-kit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-kit.dts
@@ -16,4 +16,136 @@ / {
 	chosen {
 		stdout-path = &uart2;
 	};
+
+	connector {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_connector_in: endpoint {
+				remote-endpoint = <&adv7535_out>;
+			};
+		};
+	};
+
+	reg_hdmi: regulator-hdmi-dvdd {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_hdmi>;
+		compatible = "regulator-fixed";
+		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 {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_hdmi_bridge>;
+		compatible = "adi,adv7535";
+		reg = <0x3d>, <0x3b>;
+		reg-names = "main", "cec";
+		adi,dsi-lanes = <4>;
+		adi,fixed-lanes;
+		dvdd-supply = <&reg_hdmi>;
+		v3p3-supply = <&reg_hdmi>;
+		v1p2-supply = <&reg_hdmi>;
+		a2vdd-supply = <&reg_hdmi>;
+		avdd-supply = <&reg_hdmi>;
+		pvdd-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 {
+	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 IMX8MM_CLK_SAI5>;
+	assigned-clock-parents = <&clk IMX8MM_AUDIO_PLL1_OUT>;
+	assigned-clock-rates = <24576000>;
+	#sound-dai-cells = <0>;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_hdmi_bridge: hdmibridgegrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9		0x19
+		>;
+	};
+
+	pinctrl_reg_hdmi: reghdmigrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SD1_STROBE_GPIO2_IO11              0x16
+		>;
+	};
+
+	pinctrl_sai5: sai5grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SAI5_RXD3_SAI5_TX_DATA0	0xd6
+			MX8MM_IOMUXC_SAI5_RXD2_SAI5_TX_BCLK	0xd6
+			MX8MM_IOMUXC_SAI5_RXD1_SAI5_TX_SYNC	0xd6
+		>;
+	};
 };
-- 
2.39.2

Re: [PATCH 1/2] arm64: dts: imx8mn-beacon: Add HDMI video with sound

[Shawn Guo]

On Wed, May 31, 2023 at 10:15:25PM -0500, Adam Ford wrote:
> The Beacon Embedded imx8mn development kit has a DSI
> to HDMI bridge chip.  The bridge supports stereo audio
> and hot-plugging.
> 
> Signed-off-by: Adam Ford <aford173@gmail.com>
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts b/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts
> index 1392ce02587b..3758c46c7162 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mn-beacon-kit.dts
> @@ -16,4 +16,138 @@ / {
>  	chosen {
>  		stdout-path = &uart2;
>  	};
> +
> +	connector {
> +		compatible = "hdmi-connector";
> +		type = "a";
> +
> +		port {
> +			hdmi_connector_in: endpoint {
> +				remote-endpoint = <&adv7535_out>;
> +			};
> +		};
> +	};
> +
> +	reg_hdmi: regulator-hdmi-dvdd {
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_reg_hdmi>;
> +		compatible = "regulator-fixed";

Can we start properties from 'compatible'?

> +		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 {
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_hdmi_bridge>;
> +		compatible = "adi,adv7535";

Same here.

Shawn

> +		reg = <0x3d>, <0x3b>;
> +		reg-names = "main", "cec";
> +		adi,dsi-lanes = <4>;
> +		adi,fixed-lanes;
> +		dvdd-supply = <&reg_hdmi>;
> +		v3p3-supply = <&reg_hdmi>;
> +		v1p2-supply = <&reg_hdmi>;
> +		a2vdd-supply = <&reg_hdmi>;
> +		avdd-supply = <&reg_hdmi>;
> +		pvdd-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
>