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 49&dsi0_out { 50 remote-endpoint = <&ps8640_in>; 51}; 52 53edp_brij_i2c: &i2c2 { 54 status = "okay"; 55 clock-frequency = <400000>; 56 57 ps8640_bridge: bridge@8 { 58 compatible = "parade,ps8640"; 59 reg = <0x8>; 60 61 powerdown-gpios = <&tlmm 104 GPIO_ACTIVE_LOW>; 62 reset-gpios = <&tlmm 11 GPIO_ACTIVE_LOW>; 63 64 pinctrl-names = "default"; 65 pinctrl-0 = <&edp_brij_en>, <&edp_brij_ps8640_rst>; 66 67 vdd12-supply = <&pp1200_brij>; 68 vdd33-supply = <&pp3300_brij_ps8640>; 69 70 ports { 71 #address-cells = <1>; 72 #size-cells = <0>; 73 74 port@0 { 75 reg = <0>; 76 ps8640_in: endpoint { 77 remote-endpoint = <&dsi0_out>; 78 }; 79 }; 80 81 port@1 { 82 reg = <1>; 83 ps8640_out: endpoint { 84 remote-endpoint = <&panel_in_edp>; 85 }; 86 }; 87 }; 88 89 aux-bus { 90 panel: panel { 91 /* Compatible will be filled in per-board */ 92 power-supply = <&pp3300_dx_edp>; 93 backlight = <&backlight>; 94 95 port { 96 panel_in_edp: endpoint { 97 remote-endpoint = <&ps8640_out>; 98 }; 99 }; 100 }; 101 }; 102 }; 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}; 120