sc7180-trogdor-parade-ps8640.dtsi

  1// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
  2/*
  3 * Google Trogdor dts fragment for the boards with Parade ps8640 edp bridge
  4 *
  5 * Copyright 2021 Google LLC.
  6 */
  7
  8#include <dt-bindings/gpio/gpio.h>
  9
 10/ {
 11	pp3300_brij_ps8640: pp3300-brij-ps8640-regulator {
 12		compatible = "regulator-fixed";
 13		status = "okay";
 14		regulator-name = "pp3300_brij_ps8640";
 15
 16		regulator-min-microvolt = <3300000>;
 17		regulator-max-microvolt = <3300000>;
 18
 19		gpio = <&tlmm 32 GPIO_ACTIVE_HIGH>;
 20		enable-active-high;
 21
 22		pinctrl-names = "default";
 23		pinctrl-0 = <&en_pp3300_edp_brij_ps8640>;
 24
 25		vin-supply = <&pp3300_a>;
 26	};
 27};
 28
 29/*
 30 * ADDITIONS TO FIXED REGULATORS DEFINED IN PARENT DEVICE TREE FILES
 31 *
 32 * Sort order matches the order in the parent files (parents before children).
 33 */
 34
 35&pp3300_dx_edp {
 36	off-on-delay-us = <500000>;
 37
 38	/*
 39	 * It's nicer to start with this regulator enabled. The
 40	 * bootloader may have left it on and it's nice not to cause an
 41	 * extra power cycle of the touchscreen and eDP panel at bootup.
 42	 * This should help speed bootup because we have off-on-delay-us.
 43	 */
 44	regulator-boot-on;
 45};
 46
 47/* ADDITIONS TO NODES DEFINED IN PARENT DEVICE TREE FILES */
 48
 49edp_brij_i2c: &i2c2 {
 50	status = "okay";
 51	clock-frequency = <400000>;
 52
 53	ps8640_bridge: bridge@8 {
 54		compatible = "parade,ps8640";
 55		reg = <0x8>;
 56
 57		powerdown-gpios = <&tlmm 104 GPIO_ACTIVE_LOW>;
 58		reset-gpios = <&tlmm 11 GPIO_ACTIVE_LOW>;
 59
 60		pinctrl-names = "default";
 61		pinctrl-0 = <&edp_brij_en>, <&edp_brij_ps8640_rst>;
 62
 63		vdd12-supply = <&pp1200_brij>;
 64		vdd33-supply = <&pp3300_brij_ps8640>;
 65
 66		ports {
 67			#address-cells = <1>;
 68			#size-cells = <0>;
 69
 70			port@0 {
 71				reg = <0>;
 72				ps8640_in: endpoint {
 73					remote-endpoint = <&mdss_dsi0_out>;
 74				};
 75			};
 76
 77			port@1 {
 78				reg = <1>;
 79				ps8640_out: endpoint {
 80					remote-endpoint = <&panel_in_edp>;
 81				};
 82			};
 83		};
 84
 85		aux-bus {
 86			panel: panel {
 87				/* Compatible will be filled in per-board */
 88				power-supply = <&pp3300_dx_edp>;
 89				backlight = <&backlight>;
 90
 91				port {
 92					panel_in_edp: endpoint {
 93						remote-endpoint = <&ps8640_out>;
 94					};
 95				};
 96			};
 97		};
 98	};
 99};
100
101&mdss_dsi0_out {
102	remote-endpoint = <&ps8640_in>;
103};
104
105&tlmm {
106	edp_brij_ps8640_rst: edp-brij-ps8640-rst-state {
107		pins = "gpio11";
108		function = "gpio";
109		drive-strength = <2>;
110		bias-disable;
111	};
112
113	en_pp3300_edp_brij_ps8640: en-pp3300-edp-brij-ps8640-state {
114		pins = "gpio32";
115		function = "gpio";
116		drive-strength = <2>;
117		bias-disable;
118	};
119};