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ASoC: SOF: Intel: hda: reset stream before coupling host and link DMA's

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The recommended programming sequence for HD-Audio DMA is to reset the
stream before coupling the link and host DMA's.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20211125101520.291581-4-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ranjani Sridharan 2021-11-25 12:15:13 +02:00 committed by Mark Brown
parent 2b1acedccf
commit 4794601a52
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1 changed files with 5 additions and 0 deletions
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5
sound/soc/sof/intel/hda-stream.c
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@ -659,6 +659,11 @@ int hda_dsp_stream_hw_free(struct snd_sof_dev *sdev,
hstream);
struct hdac_bus *bus = sof_to_bus(sdev);
u32 mask = 0x1 << stream->index;
int ret;
ret = hda_dsp_stream_reset(sdev, stream);
if (ret < 0)
return ret;
spin_lock_irq(&bus->reg_lock);
/* couple host and link DMA if link DMA channel is idle */