arch/arm/boot/dts/samsung/exynos4412-galaxy-s3.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/samsung/exynos4412-galaxy-s3.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/samsung/exynos4412-galaxy-s3.dtsi
Extension
.dtsi
Size
4476 bytes
Lines
216
Domain
Architecture Layer
Bucket
arch/arm
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
/*
 * Samsung's Exynos4412 based Galaxy S3 board device tree source
 *
 * Copyright (c) 2013 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com
 */

/dts-v1/;
#include <dt-bindings/leds/common.h>
#include "exynos4412-midas.dtsi"

/ {
	aliases {
		i2c9 = &i2c_ak8975;
		i2c10 = &i2c_cm36651;
	};

	led-controller {
		compatible = "skyworks,aat1290";
		flen-gpios = <&gpj1 1 GPIO_ACTIVE_HIGH>;
		enset-gpios = <&gpj1 2 GPIO_ACTIVE_HIGH>;

		pinctrl-names = "default", "host", "isp";
		pinctrl-0 = <&camera_flash_host>;
		pinctrl-1 = <&camera_flash_host>;
		pinctrl-2 = <&camera_flash_isp>;

		led {
			function = LED_FUNCTION_FLASH;
			color = <LED_COLOR_ID_WHITE>;
			led-max-microamp = <520833>;
			flash-max-microamp = <1012500>;
			flash-max-timeout-us = <1940000>;
		};
	};

	lcd_vdd3_reg: voltage-regulator-10 {
		compatible = "regulator-fixed";
		regulator-name = "LCD_VDD_2.2V";
		regulator-min-microvolt = <2200000>;
		regulator-max-microvolt = <2200000>;
		gpio = <&gpc0 1 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};

	ps_als_reg: voltage-regulator-11 {
		compatible = "regulator-fixed";
		regulator-name = "LED_A_3.0V";
		regulator-min-microvolt = <3000000>;
		regulator-max-microvolt = <3000000>;
		gpio = <&gpj0 5 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};

	i2c_ak8975: i2c-13 {
		compatible = "i2c-gpio";
		sda-gpios = <&gpy2 4 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
		scl-gpios = <&gpy2 5 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
		i2c-gpio,delay-us = <2>;
		#address-cells = <1>;
		#size-cells = <0>;

		magnetometer@c {
			compatible = "asahi-kasei,ak8975";
			reg = <0x0c>;
			gpios = <&gpj0 7 GPIO_ACTIVE_HIGH>;
		};
	};

Annotation

Implementation Notes