arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi
Extension
.dtsi
Size
11582 bytes
Lines
586
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Google Gru-Chromebook shared properties
 *
 * Copyright 2018 Google, Inc
 */

#include "rk3399-gru.dtsi"

/ {
	pp900_ap: regulator-pp900-ap {
		compatible = "regulator-fixed";
		regulator-name = "pp900_ap";

		/* EC turns on w/ pp900_ap_en; always on for AP */
		regulator-always-on;
		regulator-boot-on;
		regulator-min-microvolt = <900000>;
		regulator-max-microvolt = <900000>;

		vin-supply = <&ppvar_sys>;
	};

	/* EC turns on w/ pp900_usb_en */
	pp900_usb: regulator-pp900-ap {
	};

	/* EC turns on w/ pp900_pcie_en */
	pp900_pcie: regulator-pp900-ap {
	};

	pp3000: regulator-pp3000 {
		compatible = "regulator-fixed";
		regulator-name = "pp3000";
		pinctrl-names = "default";
		pinctrl-0 = <&pp3000_en>;

		enable-active-high;
		gpio = <&gpio0 12 GPIO_ACTIVE_HIGH>;

		regulator-always-on;
		regulator-boot-on;
		regulator-min-microvolt = <3000000>;
		regulator-max-microvolt = <3000000>;

		vin-supply = <&ppvar_sys>;
	};

	ppvar_centerlogic_pwm: regulator-ppvar-centerlogic-pwm {
		compatible = "pwm-regulator";
		regulator-name = "ppvar_centerlogic_pwm";

		pwms = <&pwm3 0 3337 0>;
		pwm-supply = <&ppvar_sys>;
		pwm-dutycycle-range = <100 0>;
		pwm-dutycycle-unit = <100>;

		/* EC turns on w/ ppvar_centerlogic_en; always on for AP */
		regulator-always-on;
		regulator-boot-on;
		regulator-min-microvolt = <799434>;
		regulator-max-microvolt = <1049925>;
	};

	ppvar_centerlogic: ppvar-centerlogic {
		compatible = "vctrl-regulator";
		regulator-name = "ppvar_centerlogic";

		regulator-min-microvolt = <799434>;
		regulator-max-microvolt = <1049925>;

Annotation

Implementation Notes