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[3/4] ASoC: tegra: Fix kcontrol put callback in DMIC

Message ID 1635915897-32313-4-git-send-email-spujar@nvidia.com (mailing list archive)
State Superseded
Headers show
Series Fix kcontrol put callback in Tegra drivers | expand

Commit Message

Sameer Pujar Nov. 3, 2021, 5:04 a.m. UTC 
The kcontrol put callback is expected to return 1 when there is change
in HW or when the update is acknowledged by driver. This would ensure
that change notifications are sent to subscribed applications. Update
the DMIC driver accordingly.

Fixes: 8c8ff982e9e2 ("ASoC: tegra: Add Tegra210 based DMIC driver")
Suggested-by: Jaroslav Kysela <perex@perex.cz>
Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
---
 sound/soc/tegra/tegra210_dmic.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/sound/soc/tegra/tegra210_dmic.c b/sound/soc/tegra/tegra210_dmic.c
index b096478..133509f 100644
--- a/sound/soc/tegra/tegra210_dmic.c
+++ b/sound/soc/tegra/tegra210_dmic.c
@@ -197,8 +197,10 @@  static int tegra210_dmic_put_control(struct snd_kcontrol *kcontrol,
 		dmic->osr_val = value;
 	else if (strstr(kcontrol->id.name, "LR Polarity Select"))
 		dmic->lrsel = value;
+	else
+		return 0;
 
-	return 0;
+	return 1;
 }
 
 static const struct snd_soc_dai_ops tegra210_dmic_dai_ops = {