[PATCH 5.4 20/43] ASoC: max98090: Generate notifications on changes for custom control

Greg Kroah-Hartman
2022-05-16T19:49:24Z

From: Mark Brown <broonie@kernel.org>

[ Upstream commit 13fcf676d9e102594effc686d98521ff5c90b925 ]

The max98090 driver has some custom controls which share a put() function
which returns 0 unconditionally, meaning that events are not generated
when the value changes. Fix that.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220420193454.2647908-2-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/max98090.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
index 207cdcfb6ebb..ce9f99dd3e87 100644
--- a/sound/soc/codecs/max98090.c
+++ b/sound/soc/codecs/max98090.c
@@ -430,7 +430,7 @@ static int max98090_put_enab_tlv(struct snd_kcontrol *kcontrol,
mask << mc->shift,
sel << mc->shift);

- return 0;
+ return *select != val;
}

static const char *max98090_perf_pwr_text[] =
--
2.35.1