Unverified Commit 28023a78 authored by Syed Saba Kareem's avatar Syed Saba Kareem Committed by Mark Brown
Browse files

ASoC: amd: add acp6.2 pdm driver pm ops 



Add acp6.2 pdm driver pm ops.

Signed-off-by: default avatarSyed Saba Kareem <Syed.SabaKareem@amd.com>
Reviewed-by: default avatarVijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20220827165657.2343818-10-Syed.SabaKareem@amd.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 3a543d56

sound/soc/amd/ps/ps-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 "acp62.h"
@@ -377,13 +378,69 @@ static int acp62_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 acp62_pdm_audio_remove(struct platform_device *pdev)

{

	pm_runtime_disable(&pdev->dev);

	return 0;

}



static int __maybe_unused acp62_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);

		acp62_config_dma(rtd, SNDRV_PCM_STREAM_CAPTURE);

		acp62_init_pdm_ring_buffer(PDM_MEM_WINDOW_START, buffer_len,

					   period_bytes, adata->acp62_base);

	}

	acp62_enable_pdm_interrupts(adata->acp62_base);

	return 0;

}



static int __maybe_unused acp62_pdm_suspend(struct device *dev)

{

	struct pdm_dev_data *adata;



	adata = dev_get_drvdata(dev);

	acp62_disable_pdm_interrupts(adata->acp62_base);

	return 0;

}



static int __maybe_unused acp62_pdm_runtime_resume(struct device *dev)

{

	struct pdm_dev_data *adata;



	adata = dev_get_drvdata(dev);

	acp62_enable_pdm_interrupts(adata->acp62_base);

	return 0;

}



static const struct dev_pm_ops acp62_pdm_pm_ops = {

	SET_RUNTIME_PM_OPS(acp62_pdm_suspend, acp62_pdm_runtime_resume, NULL)

	SET_SYSTEM_SLEEP_PM_OPS(acp62_pdm_suspend, acp62_pdm_resume)

};



static struct platform_driver acp62_pdm_dma_driver = {

	.probe = acp62_pdm_audio_probe,

	.remove = acp62_pdm_audio_remove,

	.driver = {

		.name = "acp_ps_pdm_dma",

		.pm = &acp62_pdm_pm_ops,

	},

};