arm64: dts: freescale: imx8mp-verdin: add HDMI support

Enable HDMI output on Verdin iMX8MP on all the supported carrier boards
(dev, dahlia, mallow and yavia).

HDMI DDC I2C is used in regular I2C mode, see link on the related
dt-bindings patch.

Fix CEC and HPD pinctrl, having a pull-down on HPD and a pull-up on CEC.

Link: https://lore.kernel.org/all/20240515062753.111746-1-marex@denx.de/Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi

@@ -4,6 +4,18 @@
  */
 
 / {
+	native-hdmi-connector {
+		compatible = "hdmi-connector";
+		label = "X21";
+		type = "a";
+
+		port {
+			native_hdmi_connector_in: endpoint {
+				remote-endpoint = <&hdmi_tx_out>;
+			};
+		};
+	};
+
 	sound {
 		compatible = "simple-audio-card";
 		simple-audio-card,bitclock-master = <&codec_dai>;
@@ -94,6 +106,27 @@ &gpio4 {
 	pinctrl-0 = <&pinctrl_ctrl_sleep_moci>;
 };
 
+/* Verdin HDMI_1 */
+&hdmi_pvi {
+	status = "okay";
+};
+
+&hdmi_tx {
+	status = "okay";
+
+	ports {
+		port@1 {
+			hdmi_tx_out: endpoint {
+				remote-endpoint = <&native_hdmi_connector_in>;
+			};
+		};
+	};
+};
+
+&hdmi_tx_phy {
+	status = "okay";
+};
+
 /* Current measurement into module VCC */
 &hwmon {
 	status = "okay";
@@ -139,6 +172,10 @@ &i2c5 {
 	status = "okay";
 };
 
+&lcdif3 {
+	status = "okay";
+};
+
 /* Verdin PCIE_1 */
 &pcie {
 	vpcie-supply = <&reg_pcie>;

arch/arm64/boot/dts/freescale/imx8mp-verdin-dev.dtsi

@@ -4,6 +4,18 @@
  */
 
 / {
+	native-hdmi-connector {
+		compatible = "hdmi-connector";
+		label = "X37";
+		type = "a";
+
+		port {
+			native_hdmi_connector_in: endpoint {
+				remote-endpoint = <&hdmi_tx_out>;
+			};
+		};
+	};
+
 	reg_eth2phy: regulator-eth2phy {
 		compatible = "regulator-fixed";
 		enable-active-high;
@@ -103,6 +115,27 @@ &gpio_expander_21 {
 	vcc-supply = <&reg_1p8v>;
 };
 
+/* Verdin HDMI_1 */
+&hdmi_pvi {
+	status = "okay";
+};
+
+&hdmi_tx {
+	status = "okay";
+
+	ports {
+		port@1 {
+			hdmi_tx_out: endpoint {
+				remote-endpoint = <&native_hdmi_connector_in>;
+			};
+		};
+	};
+};
+
+&hdmi_tx_phy {
+	status = "okay";
+};
+
 /* Current measurement into module VCC */
 &hwmon {
 	status = "okay";
@@ -141,6 +174,10 @@ &i2c5 {
 	status = "okay";
 };
 
+&lcdif3 {
+	status = "okay";
+};
+
 /* Verdin PCIE_1 */
 &pcie {
 	status = "okay";

arch/arm64/boot/dts/freescale/imx8mp-verdin-mallow.dtsi

@@ -11,6 +11,18 @@
 #include <dt-bindings/leds/common.h>
 
 / {
+	native-hdmi-connector {
+		compatible = "hdmi-connector";
+		label = "X14";
+		type = "a";
+
+		port {
+			native_hdmi_connector_in: endpoint {
+				remote-endpoint = <&hdmi_tx_out>;
+			};
+		};
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
@@ -91,6 +103,27 @@ &flexcan2 {
 	status = "okay";
 };
 
+/* Verdin HDMI_1 */
+&hdmi_pvi {
+	status = "okay";
+};
+
+&hdmi_tx {
+	status = "okay";
+
+	ports {
+		port@1 {
+			hdmi_tx_out: endpoint {
+				remote-endpoint = <&native_hdmi_connector_in>;
+			};
+		};
+	};
+};
+
+&hdmi_tx_phy {
+	status = "okay";
+};
+
 /* Temperature sensor on Mallow */
 &hwmon_temp {
 	compatible = "ti,tmp1075";
@@ -117,6 +150,10 @@ &i2c5 {
 	status = "okay";
 };
 
+&lcdif3 {
+	status = "okay";
+};
+
 /* Verdin PCIE_1 */
 &pcie {
 	status = "okay";

arch/arm64/boot/dts/freescale/imx8mp-verdin-nonwifi.dtsi

@@ -41,8 +41,7 @@ &iomuxc {
 	pinctrl-0 = <&pinctrl_gpio1>, <&pinctrl_gpio2>,
 		    <&pinctrl_gpio3>, <&pinctrl_gpio4>,
 		    <&pinctrl_gpio7>, <&pinctrl_gpio8>,
-		    <&pinctrl_gpio_hog1>, <&pinctrl_gpio_hog2>, <&pinctrl_gpio_hog3>,
-		    <&pinctrl_hdmi_hog>;
+		    <&pinctrl_gpio_hog1>, <&pinctrl_gpio_hog2>, <&pinctrl_gpio_hog3>;
 };
 
 /*

arch/arm64/boot/dts/freescale/imx8mp-verdin-wifi.dtsi

@@ -55,8 +55,7 @@ &iomuxc {
 	pinctrl-0 = <&pinctrl_gpio1>, <&pinctrl_gpio2>,
 		    <&pinctrl_gpio3>, <&pinctrl_gpio4>,
 		    <&pinctrl_gpio7>, <&pinctrl_gpio8>,
-		    <&pinctrl_gpio_hog2>, <&pinctrl_gpio_hog3>, <&pinctrl_gpio_hog4>,
-		    <&pinctrl_hdmi_hog>;
+		    <&pinctrl_gpio_hog2>, <&pinctrl_gpio_hog3>, <&pinctrl_gpio_hog4>;
 };
 
 /* On-module Bluetooth */

arch/arm64/boot/dts/freescale/imx8mp-verdin-yavia.dtsi

@@ -6,6 +6,18 @@
 #include <dt-bindings/leds/common.h>
 
 / {
+	native-hdmi-connector {
+		compatible = "hdmi-connector";
+		label = "J15";
+		type = "a";
+
+		port {
+			native_hdmi_connector_in: endpoint {
+				remote-endpoint = <&hdmi_tx_out>;
+			};
+		};
+	};
+
 	/* Carrier Board Supply +V1.8 */
 	reg_1p8v: regulator-1p8v {
 		compatible = "regulator-fixed";
@@ -105,6 +117,27 @@ &gpio4 {
 	pinctrl-0 = <&pinctrl_ctrl_sleep_moci>;
 };
 
+/* Verdin HDMI_1 */
+&hdmi_pvi {
+	status = "okay";
+};
+
+&hdmi_tx {
+	status = "okay";
+
+	ports {
+		port@1 {
+			hdmi_tx_out: endpoint {
+				remote-endpoint = <&native_hdmi_connector_in>;
+			};
+		};
+	};
+};
+
+&hdmi_tx_phy {
+	status = "okay";
+};
+
 &hwmon_temp {
 	status = "okay";
 };
@@ -127,6 +160,10 @@ &i2c5 {
 	status = "okay";
 };
 
+&lcdif3 {
+	status = "okay";
+};
+
 /* Verdin PCIE_1 */
 &pcie {
 	status = "okay";

arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi

@@ -457,6 +457,13 @@ &gpio4 {
 			  "SODIMM_44";
 };
 
+/* Verdin HDMI_1 */
+&hdmi_tx {
+	ddc-i2c-bus = <&i2c5>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hdmi>;
+};
+
 /* On-module I2C */
 &i2c1 {
 	clock-frequency = <400000>;
@@ -1116,10 +1123,10 @@ pinctrl_gpio_keys: gpiokeysgrp {
 			<MX8MP_IOMUXC_SAI1_RXFS__GPIO4_IO00		0x1c4>;	/* SODIMM 252 */
 	};
 
-	pinctrl_hdmi_hog: hdmihoggrp {
+	pinctrl_hdmi: hdmigrp {
 		fsl,pins =
-			<MX8MP_IOMUXC_HDMI_CEC__HDMIMIX_HDMI_CEC	0x40000019>,	/* SODIMM 63 */
-			<MX8MP_IOMUXC_HDMI_HPD__HDMIMIX_HDMI_HPD	0x40000019>;	/* SODIMM 61 */
+			<MX8MP_IOMUXC_HDMI_CEC__HDMIMIX_HDMI_CEC	0x140>,	/* SODIMM 63 */
+			<MX8MP_IOMUXC_HDMI_HPD__HDMIMIX_HDMI_HPD	0x180>;	/* SODIMM 61 */
 	};
 
 	/* On-module I2C */