drivers/gpu/drm/amd/display/dc/dce/dmub_abm_lcd.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/display/dc/dce/dmub_abm_lcd.h

Extension

.h

Size

2262 bytes

Lines

55

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

• abm.h

Detected Declarations

• struct abm_save_restore

Annotated Snippet

#ifndef __DMUB_ABM_LCD_H__
#define __DMUB_ABM_LCD_H__

#include "abm.h"

struct abm_save_restore;

void dmub_abm_init(struct abm *abm, uint32_t backlight, uint32_t user_level);
bool dmub_abm_set_level(struct abm *abm, uint32_t level, uint8_t panel_mask);
unsigned int dmub_abm_get_current_backlight(struct abm *abm);
unsigned int dmub_abm_get_target_backlight(struct abm *abm);
void dmub_abm_init_config(struct abm *abm,
	const char *src,
	unsigned int bytes,
	unsigned int inst);

bool dmub_abm_set_pause(struct abm *abm, bool pause, unsigned int panel_inst, unsigned int stream_inst);
bool dmub_abm_save_restore(
		struct dc_context *dc,
		unsigned int panel_inst,
		struct abm_save_restore *pData);
bool dmub_abm_set_pipe(struct abm *abm, uint32_t otg_inst, uint32_t option, uint32_t panel_inst, uint32_t pwrseq_inst);
bool dmub_abm_set_backlight_level(struct abm *abm,
		unsigned int backlight_pwm_u16_16,
		unsigned int frame_ramp,
		unsigned int panel_inst);
bool dmub_abm_set_event(struct abm *abm, unsigned int scaling_enable, unsigned int scaling_strength_map,
		unsigned int panel_inst);
#endif

Annotation

• Immediate include surface: `abm.h`.
• Detected declarations: `struct abm_save_restore`.
• 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.