arch/arm/boot/dts/rockchip/rk3288-veyron-analog-audio.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/rockchip/rk3288-veyron-analog-audio.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/rockchip/rk3288-veyron-analog-audio.dtsi
Extension
.dtsi
Size
2051 bytes
Lines
98
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
/*
 * Google Veyron (and derivatives) fragment for the  max98090 audio
 * codec and analog headphone jack.
 *
 * Copyright 2016 Google, Inc
 */

/ {
	sound {
		compatible = "rockchip,rockchip-audio-max98090";
		pinctrl-names = "default";
		pinctrl-0 = <&mic_det>, <&hp_det>;
		rockchip,model = "VEYRON-I2S";
		rockchip,i2s-controller = <&i2s>;
		rockchip,audio-codec = <&max98090>;
		rockchip,headset-codec = <&headsetcodec>;
		rockchip,hdmi-codec = <&hdmi>;
	};
};

&i2c2 {
	max98090: max98090@10 {
		compatible = "maxim,max98090";
		reg = <0x10>;
		interrupt-parent = <&gpio6>;
		interrupts = <RK_PA7 IRQ_TYPE_EDGE_FALLING>;
		clock-names = "mclk";
		clocks = <&cru SCLK_I2S0_OUT>;
		pinctrl-names = "default";
		pinctrl-0 = <&int_codec>;
	};
};

&i2c4 {
	headsetcodec: ts3a227e@3b {
		compatible = "ti,ts3a227e";
		reg = <0x3b>;
		interrupt-parent = <&gpio0>;
		interrupts = <RK_PA3 IRQ_TYPE_LEVEL_LOW>;
		pinctrl-names = "default";
		pinctrl-0 = <&ts3a227e_int_l>;
		ti,micbias = <7>;		/* MICBIAS = 2.8V */
	};
};

&i2s {
	status = "okay";
};

&io_domains {
	audio-supply = <&vcc18_codec>;
};

&rk808 {
	vcc10-supply = <&vcc33_sys>;

	regulators {
		vcc18_codec: LDO_REG6 {
			regulator-name = "vcc18_codec";
			regulator-always-on;
			regulator-boot-on;
			regulator-min-microvolt = <1800000>;
			regulator-max-microvolt = <1800000>;
			regulator-state-mem {
				regulator-off-in-suspend;
			};
		};
	};
};

Annotation

Implementation Notes