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ASoC: SOF: pcm: Restrict DSP D0i3 during S0ix to IPC3 

Introduce a new field in struct sof_ipc_pcm_ops that can be used to
restrict DSP D0i3 during S0ix suspend to IPC3. With IPC4, all streams
must be stopped before S0ix suspend.

Reviewed-by: Uday M Bhat <uday.m.bhat@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://msgid.link/r/20240408194147.28919-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ranjani Sridharan 2024-04-08 14:41:46 -05:00 committed by Mark Brown
parent 305539a25a
commit 90a2353080
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
3 changed files with 9 additions and 7 deletions
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1
sound/soc/sof/ipc3-pcm.c
View File

@ -434,4 +434,5 @@ const struct sof_ipc_pcm_ops ipc3_pcm_ops = {
.trigger = sof_ipc3_pcm_trigger,
.dai_link_fixup = sof_ipc3_pcm_dai_link_fixup,
.reset_hw_params_during_stop = true,
.d0i3_supported_in_s0ix = true,
};

13
sound/soc/sof/pcm.c
View File

@ -325,14 +325,13 @@ static int sof_pcm_trigger(struct snd_soc_component *component,
ipc_first = true;
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
if (sdev->system_suspend_target == SOF_SUSPEND_S0IX &&
/*
* If DSP D0I3 is allowed during S0iX, set the suspend_ignored flag for
* D0I3-compatible streams to keep the firmware pipeline running
*/
if (pcm_ops && pcm_ops->d0i3_supported_in_s0ix &&
sdev->system_suspend_target == SOF_SUSPEND_S0IX &&
spcm->stream[substream->stream].d0i3_compatible) {
/*
* trap the event, not sending trigger stop to
* prevent the FW pipelines from being stopped,
* and mark the flag to ignore the upcoming DAPM
* PM events.
*/
spcm->stream[substream->stream].suspend_ignored = true;
return 0;
}

2
sound/soc/sof/sof-audio.h
View File

@ -116,6 +116,7 @@ struct snd_sof_dai_config_data {
* triggers. The FW keeps the host DMA running in this case and
* therefore the host must do the same and should stop the DMA during
* hw_free.
* @d0i3_supported_in_s0ix: Allow DSP D0I3 during S0iX
*/
struct sof_ipc_pcm_ops {
int (*hw_params)(struct snd_soc_component *component, struct snd_pcm_substream *substream,
@ -135,6 +136,7 @@ struct sof_ipc_pcm_ops {
bool reset_hw_params_during_stop;
bool ipc_first_on_start;
bool platform_stop_during_hw_free;
bool d0i3_supported_in_s0ix;
};
/**