drivers/gpu/drm/nouveau/nvkm/subdev/i2c/priv.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/nouveau/nvkm/subdev/i2c/priv.h

Extension

.h

Size

1248 bytes

Lines

38

Domain

Driver Families

Bucket

drivers/gpu

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

• subdev/i2c.h

Detected Declarations

• struct nvkm_i2c_func

Annotated Snippet

struct nvkm_i2c_func {
	int (*pad_x_new)(struct nvkm_i2c *, int id, struct nvkm_i2c_pad **);
	int (*pad_s_new)(struct nvkm_i2c *, int id, struct nvkm_i2c_pad **);

	/* number of native dp aux channels present */
	int aux;

	/* read and ack pending interrupts, returning only data
	 * for ports that have not been masked off, while still
	 * performing the ack for anything that was pending.
	 */
	void (*aux_stat)(struct nvkm_i2c *, u32 *, u32 *, u32 *, u32 *);

	/* mask on/off interrupt types for a given set of auxch
	 */
	void (*aux_mask)(struct nvkm_i2c *, u32, u32, u32);

	/* enable/disable HW-initiated DPCD reads
	 */
	void (*aux_autodpcd)(struct nvkm_i2c *, int aux, bool enable);
};

void g94_aux_stat(struct nvkm_i2c *, u32 *, u32 *, u32 *, u32 *);
void g94_aux_mask(struct nvkm_i2c *, u32, u32, u32);

void gk104_aux_stat(struct nvkm_i2c *, u32 *, u32 *, u32 *, u32 *);
void gk104_aux_mask(struct nvkm_i2c *, u32, u32, u32);
#endif

Annotation

• Immediate include surface: `subdev/i2c.h`.
• Detected declarations: `struct nvkm_i2c_func`.
• Atlas domain: Driver Families / drivers/gpu.
• 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.