linux-kernel - [PATCH] arm64: dts: freescale: debix-som-a-bmb-08: Enable HDMI output

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Message-ID: <20250916144710.1285650-1-kieran.bingham@ideasonboard.com>
Date: Tue, 16 Sep 2025 15:47:09 +0100
From: Kieran Bingham <kieran.bingham@...asonboard.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	imx@...ts.linux.dev (open list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE),
	linux-arm-kernel@...ts.infradead.org (moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE),
	linux-kernel@...r.kernel.org (open list)
Cc: Kieran Bingham <kieran.bingham@...asonboard.com>
Subject: [PATCH] arm64: dts: freescale: debix-som-a-bmb-08: Enable HDMI output

Enable the HDMI output on the Debix SOM A board, using the HDMI encoder
present in the i.MX8MP SoC.

Enable and configure all nodes required for the HDMI port usage.

Signed-off-by: Kieran Bingham <kieran.bingham@...asonboard.com>

---

This replicates 4880ee1c9046 ("arm64: dts: imx8mp-debix-model-a: Enable
HDMI output") to support the Debix SOM as well.


 .../freescale/imx8mp-debix-som-a-bmb-08.dts   | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a-bmb-08.dts b/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a-bmb-08.dts
index d241db3743a9..04619a722906 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a-bmb-08.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-debix-som-a-bmb-08.dts
@@ -22,6 +22,18 @@ chosen {
 		stdout-path = &uart2;
 	};
 
+	hdmi-connector {
+		compatible = "hdmi-connector";
+		label = "hdmi";
+		type = "a";
+
+		port {
+			hdmi_connector_in: endpoint {
+				remote-endpoint = <&hdmi_tx_out>;
+			};
+		};
+	};
+
 	reg_baseboard_vdd3v3: regulator-baseboard-vdd3v3 {
 		compatible = "regulator-fixed";
 		regulator-min-microvolt = <3300000>;
@@ -222,6 +234,28 @@ flash: flash@0 {
 	};
 };
 
+&hdmi_pvi {
+	status = "okay";
+};
+
+&hdmi_tx {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hdmi>;
+	status = "okay";
+
+	ports {
+		port@1 {
+			hdmi_tx_out: endpoint {
+				remote-endpoint = <&hdmi_connector_in>;
+			};
+		};
+	};
+};
+
+&hdmi_tx_phy {
+	status = "okay";
+};
+
 &i2c4 {
 	expander0: gpio@20 {
 		compatible = "nxp,pca9535";
@@ -276,6 +310,10 @@ ethmac2: mac-address@c {
 	};
 };
 
+&lcdif3 {
+	status = "okay";
+};
+
 &snvs_pwrkey {
 	status = "okay";
 };
@@ -430,6 +468,15 @@ MX8MP_IOMUXC_NAND_DATA03__FLEXSPI_A_DATA03      0x82
 		>;
 	};
 
+	pinctrl_hdmi: hdmigrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_HDMI_DDC_SCL__HDMIMIX_HDMI_SCL	0x1c3
+			MX8MP_IOMUXC_HDMI_DDC_SDA__HDMIMIX_HDMI_SDA	0x1c3
+			MX8MP_IOMUXC_HDMI_HPD__HDMIMIX_HDMI_HPD		0x19
+			MX8MP_IOMUXC_HDMI_CEC__HDMIMIX_HDMI_CEC		0x19
+		>;
+	};
+
 	pinctrl_i2c1: i2c1grp {
 		fsl,pins = <
 			MX8MP_IOMUXC_I2C1_SCL__I2C1_SCL			0x400001c2
-- 
2.50.1