arch/arm/boot/dts/microchip/at91-nattis-2-natte-2.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91-nattis-2-natte-2.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/at91-nattis-2-natte-2.dts
Extension
.dts
Size
5877 bytes
Lines
307
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+
/*
 * at91-nattis-2-natte-2.dts - Device Tree file for the Linea/Nattis board
 *
 * Copyright (C) 2017 Axentia Technologies AB
 *
 * Author: Peter Rosin <peda@axentia.se>
 */
/dts-v1/;
#include "at91-linea.dtsi"
#include "at91-natte.dtsi"

/ {
	model = "Axentia Linea-Nattis v2 Natte v2";
	compatible = "axentia,nattis-2", "axentia,natte-2", "axentia,linea",
		     "atmel,sama5d31", "atmel,sama5d3", "atmel,sama5";

	gpio-keys {
		compatible = "gpio-keys";

		key-wakeup {
			label = "Wakeup";
			linux,code = <10>;
			wakeup-source;
			gpios = <&pioB 27 GPIO_ACTIVE_LOW>;
		};
	};

	panel_reg: panel-regulator {
		compatible = "regulator-fixed";
		regulator-name = "panel-VCC";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
	};

	bl_reg: backlight-regulator {
		compatible = "regulator-fixed";
		regulator-name = "panel-VDD";
		regulator-min-microvolt = <12000000>;
		regulator-max-microvolt = <12000000>;
	};

	panel_bl: backlight {
		compatible = "pwm-backlight";
		pwms = <&hlcdc_pwm 0 100000 0>;

		brightness-levels = < 0  1  2  3  4  5  6  7  8  9
				     10 11 12 13 14 15 16 17 18 19
				     20 21 22 23 24 25 26 27 28 29
				     30 31 32 33 34 35 36 37 38 39
				     40 41 42 43 44 45 46 47 48 49
				     50 51 52 53 54 55 56 57 58 59
				     60 61 62 63 64 65 66 67 68 69
				     70 71 72 73 74 75 76 77 78 79
				     80 81 82 83 84 85 86 87 88 89
				     90 91 92 93 94 95 96 97 98 99
				    100>;
		default-brightness-level = <40>;

		power-supply = <&bl_reg>;
		enable-gpios = <&pioA 20 GPIO_ACTIVE_HIGH>;
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_blon>;
	};

	panel: panel {
		compatible = "sharp,lq150x1lg11", "panel-lvds";

		backlight = <&panel_bl>;
		power-supply = <&panel_reg>;

Annotation

Implementation Notes