drivers/soundwire/amd_init.h

File Facts

System

Linux kernel

Corpus path

drivers/soundwire/amd_init.h

Extension

.h

Size

473 bytes

Lines

22

Domain

Driver Families

Bucket

drivers/soundwire

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/soundwire/sdw_amd.h

Detected Declarations

• function amd_updatel

Annotated Snippet

#ifndef __AMD_INIT_H
#define __AMD_INIT_H

#include <linux/soundwire/sdw_amd.h>

int amd_sdw_manager_start(struct amd_sdw_manager *amd_manager);

static inline void amd_updatel(void __iomem *mmio, int offset, u32 mask, u32 val)
{
	u32 tmp;

	tmp = readl(mmio + offset);
	tmp = (tmp & ~mask) | val;
	writel(tmp, mmio + offset);
}
#endif

Annotation

• Immediate include surface: `linux/soundwire/sdw_amd.h`.
• Detected declarations: `function amd_updatel`.
• Atlas domain: Driver Families / drivers/soundwire.
• Implementation status: source implementation candidate.

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.