drivers/gpu/drm/i915/display/g4x_hdmi.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/display/g4x_hdmi.h

Extension

.h

Size

767 bytes

Lines

37

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.
• 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/types.h
• intel_display_reg_defs.h

Detected Declarations

• struct drm_atomic_commit
• struct drm_connector
• struct intel_display
• enum port
• function g4x_hdmi_init
• function g4x_hdmi_connector_atomic_check

Annotated Snippet

#ifndef _G4X_HDMI_H_
#define _G4X_HDMI_H_

#include <linux/types.h>

#include "intel_display_reg_defs.h"

enum port;
struct drm_atomic_commit;
struct drm_connector;
struct intel_display;

#ifdef I915
bool g4x_hdmi_init(struct intel_display *display,
		   intel_reg_t hdmi_reg, enum port port);
int g4x_hdmi_connector_atomic_check(struct drm_connector *connector,
				    struct drm_atomic_commit *state);
#else
static inline bool g4x_hdmi_init(struct intel_display *display,
				 intel_reg_t hdmi_reg, int port)
{
	return false;
}
static inline int g4x_hdmi_connector_atomic_check(struct drm_connector *connector,
						  struct drm_atomic_commit *state)
{
	return 0;
}
#endif

#endif

Annotation

• Immediate include surface: `linux/types.h`, `intel_display_reg_defs.h`.
• Detected declarations: `struct drm_atomic_commit`, `struct drm_connector`, `struct intel_display`, `enum port`, `function g4x_hdmi_init`, `function g4x_hdmi_connector_atomic_check`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source 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.