Unverified Commit 3541aef1 authored by Marcin Rajwa's avatar Marcin Rajwa Committed by Mark Brown
Browse files

ASoC: SOF: add a power_down_notify method 



This patch adds a snd_sof_dsp_power_down_notify() method which aims to
prepare the DSP for the upcoming power down.
This new function make use of SOF_IPC_PM_CTX_SAVE message.

Signed-off-by: default avatarMarcin Rajwa <marcin.rajwa@linux.intel.com>
Signed-off-by: default avatarKai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: default avatarRanjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200515135958.17511-3-kai.vehmanen@linux.intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c26fde3b

sound/soc/sof/pm.c

+9 −0
Original line number Diff line number Diff line
@@ -256,6 +256,15 @@ suspend: 
	return ret;

}



int snd_sof_dsp_power_down_notify(struct snd_sof_dev *sdev)

{

	/* Notify DSP of upcoming power down */

	if (sof_ops(sdev)->remove)

		return sof_send_pm_ctx_ipc(sdev, SOF_IPC_PM_CTX_SAVE);



	return 0;

}



int snd_sof_runtime_suspend(struct device *dev)

{

	return sof_suspend(dev, true);

sound/soc/sof/sof-priv.h

+1 −0
Original line number Diff line number Diff line
@@ -453,6 +453,7 @@ int snd_sof_runtime_resume(struct device *dev); 
int snd_sof_runtime_idle(struct device *dev);

int snd_sof_resume(struct device *dev);

int snd_sof_suspend(struct device *dev);

int snd_sof_dsp_power_down_notify(struct snd_sof_dev *sdev);

int snd_sof_prepare(struct device *dev);

void snd_sof_complete(struct device *dev);

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