[PATCH AUTOSEL 5.4 322/350] ASoC: soc-pcm: check symmetry before hw_params

Sasha Levin
2019-12-10T21:13:35Z

From: Shengjiu Wang <shengjiu.wang@nxp.com>

[ Upstream commit 5cca59516de5df9de6bdecb328dd55fb5bcccb41 ]

This reverts commit 957ce0c6b8a1f (ASoC: soc-pcm: check symmetry after
hw_params).

That commit cause soc_pcm_params_symmetry can't take effect.
cpu_dai->rate, cpu_dai->channels and cpu_dai->sample_bits
are updated in the middle of soc_pcm_hw_params, so move
soc_pcm_params_symmetry to the end of soc_pcm_hw_params is
not a good solution, for judgement of symmetry in the function
is always true.

FIXME:
According to the comments of that commit, I think the case
described in the commit should disable symmetric_rates
in Back-End, rather than changing the position of
soc_pcm_params_symmetry.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1573555602-5403-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/soc-pcm.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index cdce96a3051bf..a6e96cf1d8ff9 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -877,6 +877,11 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
int i, ret = 0;

mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
+
+ ret = soc_pcm_params_symmetry(substream, params);
+ if (ret)
+ goto out;
+
if (rtd->dai_link->ops->hw_params) {
ret = rtd->dai_link->ops->hw_params(substream, params);
if (ret < 0) {
@@ -958,9 +963,6 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
}
component = NULL;

- ret = soc_pcm_params_symmetry(substream, params);
- if (ret)
- goto component_err;
out:
mutex_unlock(&rtd->card->pcm_mutex);
return ret;
--
2.20.1