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ASoC: amd: acp-legacy-mach: skip dai link for amp reference stream

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Amps can provide reference stream to hosts DSP which
can be used for input audio proocessing. But legacy AMD soc
doesn't support such a feature. So skip adding the dai link
for the same.

Signed-off-by: Niranjan H Y <niranjan.hy@ti.com>
Suggested-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20261006042315.1038-1-niranjan.hy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Niranjan H Y 2026-10-06 09:53:15 +05:30 committed by Mark Brown
parent 0504e71cc7
commit 9867312e9f
1 changed files with 32 additions and 0 deletions
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32
sound/soc/amd/acp/acp-sdw-legacy-mach.c
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@ -265,6 +265,14 @@ static int create_sdw_dailink(struct snd_soc_card *card,
if (!soc_end->dai_info->direction[stream])
continue;
/*
* skip adding reference stream for amp type
* as legacy AMD doesn't use the DSP.
*/
if (soc_end->dai_info->dai_type == SOC_SDW_DAI_TYPE_AMP &&
stream == SNDRV_PCM_STREAM_CAPTURE)
continue;
int link_num = ffs(soc_end->link_mask) - 1;
cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
@ -448,6 +456,30 @@ static int soc_card_dai_links_create(struct snd_soc_card *card)
sdw_be_num = ret;
/*
* Legacy AMD has no DSP, so AMP reference capture streams are not
* supported. Subtract them from num_devs so create_sdw_dailink()
* uses the correct count directly, and decrement sdw_be_num when
* all capture endpoints on a DAI are AMP type.
*/
for (int i = 0; i < num_ends; i++) {
struct asoc_sdw_dailink *d = &soc_dais[i];
struct asoc_sdw_endpoint *e;
if (!d->initialised)
break;
if (!d->num_devs[SNDRV_PCM_STREAM_CAPTURE])
continue;
list_for_each_entry(e, &d->endpoints, list) {
if (e->dai_info->direction[SNDRV_PCM_STREAM_CAPTURE] &&
e->dai_info->dai_type == SOC_SDW_DAI_TYPE_AMP)
d->num_devs[SNDRV_PCM_STREAM_CAPTURE]--;
}
if (!d->num_devs[SNDRV_PCM_STREAM_CAPTURE])
sdw_be_num--;
}
/* enable dmic */
if (soc_sdw_quirk & ASOC_SDW_ACP_DMIC)
dmic_num = 1;