From aa9e3fa4992d83acb7311fc86d11d0d53e7ffb8e Mon Sep 17 00:00:00 2001 From: Cezary Rojewski Date: Mon, 16 Nov 2020 14:33:28 +0100 Subject: [PATCH 1/2] ASoC: Intel: catpt: Skip position update for unprepared streams Playing with very low period sizes may lead to timeouts when awaiting RESET_STREAM reply for offload streams. This is caused by NOTIFY_POSITION appearing in the middle of trigger(stop). Stream is unprepared during trigger(stop) where PAUSE_STREAM IPC gets invoked. However, all data that is already mixed in DSP firmware's mixer stream will still be played regardless of the pause. For offload streams, this means possibility for another NOTIFY_POSITION to process. Keep these notifications in check by only handling them when stream is in prepared state. Fixes: a126750fc865 ("ASoC: Intel: catpt: PCM operations") Signed-off-by: Cezary Rojewski Link: https://lore.kernel.org/r/20201116133332.8530-2-cezary.rojewski@intel.com Signed-off-by: Mark Brown --- sound/soc/intel/catpt/pcm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/intel/catpt/pcm.c b/sound/soc/intel/catpt/pcm.c index f78018c857b8..174a786cd776 100644 --- a/sound/soc/intel/catpt/pcm.c +++ b/sound/soc/intel/catpt/pcm.c @@ -534,6 +534,8 @@ void catpt_stream_update_position(struct catpt_dev *cdev, dsppos = bytes_to_frames(r, pos->stream_position); + if (!stream->prepared) + goto exit; /* only offload is set_write_pos driven */ if (stream->template->type != CATPT_STRM_TYPE_RENDER) goto exit; From 1072460a1aabacf6ececda98acd3b5ecaad23fd2 Mon Sep 17 00:00:00 2001 From: Cezary Rojewski Date: Mon, 16 Nov 2020 14:33:29 +0100 Subject: [PATCH 2/2] ASoC: Intel: catpt: Correct clock selection for dai trigger During stream start DSP firmware requires LPCS disabled as that moment in time is resource heavy. Currently high-clock is selected on start of second stream onwards while low-clock is re-selected before stream actually leaves RESUME state i.e. PAUSE_STREAM call. Fix this by always updating clock before RESUME_STREAM and directly after PAUSE_STREAM. Fixes: a126750fc865 ("ASoC: Intel: catpt: PCM operations") Signed-off-by: Cezary Rojewski Link: https://lore.kernel.org/r/20201116133332.8530-3-cezary.rojewski@intel.com Signed-off-by: Mark Brown --- sound/soc/intel/catpt/pcm.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/sound/soc/intel/catpt/pcm.c b/sound/soc/intel/catpt/pcm.c index 174a786cd776..2061978b6cb9 100644 --- a/sound/soc/intel/catpt/pcm.c +++ b/sound/soc/intel/catpt/pcm.c @@ -458,10 +458,6 @@ static int catpt_dai_prepare(struct snd_pcm_substream *substream, if (ret) return CATPT_IPC_ERROR(ret); - ret = catpt_dsp_update_lpclock(cdev); - if (ret) - return ret; - ret = catpt_dai_apply_usettings(dai, stream); if (ret) return ret; @@ -500,6 +496,7 @@ static int catpt_dai_trigger(struct snd_pcm_substream *substream, int cmd, case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: resume_stream: + catpt_dsp_update_lpclock(cdev); ret = catpt_ipc_resume_stream(cdev, stream->info.stream_hw_id); if (ret) return CATPT_IPC_ERROR(ret); @@ -507,11 +504,11 @@ static int catpt_dai_trigger(struct snd_pcm_substream *substream, int cmd, case SNDRV_PCM_TRIGGER_STOP: stream->prepared = false; - catpt_dsp_update_lpclock(cdev); fallthrough; case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: ret = catpt_ipc_pause_stream(cdev, stream->info.stream_hw_id); + catpt_dsp_update_lpclock(cdev); if (ret) return CATPT_IPC_ERROR(ret); break;