drivers/gpu/drm/msm/dp/dp_aux.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/msm/dp/dp_aux.h

Extension

.h

Size

1224 bytes

Lines

34

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• drm/display/drm_dp_helper.h

Detected Declarations

• struct phy

Annotated Snippet

#ifndef _DP_AUX_H_
#define _DP_AUX_H_

#include <drm/display/drm_dp_helper.h>

int msm_dp_aux_register(struct drm_dp_aux *msm_dp_aux);
void msm_dp_aux_unregister(struct drm_dp_aux *msm_dp_aux);
irqreturn_t msm_dp_aux_isr(struct drm_dp_aux *msm_dp_aux, u32 isr);
void msm_dp_aux_enable_xfers(struct drm_dp_aux *msm_dp_aux, bool enabled);
void msm_dp_aux_init(struct drm_dp_aux *msm_dp_aux);
void msm_dp_aux_deinit(struct drm_dp_aux *msm_dp_aux);
void msm_dp_aux_reconfig(struct drm_dp_aux *msm_dp_aux);

void msm_dp_aux_hpd_enable(struct drm_dp_aux *msm_dp_aux);
void msm_dp_aux_hpd_disable(struct drm_dp_aux *msm_dp_aux);
void msm_dp_aux_hpd_intr_enable(struct drm_dp_aux *msm_dp_aux);
void msm_dp_aux_hpd_intr_disable(struct drm_dp_aux *msm_dp_aux);
u32 msm_dp_aux_get_hpd_intr_status(struct drm_dp_aux *msm_dp_aux);
u32 msm_dp_aux_is_link_connected(struct drm_dp_aux *msm_dp_aux);

struct phy;
struct drm_dp_aux *msm_dp_aux_get(struct device *dev,
			      struct phy *phy,
			      bool is_edp,
			      void __iomem *aux_base);
void msm_dp_aux_put(struct drm_dp_aux *aux);

#endif /*__DP_AUX_H_*/

Annotation

• Immediate include surface: `drm/display/drm_dp_helper.h`.
• Detected declarations: `struct phy`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.