drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.h

Extension

.h

Size

812 bytes

Lines

33

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/types.h

Detected Declarations

• struct drm_gem_dma_object
• struct shmob_drm_device
• struct shmob_drm_format_info

Annotated Snippet

struct shmob_drm_format_info {
	u32 fourcc;
	u32 lddfr;	/* LCD Data Format Register */
	u16 ldbbsifr;	/* CHn Source Image Format Register low bits */
	u8 ldddsr;	/* LCDC Input Image Data Swap Register low bits */
	u8 bpp;
};

#define shmob_drm_format_is_yuv(format)	((format)->lddfr & LDDFR_CC)

const struct shmob_drm_format_info *shmob_drm_format_info(u32 fourcc);

int shmob_drm_modeset_init(struct shmob_drm_device *sdev);

#endif /* __SHMOB_DRM_KMS_H__ */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct drm_gem_dma_object`, `struct shmob_drm_device`, `struct shmob_drm_format_info`.
• 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.