1// SPDX-License-Identifier: (GPL-2.0+ OR MIT) 2/* 3 * Google Trogdor dts fragment for the boards with TI sn65dsi86 edp bridge 4 * 5 * Copyright 2021 Google LLC. 6 */ 7 8#include <dt-bindings/gpio/gpio.h> 9 10/* 11 * ADDITIONS TO FIXED REGULATORS DEFINED IN PARENT DEVICE TREE FILES 12 * 13 * Sort order matches the order in the parent files (parents before children). 14 */ 15 16&pp3300_dx_edp { 17 off-on-delay-us = <500000>; 18 19 /* 20 * It's nicer to start with this regulator enabled. The 21 * bootloader may have left it on and it's nice not to cause an 22 * extra power cycle of the touchscreen and eDP panel at bootup. 23 * This should help speed bootup because we have off-on-delay-us. 24 */ 25 regulator-boot-on; 26}; 27 28/* ADDITIONS TO NODES DEFINED IN PARENT DEVICE TREE FILES */ 29 30&dsi0_out { 31 remote-endpoint = <&sn65dsi86_in>; 32}; 33 34edp_brij_i2c: &i2c2 { 35 status = "okay"; 36 clock-frequency = <400000>; 37 38 sn65dsi86_bridge: bridge@2d { 39 compatible = "ti,sn65dsi86"; 40 reg = <0x2d>; 41 pinctrl-names = "default"; 42 pinctrl-0 = <&edp_brij_en>, <&edp_brij_irq>; 43 gpio-controller; 44 #gpio-cells = <2>; 45 46 interrupt-parent = <&tlmm>; 47 interrupts = <11 IRQ_TYPE_LEVEL_HIGH>; 48 49 enable-gpios = <&tlmm 104 GPIO_ACTIVE_HIGH>; 50 51 vpll-supply = <&pp1800_edp_vpll>; 52 vccio-supply = <&pp1800_brij_vccio>; 53 vcca-supply = <&pp1200_brij>; 54 vcc-supply = <&pp1200_brij>; 55 56 clocks = <&rpmhcc RPMH_LN_BB_CLK3>; 57 clock-names = "refclk"; 58 59 no-hpd; 60 61 ports { 62 #address-cells = <1>; 63 #size-cells = <0>; 64 65 port@0 { 66 reg = <0>; 67 sn65dsi86_in: endpoint { 68 remote-endpoint = <&dsi0_out>; 69 }; 70 }; 71 72 port@1 { 73 reg = <1>; 74 sn65dsi86_out: endpoint { 75 data-lanes = <0 1>; 76 remote-endpoint = <&panel_in_edp>; 77 }; 78 }; 79 }; 80 81 aux-bus { 82 panel: panel { 83 /* Compatible will be filled in per-board */ 84 power-supply = <&pp3300_dx_edp>; 85 backlight = <&backlight>; 86 hpd-gpios = <&sn65dsi86_bridge 2 GPIO_ACTIVE_HIGH>; 87 88 port { 89 panel_in_edp: endpoint { 90 remote-endpoint = <&sn65dsi86_out>; 91 }; 92 }; 93 }; 94 }; 95 }; 96}; 97 98&tlmm { 99 edp_brij_irq: edp-brij-irq-state { 100 pins = "gpio11"; 101 function = "gpio"; 102 drive-strength = <2>; 103 bias-pull-down; 104 }; 105}; 106