[PATCH 1/4] ASoC: tegra: Fix kcontrol put callback in ADMAIF

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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 ADMAIF driver accordingly

Fixes: f74028e159bb ("ASoC: tegra: Add Tegra210 based ADMAIF driver")
Suggested-by: Jaroslav Kysela <perex@xxxxxxxx>
Suggested-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sameer Pujar <spujar@xxxxxxxxxx>
---
 sound/soc/tegra/tegra210_admaif.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/tegra/tegra210_admaif.c b/sound/soc/tegra/tegra210_admaif.c
index bcccdf3..36ba980 100644
--- a/sound/soc/tegra/tegra210_admaif.c
+++ b/sound/soc/tegra/tegra210_admaif.c
@@ -460,8 +460,10 @@ static int tegra_admaif_put_control(struct snd_kcontrol *kcontrol,
 		admaif->stereo_to_mono[ADMAIF_TX_PATH][ec->reg] = value;
 	else if (strstr(kcontrol->id.name, "Capture Stereo To Mono"))
 		admaif->stereo_to_mono[ADMAIF_RX_PATH][ec->reg] = value;
+	else
+		return 0;
 
-	return 0;
+	return 1;
 }
 
 static int tegra_admaif_dai_probe(struct snd_soc_dai *dai)
-- 
2.7.4




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