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ASoC: fsl_xcvr: Fix event generation in fsl_xcvr_mode_put()

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ALSA controls should return 1 if the value in the control changed but the
control put operation fsl_xcvr_mode_put() only returns 0 or a negative
error code, causing ALSA to not generate any change events.

Add a suitable check in the function before updating the mode variable.

Fixes: 2856448686 ("ASoC: fsl_xcvr: Add XCVR ASoC CPU DAI driver")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://patch.msgid.link/20260401094226.2900532-9-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Shengjiu Wang 2026-04-01 17:42:23 +08:00 committed by Mark Brown
parent 1b61c8103c
commit 64a496ba97
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GPG Key ID: 24D68B725D5487D0
1 changed files with 9 additions and 2 deletions
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11
sound/soc/fsl/fsl_xcvr.c
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@ -225,10 +225,17 @@ static int fsl_xcvr_mode_put(struct snd_kcontrol *kcontrol,
struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int *item = ucontrol->value.enumerated.item;
int val = snd_soc_enum_item_to_val(e, item[0]);
struct snd_soc_card *card = dai->component->card;
struct snd_soc_pcm_runtime *rtd;
int ret;
xcvr->mode = snd_soc_enum_item_to_val(e, item[0]);
if (val < FSL_XCVR_MODE_SPDIF || val > FSL_XCVR_MODE_EARC)
return -EINVAL;
ret = (xcvr->mode != val);
xcvr->mode = val;
fsl_xcvr_activate_ctl(dai, fsl_xcvr_arc_mode_kctl.name,
(xcvr->mode == FSL_XCVR_MODE_ARC));
@ -238,7 +245,7 @@ static int fsl_xcvr_mode_put(struct snd_kcontrol *kcontrol,
rtd = snd_soc_get_pcm_runtime(card, card->dai_link);
rtd->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream_count =
(xcvr->mode == FSL_XCVR_MODE_SPDIF ? 1 : 0);
return 0;
return ret;
}
static int fsl_xcvr_mode_get(struct snd_kcontrol *kcontrol,