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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

1431 bytes

Lines

39

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_digital_port
• struct intel_display
• struct intel_encoder
• enum port

Annotated Snippet

#ifndef __INTEL_HOTPLUG_H__
#define __INTEL_HOTPLUG_H__

#include <linux/types.h>

enum port;
struct intel_connector;
struct intel_digital_port;
struct intel_display;
struct intel_encoder;

void intel_hpd_poll_enable(struct intel_display *display);
void intel_hpd_poll_disable(struct intel_display *display);
void intel_hpd_poll_fini(struct intel_display *display);
enum intel_hotplug_state intel_encoder_hotplug(struct intel_encoder *encoder,
					       struct intel_connector *connector);
void intel_hpd_irq_handler(struct intel_display *display,
			   u32 pin_mask, u32 long_mask);
void intel_hpd_trigger_irq(struct intel_digital_port *dig_port);
void intel_hpd_init(struct intel_display *display);
void intel_hpd_init_early(struct intel_display *display);
void intel_hpd_cancel_work(struct intel_display *display);
enum hpd_pin intel_hpd_pin_default(enum port port);
void intel_hpd_block(struct intel_encoder *encoder);
void intel_hpd_unblock(struct intel_encoder *encoder);
void intel_hpd_clear_and_unblock(struct intel_encoder *encoder);
void intel_hpd_debugfs_register(struct intel_display *display);

void intel_hpd_enable_detection_work(struct intel_display *display);
void intel_hpd_disable_detection_work(struct intel_display *display);
bool intel_hpd_schedule_detection(struct intel_display *display);

#endif /* __INTEL_HOTPLUG_H__ */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct intel_connector`, `struct intel_digital_port`, `struct intel_display`, `struct intel_encoder`, `enum port`.
• 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.