[PATCH AUTOSEL 4.14 2/5] ASoC: wm5110: Fix DRE control

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From: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>

[ Upstream commit 0bc0ae9a5938d512fd5d44f11c9c04892dcf4961 ]

The DRE controls on wm5110 should return a value of 1 if the DRE state
is actually changed, update to fix this.

Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220621102041.1713504-2-ckeepax@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 sound/soc/codecs/wm5110.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index 858a24fc28e8..9d099d75021c 100644
--- a/sound/soc/codecs/wm5110.c
+++ b/sound/soc/codecs/wm5110.c
@@ -406,6 +406,7 @@ static int wm5110_put_dre(struct snd_kcontrol *kcontrol,
 	unsigned int rnew = (!!ucontrol->value.integer.value[1]) << mc->rshift;
 	unsigned int lold, rold;
 	unsigned int lena, rena;
+	bool change = false;
 	int ret;
 
 	snd_soc_dapm_mutex_lock(dapm);
@@ -433,8 +434,8 @@ static int wm5110_put_dre(struct snd_kcontrol *kcontrol,
 		goto err;
 	}
 
-	ret = regmap_update_bits(arizona->regmap, ARIZONA_DRE_ENABLE,
-				 mask, lnew | rnew);
+	ret = regmap_update_bits_check(arizona->regmap, ARIZONA_DRE_ENABLE,
+				       mask, lnew | rnew, &change);
 	if (ret) {
 		dev_err(arizona->dev, "Failed to set DRE: %d\n", ret);
 		goto err;
@@ -447,6 +448,9 @@ static int wm5110_put_dre(struct snd_kcontrol *kcontrol,
 	if (!rnew && rold)
 		wm5110_clear_pga_volume(arizona, mc->rshift);
 
+	if (change)
+		ret = 1;
+
 err:
 	snd_soc_dapm_mutex_unlock(dapm);
 
-- 
2.35.1




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