Unverified Commit 4c2e711a authored by Vijendar Mukunda's avatar Vijendar Mukunda Committed by Mark Brown
Browse files

ASoC: amd: add acp6x pdm driver pm ops 



Add acp6x pdm driver pm ops.

Signed-off-by: default avatarVijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20211018112044.1705805-10-Vijendar.Mukunda@amd.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c8212df7

sound/soc/amd/yc/acp6x-pdm-dma.c

+57 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 
#include <sound/pcm_params.h>

#include <sound/soc.h>

#include <sound/soc-dai.h>

#include <linux/pm_runtime.h>



#include "acp6x.h"
@@ -373,13 +374,69 @@ static int acp6x_pdm_audio_probe(struct platform_device *pdev) 


		return -ENODEV;

	}

	pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);

	pm_runtime_use_autosuspend(&pdev->dev);

	pm_runtime_enable(&pdev->dev);

	pm_runtime_allow(&pdev->dev);

	return 0;

}



static int acp6x_pdm_audio_remove(struct platform_device *pdev)

{

	pm_runtime_disable(&pdev->dev);

	return 0;

}



static int __maybe_unused acp6x_pdm_resume(struct device *dev)

{

	struct pdm_dev_data *adata;

	struct snd_pcm_runtime *runtime;

	struct pdm_stream_instance *rtd;

	u32 period_bytes, buffer_len;



	adata = dev_get_drvdata(dev);

	if (adata->capture_stream && adata->capture_stream->runtime) {

		runtime = adata->capture_stream->runtime;

		rtd = runtime->private_data;

		period_bytes = frames_to_bytes(runtime, runtime->period_size);

		buffer_len = frames_to_bytes(runtime, runtime->buffer_size);

		acp6x_config_dma(rtd, SNDRV_PCM_STREAM_CAPTURE);

		acp6x_init_pdm_ring_buffer(PDM_MEM_WINDOW_START, buffer_len,

					   period_bytes, adata->acp6x_base);

	}

	acp6x_enable_pdm_interrupts(adata->acp6x_base);

	return 0;

}



static int __maybe_unused acp6x_pdm_suspend(struct device *dev)

{

	struct pdm_dev_data *adata;



	adata = dev_get_drvdata(dev);

	acp6x_disable_pdm_interrupts(adata->acp6x_base);

	return 0;

}



static int __maybe_unused acp6x_pdm_runtime_resume(struct device *dev)

{

	struct pdm_dev_data *adata;



	adata = dev_get_drvdata(dev);

	acp6x_enable_pdm_interrupts(adata->acp6x_base);

	return 0;

}



static const struct dev_pm_ops acp6x_pdm_pm_ops = {

	SET_RUNTIME_PM_OPS(acp6x_pdm_suspend, acp6x_pdm_runtime_resume, NULL)

	SET_SYSTEM_SLEEP_PM_OPS(acp6x_pdm_suspend, acp6x_pdm_resume)

};



static struct platform_driver acp6x_pdm_dma_driver = {

	.probe = acp6x_pdm_audio_probe,

	.remove = acp6x_pdm_audio_remove,

	.driver = {

		.name = "acp_yc_pdm_dma",

		.pm = &acp6x_pdm_pm_ops,

	},

};