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ASoC: SOF: ipc4-topology: Prefer 32-bit DMIC blobs for 8-bit formats as well

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With the introduction of 8-bit formats the DMIC blob lookup also needs to
be modified to prefer the 32-bit blob when 8-bit format is used on FE.

At the same time we also need to make sure that in case 8-bit format is
used, but only 16-bit blob is available for DMIC then we will not try to
look for 8-bit blob (which is invalid) as fallback, but for a 16-bit one.

Fixes: c04c2e8296 ("ASoC: SOF: ipc4-topology: Add support for 8-bit formats")
Cc: stable@vger.kernel.org
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://patch.msgid.link/20251215120648.4827-2-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Peter Ujfalusi
2025-12-15 14:06:47 +02:00
committed by Mark Brown
parent 8f0b4cce44
commit 26e4550649
1 changed files with 14 additions and 8 deletions
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22
sound/soc/sof/ipc4-topology.c
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@@ -1752,11 +1752,9 @@ snd_sof_get_nhlt_endpoint_data(struct snd_sof_dev *sdev, struct snd_sof_dai *dai
channel_count = params_channels(params);
sample_rate = params_rate(params);
bit_depth = params_width(params);
/*
* Look for 32-bit blob first instead of 16-bit if copier
* supports multiple formats
*/
if (bit_depth == 16 && !single_bitdepth) {
/* Prefer 32-bit blob if copier supports multiple formats */
if (bit_depth <= 16 && !single_bitdepth) {
dev_dbg(sdev->dev, "Looking for 32-bit blob first for DMIC\n");
format_change = true;
bit_depth = 32;
@@ -1799,10 +1797,18 @@ snd_sof_get_nhlt_endpoint_data(struct snd_sof_dev *sdev, struct snd_sof_dai *dai
if (format_change) {
/*
* The 32-bit blob was not found in NHLT table, try to
* look for one based on the params
* look for 16-bit for DMIC or based on the params for
* SSP
*/
bit_depth = params_width(params);
format_change = false;
if (linktype == SOF_DAI_INTEL_DMIC) {
bit_depth = 16;
if (params_width(params) == 16)
format_change = false;
} else {
bit_depth = params_width(params);
format_change = false;
}
get_new_blob = true;
} else if (linktype == SOF_DAI_INTEL_DMIC && !single_bitdepth) {
/*