drivers/video/fbdev/mmp/fb/mmpfb.c

File Facts

System

Linux kernel

Corpus path

drivers/video/fbdev/mmp/fb/mmpfb.c

Extension

.c

Size

18182 bytes

Lines

662

Domain

Driver Families

Bucket

drivers/video

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/dma-mapping.h
• linux/platform_device.h
• mmpfb.h

Detected Declarations

• function Copyright
• function pixfmt_to_var
• function fbmode_to_mmpmode
• function mmpmode_to_fbmode
• function mmpfb_check_var
• function chan_to_field
• function to_rgb
• function mmpfb_setcolreg
• function mmpfb_pan_display
• function var_update
• function mmpfb_set_win
• function mmpfb_set_par
• function mmpfb_power
• function mmpfb_blank
• function modes_setup
• function fb_info_setup
• function fb_info_clear
• function mmpfb_probe
• function mmpfb_init
• module init mmpfb_init

Annotated Snippet

module_init(mmpfb_init);

MODULE_AUTHOR("Zhou Zhu <zhou.zhu@marvell.com>");
MODULE_DESCRIPTION("Framebuffer driver for Marvell displays");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/dma-mapping.h`, `linux/platform_device.h`, `mmpfb.h`.
• Detected declarations: `function Copyright`, `function pixfmt_to_var`, `function fbmode_to_mmpmode`, `function mmpmode_to_fbmode`, `function mmpfb_check_var`, `function chan_to_field`, `function to_rgb`, `function mmpfb_setcolreg`, `function mmpfb_pan_display`, `function var_update`.
• Atlas domain: Driver Families / drivers/video.
• Implementation status: integration implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.