This is a note to let you know that I've just added the patch titled
ASoC: SOF: pcm: Restrict DSP D0i3 during S0ix to IPC3
to the 6.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-sof-pcm-restrict-dsp-d0i3-during-s0ix-to-ipc3.patch
and it can be found in the queue-6.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4819fce3a528a09ee0ec9b8f194e187161356b97
Author: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Date: Mon Apr 8 14:41:46 2024 -0500
ASoC: SOF: pcm: Restrict DSP D0i3 during S0ix to IPC3
[ Upstream commit 90a2353080eedec855d63f6aadfda14104ee9b06 ]
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@xxxxxxxxx>
Reviewed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Link: https://msgid.link/r/20240408194147.28919-3-pierre-louis.bossart@xxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/soc/sof/ipc3-pcm.c b/sound/soc/sof/ipc3-pcm.c
index 330f04bcd75d2..a7cf52fd76455 100644
--- a/sound/soc/sof/ipc3-pcm.c
+++ b/sound/soc/sof/ipc3-pcm.c
@@ -409,4 +409,5 @@ 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,
};
diff --git a/sound/soc/sof/pcm.c b/sound/soc/sof/pcm.c
index f03cee94bce62..8804e00e7251b 100644
--- a/sound/soc/sof/pcm.c
+++ b/sound/soc/sof/pcm.c
@@ -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;
}
diff --git a/sound/soc/sof/sof-audio.h b/sound/soc/sof/sof-audio.h
index 85b26e3fefa8f..05e2a899d746c 100644
--- a/sound/soc/sof/sof-audio.h
+++ b/sound/soc/sof/sof-audio.h
@@ -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;
};
/**
