Add support according the SMARC Spec 1.1 [1] and provided schematics. Due to the lack of hardware the interface can't be tested right now. Since the imx6 HDMI signals are not muxable we only have to add the dedicated i2c-hdmi signals. [1] https://sget.org/standards/smarc Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx> --- arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi b/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi index 9b8a1d99d967..e0372687d8f4 100644 --- a/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi +++ b/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi @@ -313,6 +313,13 @@ }; }; +/* HDMI_CTRL */ +&i2c2 { + clock-frequency = <100000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c2>; +}; + /* I2C_PM */ &i2c3 { clock-frequency = <100000>; @@ -404,6 +411,13 @@ >; }; + pinctrl_i2c2: i2c2grp { + fsl,pins = < + MX6QDL_PAD_KEY_COL3__I2C2_SCL 0x4001b8b1 + MX6QDL_PAD_KEY_ROW3__I2C2_SDA 0x4001b8b1 + >; + }; + pinctrl_i2c3: i2c3grp { fsl,pins = < MX6QDL_PAD_GPIO_3__I2C3_SCL 0x4001b8b1 -- 2.20.1
