drivers/gpu/drm/loongson/lsdc_i2c.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/loongson/lsdc_i2c.h

Extension

.h

Size

556 bytes

Lines

30

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

• linux/i2c.h
• linux/i2c-algo-bit.h

Detected Declarations

• struct lsdc_i2c
• struct lsdc_display_pipe

Annotated Snippet

struct lsdc_i2c {
	struct i2c_adapter adapter;
	struct i2c_algo_bit_data bit;
	struct drm_device *ddev;
	void __iomem *dir_reg;
	void __iomem *dat_reg;
	/* pin bit mask */
	u8 sda;
	u8 scl;
};

struct lsdc_display_pipe;

int lsdc_create_i2c_chan(struct drm_device *ddev,
			 struct lsdc_display_pipe *dispipe,
			 unsigned int index);

#endif

Annotation

• Immediate include surface: `linux/i2c.h`, `linux/i2c-algo-bit.h`.
• Detected declarations: `struct lsdc_i2c`, `struct lsdc_display_pipe`.
• 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.