From e1711b1f9dfb712aa72ea25e03e0a3f6ef16c4fb Mon Sep 17 00:00:00 2001 From: Rander Wang Date: Mon, 1 Feb 2021 11:23:45 +0200 Subject: [PATCH] ASoC: SOF: add be_hw_params_fixup() for ALH Fixup BE DAI links channel count to match topology settings. Normally the channel count of BE is equal to FE's so we don't have any issue. For some cases like DSM with 2-channel FE and 4-channel BE the mismatch of BE and topology will result in audio issues. Signed-off-by: Rander Wang Reviewed-by: Keyon Jie Signed-off-by: Kai Vehmanen Link: https://lore.kernel.org/r/20210201092345.1214232-1-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/sof/pcm.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/sound/soc/sof/pcm.c b/sound/soc/sof/pcm.c index 0dc39fbcd81d..61c3fe17342d 100644 --- a/sound/soc/sof/pcm.c +++ b/sound/soc/sof/pcm.c @@ -707,7 +707,12 @@ int sof_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_pa } break; case SOF_DAI_INTEL_ALH: - /* do nothing for ALH dai_link */ + /* + * Dai could run with different channel count compared with + * front end, so get dai channel count from topology + */ + channels->min = dai->dai_config->alh.channels; + channels->max = dai->dai_config->alh.channels; break; case SOF_DAI_IMX_ESAI: rate->min = dai->dai_config->esai.fsync_rate; -- 2.39.5