arch/arm64/boot/dts/qcom/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
  49 edp_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 };