drivers/gpu/drm/panel/panel-edp.c

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/panel/panel-edp.c

Extension

.c

Size

69247 bytes

Lines

2284

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.
• 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/debugfs.h
• linux/delay.h
• linux/gpio/consumer.h
• linux/iopoll.h
• linux/module.h
• linux/of_platform.h
• linux/platform_device.h
• linux/pm_runtime.h
• linux/regulator/consumer.h
• video/display_timing.h
• video/of_display_timing.h
• video/videomode.h
• drm/display/drm_dp_aux_bus.h
• drm/display/drm_dp_helper.h
• drm/drm_crtc.h
• drm/drm_device.h
• drm/drm_edid.h
• drm/drm_panel.h

Detected Declarations

• struct panel_delay
• struct panel_desc
• struct edp_panel_entry
• struct panel_edp
• function panel_edp_get_timings_modes
• function panel_edp_get_display_modes
• function panel_edp_override_edid_mode
• function panel_edp_get_non_edid_modes
• function panel_edp_wait
• function panel_edp_disable
• function panel_edp_suspend
• function panel_edp_unprepare
• function panel_edp_get_hpd_gpio
• function panel_edp_can_read_hpd
• function panel_edp_prepare_once
• function panel_edp_resume
• function panel_edp_prepare
• function panel_edp_enable
• function panel_edp_get_modes
• function panel_edp_get_timings
• function panel_edp_get_orientation
• function detected_panel_show
• function panel_edp_debugfs_init
• function panel_edp_parse_panel_timing_node
• function panel_edp_set_conservative_timings
• function generic_edp_panel_probe
• function panel_edp_probe
• function panel_edp_shutdown
• function panel_edp_remove
• function panel_edp_platform_probe
• function panel_edp_platform_remove
• function panel_edp_platform_shutdown
• function panel_edp_dp_aux_ep_probe
• function panel_edp_dp_aux_ep_remove
• function panel_edp_dp_aux_ep_shutdown
• function panel_edp_init
• function panel_edp_exit
• module init panel_edp_init

Annotated Snippet

module_init(panel_edp_init);

static void __exit panel_edp_exit(void)
{
	dp_aux_dp_driver_unregister(&panel_edp_dp_aux_ep_driver);
	platform_driver_unregister(&panel_edp_platform_driver);
}
module_exit(panel_edp_exit);

MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>");
MODULE_DESCRIPTION("DRM Driver for Simple eDP Panels");
MODULE_LICENSE("GPL and additional rights");

Annotation

• Immediate include surface: `linux/debugfs.h`, `linux/delay.h`, `linux/gpio/consumer.h`, `linux/iopoll.h`, `linux/module.h`, `linux/of_platform.h`, `linux/platform_device.h`, `linux/pm_runtime.h`.
• Detected declarations: `struct panel_delay`, `struct panel_desc`, `struct edp_panel_entry`, `struct panel_edp`, `function panel_edp_get_timings_modes`, `function panel_edp_get_display_modes`, `function panel_edp_override_edid_mode`, `function panel_edp_get_non_edid_modes`, `function panel_edp_wait`, `function panel_edp_disable`.
• 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.