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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

1077 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

Detected Declarations

• struct intel_crtc_state
• struct intel_display
• function lpt_program_iclkip
• function lpt_iclkip
• function intel_init_pch_refclk

Annotated Snippet

#ifndef _INTEL_PCH_REFCLK_H_
#define _INTEL_PCH_REFCLK_H_

#include <linux/types.h>

struct intel_crtc_state;
struct intel_display;

#ifdef I915
void lpt_program_iclkip(const struct intel_crtc_state *crtc_state);
void lpt_disable_iclkip(struct intel_display *display);
int lpt_get_iclkip(struct intel_display *display);
int lpt_iclkip(const struct intel_crtc_state *crtc_state);

void intel_init_pch_refclk(struct intel_display *display);
void lpt_disable_clkout_dp(struct intel_display *display);
#else
static inline void lpt_program_iclkip(const struct intel_crtc_state *crtc_state)
{
}
static inline void lpt_disable_iclkip(struct intel_display *display)
{
}
static inline int lpt_get_iclkip(struct intel_display *display)
{
	return 0;
}
static inline int lpt_iclkip(const struct intel_crtc_state *crtc_state)
{
	return 0;
}
static inline void intel_init_pch_refclk(struct intel_display *display)
{
}
static inline void lpt_disable_clkout_dp(struct intel_display *display)
{
}
#endif

#endif

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct intel_crtc_state`, `struct intel_display`, `function lpt_program_iclkip`, `function lpt_iclkip`, `function intel_init_pch_refclk`.
• 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.