drivers/gpu/drm/imx/ipuv3/imx-drm-core.c

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/imx/ipuv3/imx-drm-core.c

Extension

.c

Size

9456 bytes

Lines

378

Domain

Driver Families

Bucket

drivers/gpu

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/component.h
• linux/device.h
• linux/dma-buf.h
• linux/module.h
• linux/platform_device.h
• video/imx-ipu-v3.h
• drm/clients/drm_client_setup.h
• drm/drm_atomic.h
• drm/drm_atomic_helper.h
• drm/drm_drv.h
• drm/drm_dumb_buffers.h
• drm/drm_fbdev_dma.h
• drm/drm_fourcc.h
• drm/drm_gem_dma_helper.h
• drm/drm_gem_framebuffer_helper.h
• drm/drm_managed.h
• drm/drm_of.h
• drm/drm_probe_helper.h
• drm/drm_vblank.h
• imx-drm.h
• ipuv3-plane.h

Detected Declarations

• function imx_drm_atomic_check
• function imx_drm_atomic_commit_tail
• function for_each_oldnew_plane_in_state
• function imx_drm_encoder_parse_of
• function imx_drm_dumb_create
• function compare_of
• function imx_drm_bind
• function imx_drm_unbind
• function imx_drm_platform_probe
• function imx_drm_platform_remove
• function imx_drm_platform_shutdown
• function imx_drm_suspend
• function imx_drm_resume
• function imx_drm_init
• function imx_drm_exit
• module init imx_drm_init
• export imx_drm_encoder_parse_of

Annotated Snippet

module_init(imx_drm_init);

static void __exit imx_drm_exit(void)
{
	platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
}
module_exit(imx_drm_exit);

MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
MODULE_DESCRIPTION("i.MX drm driver core");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/component.h`, `linux/device.h`, `linux/dma-buf.h`, `linux/module.h`, `linux/platform_device.h`, `video/imx-ipu-v3.h`, `drm/clients/drm_client_setup.h`, `drm/drm_atomic.h`.
• Detected declarations: `function imx_drm_atomic_check`, `function imx_drm_atomic_commit_tail`, `function for_each_oldnew_plane_in_state`, `function imx_drm_encoder_parse_of`, `function imx_drm_dumb_create`, `function compare_of`, `function imx_drm_bind`, `function imx_drm_unbind`, `function imx_drm_platform_probe`, `function imx_drm_platform_remove`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.