sound/soc/amd/acp/acp-rembrandt.c

Source file repositories/reference/linux-study-clean/sound/soc/amd/acp/acp-rembrandt.c

File Facts

System
Linux kernel
Corpus path
sound/soc/amd/acp/acp-rembrandt.c
Extension
.c
Size
6292 bytes
Lines
248
Domain
Driver Families
Bucket
sound/soc
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.

Dependency Surface

Detected Declarations

Annotated Snippet

if (substream && substream->runtime) {
			buf_in_frames = (substream->runtime->buffer_size);
			buf_size = frames_to_bytes(substream->runtime, buf_in_frames);
			config_pte_for_stream(chip, stream);
			config_acp_dma(chip, stream, buf_size);
			if (stream->dai_id)
				restore_acp_i2s_params(substream, chip, stream);
			else
				restore_acp_pdm_params(substream, chip);
		}
	}
	spin_unlock(&chip->acp_lock);
	return 0;
}

static const struct dev_pm_ops rmb_dma_pm_ops = {
	SYSTEM_SLEEP_PM_OPS(NULL, rmb_pcm_resume)
};

static struct platform_driver rembrandt_driver = {
	.probe = rembrandt_audio_probe,
	.remove = rembrandt_audio_remove,
	.driver = {
		.name = "acp_asoc_rembrandt",
		.pm = pm_ptr(&rmb_dma_pm_ops),
	},
};

module_platform_driver(rembrandt_driver);

MODULE_DESCRIPTION("AMD ACP Rembrandt Driver");
MODULE_IMPORT_NS("SND_SOC_ACP_COMMON");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_ALIAS("platform:" DRV_NAME);

Annotation

Implementation Notes