In cherry projects, we use edptx as the internal display interface and use dptx as the external display interface. To support this, we need to add more properties. - Add pinctrls for edptx and dptx. - Add ports for edptx and dptx. The port connections for the internal and external display: dp-intf0 -> edptx -> panel dp-intf1 -> dptx Because it lacks port of panel, so we keep empty remote-endpoint for port1@edptx. Signed-off-by: Bo-Chen Chen <rex-bc.chen@xxxxxxxxxxxx> --- .../boot/dts/mediatek/mt8195-cherry.dtsi | 68 +++++++++++++++++++ 1 file changed, 68 insertions(+) diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi index 303dc32c64dc..560103e29017 100644 --- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi @@ -125,6 +125,7 @@ port { dp_intf0_out: endpoint { + remote-endpoint = <&edp_in>; }; }; }; @@ -134,6 +135,59 @@ port { dp_intf1_out: endpoint { + remote-endpoint = <&dptx_in>; + }; + }; +}; + +&edp_tx { + status = "okay"; + + pinctrl-names = "default"; + pinctrl-0 = <&edptx_pins_default>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + edp_in: endpoint { + remote-endpoint = <&dp_intf0_out>; + }; + }; + + port@1 { + reg = <1>; + edp_out: endpoint { + data-lanes = <0 1 2 3>; + }; + }; + }; +}; + +&dp_tx { + status = "okay"; + + pinctrl-names = "default"; + pinctrl-0 = <&dptx_pin>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dptx_in: endpoint { + remote-endpoint = <&dp_intf1_out>; + }; + }; + + port@1 { + reg = <1>; + dptx_out: endpoint { + data-lanes = <0 1 2 3>; + }; }; }; }; @@ -497,6 +551,20 @@ }; }; + edptx_pins_default: edptx-default-pins { + pins-cmd-dat { + pinmux = <PINMUX_GPIO7__FUNC_EDP_TX_HPD>; + bias-pull-up; + }; + }; + + dptx_pin: dptx-default-pins { + pins-cmd-dat { + pinmux = <PINMUX_GPIO18__FUNC_DP_TX_HPD>; + bias-pull-up; + }; + }; + i2c0_pins: i2c0-default-pins { pins-bus { pinmux = <PINMUX_GPIO8__FUNC_SDA0>, -- 2.18.0