drivers/gpu/drm/i915/display/g4x_dp.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/display/g4x_dp.h

Extension

.h

Size

978 bytes

Lines

46

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/types.h
• intel_display_reg_defs.h

Detected Declarations

• struct intel_crtc_state
• struct intel_display
• struct intel_dp
• struct intel_encoder
• enum pipe
• enum port
• function g4x_dp_port_enabled
• function g4x_dp_init

Annotated Snippet

#ifndef _G4X_DP_H_
#define _G4X_DP_H_

#include <linux/types.h>

#include "intel_display_reg_defs.h"

enum pipe;
enum port;
struct intel_crtc_state;
struct intel_display;
struct intel_dp;
struct intel_encoder;

#ifdef I915
const struct dpll *vlv_get_dpll(struct intel_display *display);
bool g4x_dp_port_enabled(struct intel_display *display,
			 intel_reg_t dp_reg, enum port port,
			 enum pipe *pipe);
bool g4x_dp_init(struct intel_display *display,
		 intel_reg_t output_reg, enum port port);
#else
static inline const struct dpll *vlv_get_dpll(struct intel_display *display)
{
	return NULL;
}
static inline bool g4x_dp_port_enabled(struct intel_display *display,
				       intel_reg_t dp_reg, int port,
				       enum pipe *pipe)
{
	return false;
}
static inline bool g4x_dp_init(struct intel_display *display,
			       intel_reg_t output_reg, int port)
{
	return false;
}
#endif

#endif

Annotation

• Immediate include surface: `linux/types.h`, `intel_display_reg_defs.h`.
• Detected declarations: `struct intel_crtc_state`, `struct intel_display`, `struct intel_dp`, `struct intel_encoder`, `enum pipe`, `enum port`, `function g4x_dp_port_enabled`, `function g4x_dp_init`.
• 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.