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ASoC: SOF: Intel: only support INFO_BATCH for legacy platforms

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The current position update is not precise enough for PulseAudio to
work reliably with the timer-based scheduling on Baytrail,
Cherrytrail, Broadwell.

Disable the NO_PERIOD_WAKEUP capability and use BATCH to signal that
the position is only reliable and updated during period_elapsed
events.

This will be reverted when the firmware provides a more accurate
position for those platforms.

Reviewed-by: Jaska Uimonen <jaska.uimonen@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191024210318.30068-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2019-10-24 16:03:18 -05:00 committed by Mark Brown
parent 27e322fabd
commit 4c02a7bd43
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
2 changed files with 4 additions and 4 deletions
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2
sound/soc/sof/intel/bdw.c
View file

@ -598,7 +598,7 @@ const struct snd_sof_dsp_ops sof_bdw_ops = {
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
SNDRV_PCM_INFO_BATCH,
};
EXPORT_SYMBOL(sof_bdw_ops);

6
sound/soc/sof/intel/byt.c
View file

@ -538,7 +538,7 @@ const struct snd_sof_dsp_ops sof_tng_ops = {
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
SNDRV_PCM_INFO_BATCH,
};
EXPORT_SYMBOL(sof_tng_ops);
@ -706,7 +706,7 @@ const struct snd_sof_dsp_ops sof_byt_ops = {
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
SNDRV_PCM_INFO_BATCH,
};
EXPORT_SYMBOL(sof_byt_ops);
@ -773,7 +773,7 @@ const struct snd_sof_dsp_ops sof_cht_ops = {
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
SNDRV_PCM_INFO_BATCH,
};
EXPORT_SYMBOL(sof_cht_ops);