Quoting Philip Chen (2021-09-27 18:49:40)
> diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-parade-ps8640.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-parade-ps8640.dtsi
> new file mode 100644
> index 000000000000..647afb3a7c6a
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-parade-ps8640.dtsi
> @@ -0,0 +1,105 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Google Trogdor dts fragment for the boards with Parade ps8640 edp bridge
> + *
> + * Copyright 2021 Google LLC.
> + */
> +
> +/ {
> + pp3300_brij_ps8640: pp3300-brij-ps8640 {
> + compatible = "regulator-fixed";
> + status = "okay";
> + regulator-name = "pp3300_brij_ps8640";
> +
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> +
> + gpio = <&tlmm 32 GPIO_ACTIVE_HIGH>;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&en_pp3300_edp_brij_ps8640>;
> +
> + vin-supply = <&pp3300_a>;
> + };
> +};
> +
> +&dsi0_out {
> + remote-endpoint = <&ps8640_in>;
> +};
> +
> +&i2c2 {
> + ps8640_bridge: edp-bridge@8 {
> + compatible = "parade,ps8640";
> + reg = <0x8>;
> +
> + powerdown-gpios = <&tlmm 104 GPIO_ACTIVE_LOW>;
> + reset-gpios = <&tlmm 11 GPIO_ACTIVE_LOW>;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&edp_brij_en>, <&edp_brij_ps8640_rst>;
Ah here it is. Ignore my concern on patch #1.
> +
> + vdd12-supply = <&pp1200_brij>;
> + vdd33-supply = <&pp3300_brij_ps8640>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + ps8640_in: endpoint {
> + remote-endpoint = <&dsi0_out>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> + ps8640_out: endpoint {
> + remote-endpoint = <&panel_in_edp>;
> + };
> + };
> + };
> +
> + aux_bus: aux-bus {
The parade,ps8640 binding needs an update for aux-bus. Is that somewhere
in linux-next or on the list?
> + panel: panel {
> + /* Compatible will be filled in per-board */
> + power-supply = <&pp3300_dx_edp>;
> + backlight = <&backlight>;
> +
> + port {
> + panel_in_edp: endpoint {
> + remote-endpoint = <&ps8640_out>;
> + };
> + };
> + };
> + };
> + };
> +};
