arch/arm/boot/dts/samsung/exynos5422-odroidxu3-audio.dtsi
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/samsung/exynos5422-odroidxu3-audio.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/samsung/exynos5422-odroidxu3-audio.dtsi- Extension
.dtsi- Size
- 1830 bytes
- Lines
- 83
- 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.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Dependency Surface
dt-bindings/sound/samsung-i2s.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
/*
* Hardkernel Odroid XU3 audio subsystem device tree source
*
* Copyright (c) 2015 Krzysztof Kozlowski
* Copyright (c) 2014 Collabora Ltd.
* Copyright (c) 2013 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*/
#include <dt-bindings/sound/samsung-i2s.h>
/ {
sound: sound {
compatible = "samsung,odroid-xu3-audio";
model = "Odroid-XU3";
samsung,audio-widgets =
"Headphone", "Headphone Jack",
"Speakers", "Speakers";
audio-routing = "Headphone Jack", "HPL",
"Headphone Jack", "HPR",
"Headphone Jack", "MICBIAS",
"IN12", "Headphone Jack",
"Speakers", "SPKL",
"Speakers", "SPKR",
"I2S Playback", "Mixer DAI TX",
"HiFi Playback", "Mixer DAI TX",
"Mixer DAI RX", "HiFi Capture";
cpu {
sound-dai = <&i2s0 0>, <&i2s0 1>;
};
codec {
sound-dai = <&hdmi>, <&max98090>;
};
};
};
&hsi2c_5 {
status = "okay";
max98090: audio-codec@10 {
compatible = "maxim,max98090";
reg = <0x10>;
interrupt-parent = <&gpx3>;
interrupts = <2 IRQ_TYPE_NONE>;
clocks = <&i2s0 CLK_I2S_CDCLK>;
clock-names = "mclk";
#sound-dai-cells = <0>;
};
};
&i2s0 {
status = "okay";
assigned-clocks = <&clock CLK_MOUT_EPLL>,
<&clock CLK_MOUT_MAU_EPLL>,
<&clock CLK_MOUT_USER_MAU_EPLL>,
<&clock_audss EXYNOS_MOUT_AUDSS>,
<&clock_audss EXYNOS_MOUT_I2S>,
<&i2s0 CLK_I2S_RCLK_SRC>,
<&clock_audss EXYNOS_DOUT_SRP>,
<&clock_audss EXYNOS_DOUT_AUD_BUS>,
<&clock_audss EXYNOS_DOUT_I2S>;
assigned-clock-parents = <&clock CLK_FOUT_EPLL>,
<&clock CLK_MOUT_EPLL>,
<&clock CLK_MOUT_MAU_EPLL>,
<&clock CLK_MAU_EPLL>,
<&clock_audss EXYNOS_MOUT_AUDSS>,
<&clock_audss EXYNOS_SCLK_I2S>;
Annotation
- Immediate include surface: `dt-bindings/sound/samsung-i2s.h`.
- Atlas domain: Architecture Layer / arch/arm.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.