[PATCH V3 0/3] arm64: dts: imx8mn/imx8mm-beacon: Add HDMI

[PATCH V3 0/3] 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.


V3:  Alphabetize regulator names.
     Add register names for EDID and Packet
     Add I2C address change for the camera since it
     conflicted with the I2C address of the HDMI bridge.

V2:  Make 'compatible' the first thing in the new nodes.

Adam Ford (3):
  arm64: dts: imx8mn-beacon: Add HDMI video with sound
  arm64: dts: imx8mm-beacon: Change camera I2C address
  arm64: dts: imx8mm-beacon: Add HDMI video with sound

 .../freescale/imx8mm-beacon-baseboard.dtsi    |   4 +-
 .../boot/dts/freescale/imx8mm-beacon-kit.dts  | 131 +++++++++++++++++
 .../boot/dts/freescale/imx8mn-beacon-kit.dts  | 133 ++++++++++++++++++
 3 files changed, 266 insertions(+), 2 deletions(-)

-- 
2.39.2

[PATCH V3 0/3] 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.


V3:  Alphabetize regulator names.
     Add register names for EDID and Packet
     Add I2C address change for the camera since it
     conflicted with the I2C address of the HDMI bridge.

V2:  Make 'compatible' the first thing in the new nodes.

Adam Ford (3):
  arm64: dts: imx8mn-beacon: Add HDMI video with sound
  arm64: dts: imx8mm-beacon: Change camera I2C address
  arm64: dts: imx8mm-beacon: Add HDMI video with sound

 .../freescale/imx8mm-beacon-baseboard.dtsi    |   4 +-
 .../boot/dts/freescale/imx8mm-beacon-kit.dts  | 131 +++++++++++++++++
 .../boot/dts/freescale/imx8mn-beacon-kit.dts  | 133 ++++++++++++++++++
 3 files changed, 266 insertions(+), 2 deletions(-)

-- 
2.39.2

[PATCH 1/3] 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-plug detection.

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..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

[PATCH 2/3] arm64: dts: imx8mm-beacon: Change camera I2C address

[Adam Ford]

The DSI to HDMI bridge uses the address currently assigned to
the camera, so change the camera address to the alternative
address of 0x10 in preparation to enable the bridge.

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

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi
index bc531175ff76..d5c6fc68d656 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi
@@ -141,11 +141,11 @@ &i2c2 {
 	pinctrl-0 = <&pinctrl_i2c2>;
 	status = "okay";
 
-	camera@3c {
+	camera@10 {
 		compatible = "ovti,ov5640";
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_ov5640>;
-		reg = <0x3c>;
+		reg = <0x10>;
 		clocks = <&clk IMX8MM_CLK_CLKO1>;
 		clock-names = "xclk";
 		assigned-clocks = <&clk IMX8MM_CLK_CLKO1>;
-- 
2.39.2

[PATCH 3/3] 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..66d68ce98ca4 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-kit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-kit.dts
@@ -16,4 +16,135 @@ / {
 	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 {
+	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 V3 0/3] arm64: dts: imx8mn/imx8mm-beacon: Add HDMI

[Adam Ford]

On Thu, Jun 15, 2023 at 4:53 PM Adam Ford <aford173@gmail.com> wrote:
>
> 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.
>
>

Shawn,

Is it too late to get this series into the 6.5 merge window?

adam

> V3:  Alphabetize regulator names.
>      Add register names for EDID and Packet
>      Add I2C address change for the camera since it
>      conflicted with the I2C address of the HDMI bridge.
>
> V2:  Make 'compatible' the first thing in the new nodes.
>
> Adam Ford (3):
>   arm64: dts: imx8mn-beacon: Add HDMI video with sound
>   arm64: dts: imx8mm-beacon: Change camera I2C address
>   arm64: dts: imx8mm-beacon: Add HDMI video with sound
>
>  .../freescale/imx8mm-beacon-baseboard.dtsi    |   4 +-
>  .../boot/dts/freescale/imx8mm-beacon-kit.dts  | 131 +++++++++++++++++
>  .../boot/dts/freescale/imx8mn-beacon-kit.dts  | 133 ++++++++++++++++++
>  3 files changed, 266 insertions(+), 2 deletions(-)
>
> --
> 2.39.2
>

Re: [PATCH V3 0/3] arm64: dts: imx8mn/imx8mm-beacon: Add HDMI

[Shawn Guo]

On Thu, Jun 15, 2023 at 04:53:10PM -0500, Adam Ford wrote:
> 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.
> 
> 
> V3:  Alphabetize regulator names.
>      Add register names for EDID and Packet
>      Add I2C address change for the camera since it
>      conflicted with the I2C address of the HDMI bridge.
> 
> V2:  Make 'compatible' the first thing in the new nodes.
> 
> Adam Ford (3):
>   arm64: dts: imx8mn-beacon: Add HDMI video with sound
>   arm64: dts: imx8mm-beacon: Change camera I2C address
>   arm64: dts: imx8mm-beacon: Add HDMI video with sound

Applied all, thanks!