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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

2514 bytes

Lines

68

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_connector
• struct intel_crtc_state
• struct intel_display
• struct intel_dp
• struct intel_encoder
• struct ref_tracker
• enum pipe

Annotated Snippet

#ifndef __INTEL_PPS_H__
#define __INTEL_PPS_H__

#include <linux/types.h>

enum pipe;
struct intel_connector;
struct intel_crtc_state;
struct intel_display;
struct intel_dp;
struct intel_encoder;
struct ref_tracker;

struct ref_tracker *intel_pps_lock(struct intel_dp *intel_dp);
struct ref_tracker *intel_pps_unlock(struct intel_dp *intel_dp, struct ref_tracker *wakeref);

#define __with_intel_pps_lock(dp, wf) \
	for (struct ref_tracker *(wf) = intel_pps_lock(dp); (wf); (wf) = intel_pps_unlock((dp), (wf)))

#define with_intel_pps_lock(dp) \
	__with_intel_pps_lock((dp), __UNIQUE_ID(wakeref))

void intel_pps_backlight_on(struct intel_dp *intel_dp);
void intel_pps_backlight_off(struct intel_dp *intel_dp);
void intel_pps_backlight_power(struct intel_connector *connector, bool enable);

bool intel_pps_vdd_on_unlocked(struct intel_dp *intel_dp);
void intel_pps_vdd_off_unlocked(struct intel_dp *intel_dp, bool sync);
void intel_pps_on_unlocked(struct intel_dp *intel_dp);
void intel_pps_off_unlocked(struct intel_dp *intel_dp);
void intel_pps_check_power_unlocked(struct intel_dp *intel_dp);

void intel_pps_vdd_on(struct intel_dp *intel_dp);
void intel_pps_vdd_off(struct intel_dp *intel_dp);
void intel_pps_on(struct intel_dp *intel_dp);
void intel_pps_off(struct intel_dp *intel_dp);
void intel_pps_vdd_off_sync(struct intel_dp *intel_dp);
bool intel_pps_have_panel_power_or_vdd(struct intel_dp *intel_dp);
void intel_pps_wait_power_cycle(struct intel_dp *intel_dp);

bool intel_pps_init(struct intel_dp *intel_dp);
void intel_pps_init_late(struct intel_dp *intel_dp);
void intel_pps_encoder_reset(struct intel_dp *intel_dp);

void vlv_pps_pipe_init(struct intel_dp *intel_dp);
void vlv_pps_pipe_reset(struct intel_dp *intel_dp);
enum pipe vlv_pps_backlight_initial_pipe(struct intel_dp *intel_dp);
void vlv_pps_port_enable_unlocked(struct intel_encoder *encoder,
				  const struct intel_crtc_state *crtc_state);
void vlv_pps_port_disable(struct intel_encoder *encoder,
			  const struct intel_crtc_state *crtc_state);
void vlv_pps_reset_all(struct intel_display *display);
void bxt_pps_reset_all(struct intel_display *display);

void intel_pps_unlock_regs_wa(struct intel_display *display);
void intel_pps_setup(struct intel_display *display);

void intel_pps_connector_debugfs_add(struct intel_connector *connector);

void assert_pps_unlocked(struct intel_display *display, enum pipe pipe);

#endif /* __INTEL_PPS_H__ */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct intel_connector`, `struct intel_crtc_state`, `struct intel_display`, `struct intel_dp`, `struct intel_encoder`, `struct ref_tracker`, `enum pipe`.
• 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.