[PATCH v2 1/1] arm64: dts: imx8mp-debix-model-a: Enable HDMI output

From: Christopher Obbard
Date: Mon Jun 10 2024 - 19:43:31 EST


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

This has been tested with a generic 1080p HDMI display, along with a
smaller 1280x800 HDMI display.

Signed-off-by: Christopher Obbard <chris.obbard@xxxxxxxxxxxxx>
---

Changes in v2:
- Do not set SION (Software Input ON) bit in pinmux pin config register.
- Small changes to commit log/cover letter.
- v1: https://lore.kernel.org/linux-arm-kernel/20240415114135.25473-1-chris.obbard@xxxxxxxxxxxxx/

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

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-debix-model-a.dts b/arch/arm64/boot/dts/freescale/imx8mp-debix-model-a.dts
index 9b8f97a84e61..af02af9e5334 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-debix-model-a.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-debix-model-a.dts
@@ -20,6 +20,18 @@ chosen {
stdout-path = &uart2;
};

+ hdmi-connector {
+ compatible = "hdmi-connector";
+ label = "hdmi";
+ type = "a";
+
+ port {
+ hdmi_connector_in: endpoint {
+ remote-endpoint = <&hdmi_tx_out>;
+ };
+ };
+ };
+
leds {
compatible = "gpio-leds";
pinctrl-names = "default";
@@ -94,6 +106,28 @@ ethphy0: ethernet-phy@0 { /* RTL8211E */
};
};

+&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";
+};
+
&i2c1 {
clock-frequency = <400000>;
pinctrl-names = "default";
@@ -239,6 +273,10 @@ &i2c6 {
status = "okay";
};

+&lcdif3 {
+ status = "okay";
+};
+
&snvs_pwrkey {
status = "okay";
};
@@ -356,6 +394,15 @@ MX8MP_IOMUXC_NAND_READY_B__GPIO3_IO16 0x19
>;
};

+ 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
--
2.45.1