[PATCH 5.16 0344/1017] ASoC: codecs: wcd934x: fix return value of wcd934x_rx_hph_mode_put

From: Greg Kroah-Hartman
Date: Tue Apr 05 2022 - 08:16:49 EST


From: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>

[ Upstream commit 4b0bec6088588a120d33db85b1f0d9f096d1df71 ]

wcd934x_rx_hph_mode_put currently returns zero eventhough it changes the value.
Fix this, so that change notifications are sent correctly.

Fixes: 1cde8b822332 ("ASoC: wcd934x: add basic controls")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220222183212.11580-10-srinivas.kandagatla@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
sound/soc/codecs/wcd934x.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c
index 68c9d694d379..654d847a050e 100644
--- a/sound/soc/codecs/wcd934x.c
+++ b/sound/soc/codecs/wcd934x.c
@@ -3308,13 +3308,16 @@ static int wcd934x_rx_hph_mode_put(struct snd_kcontrol *kc,

mode_val = ucontrol->value.enumerated.item[0];

+ if (mode_val == wcd->hph_mode)
+ return 0;
+
if (mode_val == 0) {
dev_err(wcd->dev, "Invalid HPH Mode, default to ClSH HiFi\n");
mode_val = CLS_H_LOHIFI;
}
wcd->hph_mode = mode_val;

- return 0;
+ return 1;
}

static int slim_rx_mux_get(struct snd_kcontrol *kc,
--
2.34.1