drivers/gpu/drm/i915/display/intel_opregion.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/display/intel_opregion.h

Extension

.h

Size

4057 bytes

Lines

146

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/pci.h
• linux/types.h

Detected Declarations

• struct intel_connector
• struct intel_display
• struct intel_encoder
• function intel_opregion_setup
• function intel_opregion_cleanup
• function intel_opregion_asle_intr
• function intel_opregion_notify_adapter
• function intel_opregion_get_panel_type
• function intel_opregion_get_edid
• function intel_opregion_vbt_present
• function intel_opregion_get_vbt
• function intel_opregion_headless_sku
• function intel_opregion_debugfs_register

Annotated Snippet

#ifndef _INTEL_OPREGION_H_
#define _INTEL_OPREGION_H_

#include <linux/pci.h>
#include <linux/types.h>

struct intel_connector;
struct intel_display;
struct intel_encoder;

#ifdef CONFIG_ACPI

int intel_opregion_setup(struct intel_display *display);
void intel_opregion_cleanup(struct intel_display *display);

void intel_opregion_register(struct intel_display *display);
void intel_opregion_unregister(struct intel_display *display);

void intel_opregion_resume(struct intel_display *display);
void intel_opregion_suspend(struct intel_display *display,
			    pci_power_t state);

bool intel_opregion_asle_present(struct intel_display *display);
void intel_opregion_asle_intr(struct intel_display *display);
int intel_opregion_notify_encoder(struct intel_encoder *encoder,
				  bool enable);
int intel_opregion_notify_adapter(struct intel_display *display,
				  pci_power_t state);
int intel_opregion_get_panel_type(struct intel_display *display);
const struct drm_edid *intel_opregion_get_edid(struct intel_connector *connector);

bool intel_opregion_vbt_present(struct intel_display *display);
const void *intel_opregion_get_vbt(struct intel_display *display, size_t *size);

bool intel_opregion_headless_sku(struct intel_display *display);

void intel_opregion_debugfs_register(struct intel_display *display);

#else /* CONFIG_ACPI*/

static inline int intel_opregion_setup(struct intel_display *display)
{
	return 0;
}

static inline void intel_opregion_cleanup(struct intel_display *display)
{
}

static inline void intel_opregion_register(struct intel_display *display)
{
}

static inline void intel_opregion_unregister(struct intel_display *display)
{
}

static inline void intel_opregion_resume(struct intel_display *display)
{
}

static inline void intel_opregion_suspend(struct intel_display *display,
					  pci_power_t state)
{
}

static inline bool intel_opregion_asle_present(struct intel_display *display)
{
	return false;
}

static inline void intel_opregion_asle_intr(struct intel_display *display)
{
}

static inline int
intel_opregion_notify_encoder(struct intel_encoder *encoder, bool enable)
{
	return 0;
}

static inline int
intel_opregion_notify_adapter(struct intel_display *display, pci_power_t state)
{
	return 0;
}

static inline int intel_opregion_get_panel_type(struct intel_display *display)
{
	return -ENODEV;

Annotation

• Immediate include surface: `linux/pci.h`, `linux/types.h`.
• Detected declarations: `struct intel_connector`, `struct intel_display`, `struct intel_encoder`, `function intel_opregion_setup`, `function intel_opregion_cleanup`, `function intel_opregion_asle_intr`, `function intel_opregion_notify_adapter`, `function intel_opregion_get_panel_type`, `function intel_opregion_get_edid`, `function intel_opregion_vbt_present`.
• 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.