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From 13fcf676d9e102594effc686d98521ff5c90b925 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Wed, 20 Apr 2022 20:34:54 +0100
Subject: [PATCH] ASoC: max98090: Generate notifications on changes for custom control
Git-commit: 13fcf676d9e102594effc686d98521ff5c90b925
Patch-mainline: v5.18-rc6
References: git-fixes

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
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 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 6d9261346842..62b41ca050a2 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[] =
-- 
2.35.3