Add support of the lt8912b in the DTB. This adds the support of the DB_DSIHD daugther board from Boundary Devices. Signed-off-by: Adrien Grassein <adrien.grassein@xxxxxxxxx> --- .../boot/dts/freescale/imx8mq-nitrogen.dts | 121 ++++++++++++++++++ 1 file changed, 121 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mq-nitrogen.dts b/arch/arm64/boot/dts/freescale/imx8mq-nitrogen.dts index 5553f3c84dbc..f70fb32b96b0 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-nitrogen.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-nitrogen.dts @@ -34,6 +34,19 @@ power { }; }; + hdmi-connector { + compatible = "hdmi-connector"; + ddc-i2c-bus = <&ddc_i2c_bus>; + label = "hdmi"; + type = "a"; + + port { + hdmi_connector_in: endpoint { + remote-endpoint = <<8912_out>; + }; + }; + }; + reg_usb_otg_vbus: regulator-usb-otg-vbus { compatible = "regulator-fixed"; pinctrl-names = "default"; @@ -81,6 +94,9 @@ reg_vref_5v: regulator-vref-5v { }; }; +&dphy { + status = "okay"; +}; &fec1 { pinctrl-names = "default"; @@ -194,6 +210,98 @@ rtc@68 { }; }; +&i2c4 { + clock-frequency = <100000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c4>; + status = "okay"; + + pca9546: i2cmux@70 { + compatible = "nxp,pca9546"; + reg = <0x70>; + #address-cells = <1>; + #size-cells = <0>; + + i2c4@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + clock-frequency = <100000>; + + hdmi-bridge@48 { + compatible = "lontium,lt8912b"; + reg = <0x48> ; + reset-gpios = <&max7323 0 GPIO_ACTIVE_LOW>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + hdmi_out_in: endpoint { + data-lanes = <1 2 3 4>; + remote-endpoint = <&mipi_dsi_out>; + }; + }; + + port@1 { + reg = <1>; + + lt8912_out: endpoint { + remote-endpoint = <&hdmi_connector_in>; + }; + }; + }; + }; + }; + + ddc_i2c_bus: i2c4@1 { + reg = <1>; + #address-cells = <1>; + #size-cells = <0>; + clock-frequency = <100000>; + }; + + i2c4@3 { + reg = <3>; + #address-cells = <1>; + #size-cells = <0>; + clock-frequency = <100000>; + + max7323: gpio-expander@68 { + compatible = "maxim,max7323"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_max7323>; + gpio-controller; + reg = <0x68>; + #gpio-cells = <2>; + }; + }; + }; +}; + +&lcdif { + status = "okay"; +}; + +&mipi_dsi { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + ports { + port@1 { + reg = <1>; + + mipi_dsi_out: endpoint { + remote-endpoint = <&hdmi_out_in>; + }; + }; + }; +}; + &uart1 { /* console */ pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart1>; @@ -364,6 +472,19 @@ MX8MQ_IOMUXC_GPIO1_IO06_GPIO1_IO6 0x49 >; }; + pinctrl_i2c4: i2c4grp { + fsl,pins = < + MX8MQ_IOMUXC_I2C4_SCL_I2C4_SCL 0x4000007f + MX8MQ_IOMUXC_I2C4_SDA_I2C4_SDA 0x4000007f + >; + }; + + pinctrl_max7323: max7323grp { + fsl,pins = < + MX8MQ_IOMUXC_NAND_RE_B_GPIO3_IO15 0x19 + >; + }; + pinctrl_reg_arm_dram: reg-arm-dramgrp { fsl,pins = < MX8MQ_IOMUXC_SAI5_RXD3_GPIO3_IO24 0x16 -- 2.25.1