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ASoC: SOF: Intel: hda-sdw-bpt: support simultaneous audio and BPT streams

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Currently the SoundWire BPT stream uses the paired link DMA but not
reserve it. It works without any issue because we assume the SoundWire
BPT will not run with audio streams simultaneously.
To support simultaneous audio and BPT streams, we need to use the
hda_dma_prepare/cleanup helpers to reserve the pair link host DMA.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Link: https://patch.msgid.link/20260203114027.3742558-4-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Bard Liao 2026-02-03 19:40:27 +08:00 committed by Mark Brown
parent 8834ae896b
commit 330d1deb41
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GPG Key ID: 24D68B725D5487D0
1 changed files with 3 additions and 2 deletions
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5
sound/soc/sof/intel/hda-sdw-bpt.c
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@ -118,7 +118,8 @@ static int hda_sdw_bpt_dma_prepare(struct device *dev, struct hdac_ext_stream **
dev_dbg(dev, "direction %d format_val %#x\n", direction, format);
bpt_stream = hda_cl_prepare(dev, format, bpt_num_bytes, dmab_bdl, false, direction, false);
bpt_stream = hda_data_stream_prepare(dev, format, bpt_num_bytes, dmab_bdl,
false, direction, false, true);
if (IS_ERR(bpt_stream)) {
dev_err(sdev->dev, "%s: SDW BPT DMA prepare failed: dir %d\n",
__func__, direction);
@ -162,7 +163,7 @@ static int hda_sdw_bpt_dma_deprepare(struct device *dev, struct hdac_ext_stream
u32 mask;
int ret;
ret = hda_cl_cleanup(sdev->dev, dmab_bdl, false, sdw_bpt_stream);
ret = hda_data_stream_cleanup(sdev->dev, dmab_bdl, false, sdw_bpt_stream, true);
if (ret < 0) {
dev_err(sdev->dev, "%s: SDW BPT DMA cleanup failed\n",
__func__);