sound/soc/amd/ps/pci-ps.c

File Facts

System

Linux kernel

Corpus path

sound/soc/amd/ps/pci-ps.c

Extension

.c

Size

20828 bytes

Lines

757

Domain

Driver Families

Bucket

sound/soc

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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 an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/pci.h
• linux/bitops.h
• linux/module.h
• linux/io.h
• linux/delay.h
• linux/platform_device.h
• linux/acpi.h
• linux/interrupt.h
• sound/pcm_params.h
• linux/pm_runtime.h
• linux/iopoll.h
• linux/soundwire/sdw_amd.h
• ../mach-config.h
• acp63.h

Detected Declarations

• function handle_acp70_sdw_wake_event
• function check_and_handle_acp70_sdw_wake_irq
• function check_and_handle_sdw_dma_irq
• function acp63_irq_thread
• function acp63_irq_handler
• function acp_scan_sdw_devices
• function amd_sdw_probe
• function amd_sdw_exit
• function acp_scan_sdw_devices
• function amd_sdw_probe
• function amd_sdw_exit
• function acp63_machine_register
• function get_acp63_device_config
• function acp63_fill_platform_dev_info
• function create_acp63_platform_devs
• function acp_hw_init_ops
• function snd_acp63_probe
• function snd_acp_suspend
• function snd_acp_runtime_resume
• function snd_acp_resume
• function snd_acp63_remove

Annotated Snippet

static struct pci_driver ps_acp63_driver  = {
	.name = KBUILD_MODNAME,
	.id_table = snd_acp63_ids,
	.probe = snd_acp63_probe,
	.remove = snd_acp63_remove,
	.driver = {
		.pm = pm_ptr(&acp63_pm_ops),
	}
};

module_pci_driver(ps_acp63_driver);

MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
MODULE_AUTHOR("Syed.SabaKareem@amd.com");
MODULE_DESCRIPTION("AMD common ACP PCI driver for ACP6.3, ACP7.0 & ACP7.1 platforms");
MODULE_IMPORT_NS("SOUNDWIRE_AMD_INIT");
MODULE_IMPORT_NS("SND_AMD_SOUNDWIRE_ACPI");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/pci.h`, `linux/bitops.h`, `linux/module.h`, `linux/io.h`, `linux/delay.h`, `linux/platform_device.h`, `linux/acpi.h`, `linux/interrupt.h`.
• Detected declarations: `function handle_acp70_sdw_wake_event`, `function check_and_handle_acp70_sdw_wake_irq`, `function check_and_handle_sdw_dma_irq`, `function acp63_irq_thread`, `function acp63_irq_handler`, `function acp_scan_sdw_devices`, `function amd_sdw_probe`, `function amd_sdw_exit`, `function acp_scan_sdw_devices`, `function amd_sdw_probe`.
• Atlas domain: Driver Families / sound/soc.
• Implementation status: pattern 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.