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
 30edp_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};