arch/arm/boot/dts/renesas/iwg20d-q7-common.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/renesas/iwg20d-q7-common.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/renesas/iwg20d-q7-common.dtsi
Extension
.dtsi
Size
6530 bytes
Lines
375
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
/*
 * Device Tree Source for the iWave-RZ/G1M/G1N Qseven carrier board
 *
 * Copyright (C) 2017 Renesas Electronics Corp.
 */

/*
 * SSI-SGTL5000
 *
 * This command is required when Playback/Capture
 *
 *      amixer set "DVC Out" 100%
 *      amixer set "DVC In" 100%
 *
 * You can use Mute
 *
 *      amixer set "DVC Out Mute" on
 *      amixer set "DVC In Mute" on
 *
 * You can use Volume Ramp
 *
 *      amixer set "DVC Out Ramp Up Rate"   "0.125 dB/64 steps"
 *      amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps"
 *      amixer set "DVC Out Ramp" on
 *      aplay xxx.wav &
 *      amixer set "DVC Out"  80%  // Volume Down
 *      amixer set "DVC Out" 100%  // Volume Up
 */

/ {
	aliases {
		serial0 = &scif0;
		serial3 = &scifb1;
		ethernet0 = &avb;
	};

	chosen {
		bootargs = "ignore_loglevel rw root=/dev/nfs ip=dhcp";
		stdout-path = "serial0:115200n8";
	};

	audio_clock: audio_clock {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <26000000>;
	};

	lcd_backlight: backlight {
		compatible = "pwm-backlight";

		pwms = <&pwm3 0 5000000>;
		brightness-levels = <0 4 8 16 32 64 128 255>;
		default-brightness-level = <7>;
		enable-gpios = <&gpio5 14 GPIO_ACTIVE_HIGH>;
	};

	lvds-receiver {
		compatible = "ti,ds90cf384a", "lvds-decoder";
		power-supply = <&vcc_3v3_tft1>;

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

			port@0 {
				reg = <0>;
				lvds_receiver_in: endpoint {
					remote-endpoint = <&lvds0_out>;
				};

Annotation

Implementation Notes