xref: /openbmc/linux/arch/arm64/boot/dts/qcom/sc7180-trogdor-ti-sn65dsi86.dtsi (revision 2612e3bbc0386368a850140a6c9b990cd496a5ec)

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Google Trogdor dts fragment for the boards with TI sn65dsi86 edp bridge
 *
 * Copyright 2021 Google LLC.
 */

#include <dt-bindings/gpio/gpio.h>

/*
 * ADDITIONS TO FIXED REGULATORS DEFINED IN PARENT DEVICE TREE FILES
 *
 * Sort order matches the order in the parent files (parents before children).
 */

&pp3300_dx_edp {
	off-on-delay-us = <500000>;

	/*
	 * It's nicer to start with this regulator enabled. The
	 * bootloader may have left it on and it's nice not to cause an
	 * extra power cycle of the touchscreen and eDP panel at bootup.
	 * This should help speed bootup because we have off-on-delay-us.
	 */
	regulator-boot-on;
};

/* ADDITIONS TO NODES DEFINED IN PARENT DEVICE TREE FILES */

edp_brij_i2c: &i2c2 {
	status = "okay";
	clock-frequency = <400000>;

	sn65dsi86_bridge: bridge@2d {
		compatible = "ti,sn65dsi86";
		reg = <0x2d>;
		pinctrl-names = "default";
		pinctrl-0 = <&edp_brij_en>, <&edp_brij_irq>;
		gpio-controller;
		#gpio-cells = <2>;

		interrupt-parent = <&tlmm>;
		interrupts = <11 IRQ_TYPE_LEVEL_HIGH>;

		enable-gpios = <&tlmm 104 GPIO_ACTIVE_HIGH>;

		vpll-supply = <&pp1800_edp_vpll>;
		vccio-supply = <&pp1800_brij_vccio>;
		vcca-supply = <&pp1200_brij>;
		vcc-supply = <&pp1200_brij>;

		clocks = <&rpmhcc RPMH_LN_BB_CLK3>;
		clock-names = "refclk";

		no-hpd;

		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;
				sn65dsi86_in: endpoint {
					remote-endpoint = <&mdss_dsi0_out>;
				};
			};

			port@1 {
				reg = <1>;
				sn65dsi86_out: endpoint {
					data-lanes = <0 1>;
					remote-endpoint = <&panel_in_edp>;
				};
			};
		};

		aux-bus {
			panel: panel {
				/* Compatible will be filled in per-board */
				power-supply = <&pp3300_dx_edp>;
				backlight = <&backlight>;
				hpd-gpios = <&sn65dsi86_bridge 2 GPIO_ACTIVE_HIGH>;

				port {
					panel_in_edp: endpoint {
						remote-endpoint = <&sn65dsi86_out>;
					};
				};
			};
		};
	};
};

&mdss_dsi0_out {
	remote-endpoint = <&sn65dsi86_in>;
};

&tlmm {
	edp_brij_irq: edp-brij-irq-state {
		pins = "gpio11";
		function = "gpio";
		drive-strength = <2>;
		bias-pull-down;
	};
};