From a101ba8587fae1dfd7b1bfb13397000a381b0774 Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Wed, 17 May 2023 12:11:07 +0200 Subject: [PATCH] ARM: dts: imx6qdl: Add HDMI to TQMa6x/MBa6 This adds support for a COTS monitor connected to X17. 4k monitors can be used, but are limited to 1080p. Signed-off-by: Alexander Stein Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx6qdl-mba6.dtsi | 41 +++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/arch/arm/boot/dts/imx6qdl-mba6.dtsi b/arch/arm/boot/dts/imx6qdl-mba6.dtsi index c911688e9832b..34d5cf7cee0b1 100644 --- a/arch/arm/boot/dts/imx6qdl-mba6.dtsi +++ b/arch/arm/boot/dts/imx6qdl-mba6.dtsi @@ -192,6 +192,13 @@ }; }; +&hdmi { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_hdmi>; + ddc-i2c-bus = <&i2c2>; + status = "okay"; +}; + &i2c1 { tlv320aic32x4: audio-codec@18 { compatible = "ti,tlv320aic32x4"; @@ -205,6 +212,17 @@ }; }; +/* DDC */ +&i2c2 { + clock-frequency = <100000>; + pinctrl-names = "default", "gpio"; + pinctrl-0 = <&pinctrl_i2c2>; + pinctrl-1 = <&pinctrl_i2c2_recovery>; + scl-gpios = <&gpio4 12 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + sda-gpios = <&gpio4 13 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + status = "okay"; +}; + &pcie { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_pcie>; @@ -411,6 +429,15 @@ >; }; + pinctrl_hdmi: hdmigrp { + /* NOTE: DDC is done via I2C2, so DON'T + * configure DDC pins for HDMI! + */ + fsl,pins = < + MX6QDL_PAD_EIM_A25__HDMI_TX_CEC_LINE 0x1f8b0 + >; + }; + pinctrl_hog: hoggrp { fsl,pins = < MX6QDL_PAD_DI0_PIN4__GPIO4_IO20 0x0001b099 @@ -447,6 +474,20 @@ >; }; + pinctrl_i2c2: i2c2grp { + fsl,pins = < + MX6QDL_PAD_KEY_COL3__I2C2_SCL 0x4001b899 + MX6QDL_PAD_KEY_ROW3__I2C2_SDA 0x4001b899 + >; + }; + + pinctrl_i2c2_recovery: i2c2recoverygrp { + fsl,pins = < + MX6QDL_PAD_KEY_COL3__GPIO4_IO12 0x4001b899 + MX6QDL_PAD_KEY_ROW3__GPIO4_IO13 0x4001b899 + >; + }; + pinctrl_pcie: pciegrp { fsl,pins = < /* HYS = 1, DSE = 110, 100k up, SPEED = HIGH (11)*/ -- 2.30.2