arch/arm64/boot/dts/qcom/sc7180-trogdor-ti-sn65dsi86.dtsi

   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 edp_brij_i2c: &i2c2 {
  31         status = "okay";
  32         clock-frequency = <400000>;
  33
  34         sn65dsi86_bridge: bridge@2d {
  35                 compatible = "ti,sn65dsi86";
  36                 reg = <0x2d>;
  37                 pinctrl-names = "default";
  38                 pinctrl-0 = <&edp_brij_en>, <&edp_brij_irq>;
  39                 gpio-controller;
  40                 #gpio-cells = <2>;
  41
  42                 interrupt-parent = <&tlmm>;
  43                 interrupts = <11 IRQ_TYPE_LEVEL_HIGH>;
  44
  45                 enable-gpios = <&tlmm 104 GPIO_ACTIVE_HIGH>;
  46
  47                 vpll-supply = <&pp1800_edp_vpll>;
  48                 vccio-supply = <&pp1800_brij_vccio>;
  49                 vcca-supply = <&pp1200_brij>;
  50                 vcc-supply = <&pp1200_brij>;
  51
  52                 clocks = <&rpmhcc RPMH_LN_BB_CLK3>;
  53                 clock-names = "refclk";
  54
  55                 no-hpd;
  56
  57                 ports {
  58                         #address-cells = <1>;
  59                         #size-cells = <0>;
  60
  61                         port@0 {
  62                                 reg = <0>;
  63                                 sn65dsi86_in: endpoint {
  64                                         remote-endpoint = <&mdss_dsi0_out>;
  65                                 };
  66                         };
  67
  68                         port@1 {
  69                                 reg = <1>;
  70                                 sn65dsi86_out: endpoint {
  71                                         data-lanes = <0 1>;
  72                                         remote-endpoint = <&panel_in_edp>;
  73                                 };
  74                         };
  75                 };
  76
  77                 aux-bus {
  78                         panel: panel {
  79                                 /* Compatible will be filled in per-board */
  80                                 power-supply = <&pp3300_dx_edp>;
  81                                 backlight = <&backlight>;
  82                                 hpd-gpios = <&sn65dsi86_bridge 2 GPIO_ACTIVE_HIGH>;
  83
  84                                 port {
  85                                         panel_in_edp: endpoint {
  86                                                 remote-endpoint = <&sn65dsi86_out>;
  87                                         };
  88                                 };
  89                         };
  90                 };
  91         };
  92 };
  93
  94 &mdss_dsi0_out {
  95         remote-endpoint = <&sn65dsi86_in>;
  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 };