[PATCH v4 7/8] ASoC: mediatek: mt8186: Handle regcache sync failure

[phucduc.bui@gmail.com]

From: bui duc phuc <phucduc.bui@gmail.com>

Check the return value of regcache_sync() and restore cache-only mode
if synchronization fails.

Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
 sound/soc/mediatek/mt8186/mt8186-afe-pcm.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c b/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c
index 44a521c3a610..143386c54dd7 100644
--- a/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c
+++ b/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c
@@ -2743,7 +2743,11 @@ static int mt8186_afe_runtime_resume(struct device *dev)
 		goto skip_regmap;
 
 	regcache_cache_only(afe->regmap, false);
-	regcache_sync(afe->regmap);
+	ret = regcache_sync(afe->regmap);
+	if (ret) {
+		regcache_cache_only(afe->regmap, true);
+		return ret;
+	}
 
 	/* enable audio sys DCM for power saving */
 	regmap_update_bits(afe_priv->infracfg, PERI_BUS_DCM_CTRL, BIT(29), BIT(29));
-- 
2.43.0