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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Mark Brown <broonie@kernel.org>,
        Charles Keepax <ckeepax@opensource.cirrus.com>
Subject: [PATCH 5.4 12/52] ASoC: wm8958: Fix change notifications for DSP controls
Date:   Tue, 10 May 2022 15:07:41 +0200
Message-Id: <20220510130730.217832806@linuxfoundation.org>
In-Reply-To: <20220510130729.852544477@linuxfoundation.org>
References: <20220510130729.852544477@linuxfoundation.org>
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From: Mark Brown <broonie@kernel.org>

commit b4f5c6b2e52b27462c0599e64e96e53b58438de1 upstream.

The WM8958 DSP controls all return 0 on successful write, not a boolean
value indicating if the write changed the value of the control. Fix this
by returning 1 after a change, there is already a check at the start of
each put() that skips the function in the case that there is no change.

Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220416125408.197440-1-broonie@kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/wm8958-dsp2.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/sound/soc/codecs/wm8958-dsp2.c
+++ b/sound/soc/codecs/wm8958-dsp2.c
@@ -534,7 +534,7 @@ static int wm8958_mbc_put(struct snd_kco
 
 	wm8958_dsp_apply(component, mbc, wm8994->mbc_ena[mbc]);
 
-	return 0;
+	return 1;
 }
 
 #define WM8958_MBC_SWITCH(xname, xval) {\
@@ -660,7 +660,7 @@ static int wm8958_vss_put(struct snd_kco
 
 	wm8958_dsp_apply(component, vss, wm8994->vss_ena[vss]);
 
-	return 0;
+	return 1;
 }
 
 
@@ -734,7 +734,7 @@ static int wm8958_hpf_put(struct snd_kco
 
 	wm8958_dsp_apply(component, hpf % 3, ucontrol->value.integer.value[0]);
 
-	return 0;
+	return 1;
 }
 
 #define WM8958_HPF_SWITCH(xname, xval) {\
@@ -828,7 +828,7 @@ static int wm8958_enh_eq_put(struct snd_
 
 	wm8958_dsp_apply(component, eq, ucontrol->value.integer.value[0]);
 
-	return 0;
+	return 1;
 }
 
 #define WM8958_ENH_EQ_SWITCH(xname, xval) {\