[PATCH 10/15] ASoC: mediatek: mt8192: Handle regcache_sync() failure in runtime resume

[phucduc.bui at gmail.com]

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

Currently, the return value of regcache_sync() in
mt8192_afe_runtime_resume() is ignored. If regcache_sync() fails, the
function continues execution with clocks enabled and regcache out of sync.

Fix this by checking the return value of regcache_sync(). On failure,
restore regcache to cache-only mode and disable the clocks enabled
earlier in the function.

Fixes: 125ab5d588b0 ("ASoC: mediatek: mt8192: add platform driver")
Signed-off-by: bui duc phuc <phucduc.bui at gmail.com>
---
 sound/soc/mediatek/mt8192/mt8192-afe-pcm.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c b/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c
index e4ecd23df180..5aaff5bebfb6 100644
--- a/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c
+++ b/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c
@@ -2104,7 +2104,11 @@ static int mt8192_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);
+		mt8192_afe_disable_clock(afe);
+	}
 
 	/* enable audio sys DCM for power saving */
 	regmap_update_bits(afe_priv->infracfg,
-- 
2.43.0