drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c

Extension

.c

Size

2407 bytes

Lines

74

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

• priv.h
• pad.h

Detected Declarations

• function files
• function g94_aux_mask
• function g94_i2c_new

Annotated Snippet

if (mask & (1 << i)) {
			if (!(data & (1 << i))) {
				temp &= ~(type << (i * 4));
				continue;
			}
			temp |= type << (i * 4);
		}
	}
	nvkm_wr32(device, 0x00e068, temp);
}

static const struct nvkm_i2c_func
g94_i2c = {
	.pad_x_new = g94_i2c_pad_x_new,
	.pad_s_new = g94_i2c_pad_s_new,
	.aux = 4,
	.aux_stat = g94_aux_stat,
	.aux_mask = g94_aux_mask,
};

int
g94_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
	    struct nvkm_i2c **pi2c)
{
	return nvkm_i2c_new_(&g94_i2c, device, type, inst, pi2c);
}

Annotation

• Immediate include surface: `priv.h`, `pad.h`.
• Detected declarations: `function files`, `function g94_aux_mask`, `function g94_i2c_new`.
• 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.