[PATCH 12/19] ASoC: codecs: wm2200: Propagate regcache_sync() errors

[Pengpeng Hou]

regcache_sync() can fail while replaying cached register state during
runtime resume. wm2200_runtime_resume() currently ignores that failure.

Propagate the error, restore cache-only/dirty state, and unwind the LDO
and core supplies acquired by runtime resume.

Signed-off-by: Pengpeng Hou <pengpeng@xxxxxxxxxxx>
---
 sound/soc/codecs/wm2200.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm2200.c b/sound/soc/codecs/wm2200.c
index ba8ce2e6e615..bc78b553b6cb 100644
--- a/sound/soc/codecs/wm2200.c
+++ b/sound/soc/codecs/wm2200.c
@@ -2461,7 +2461,15 @@ static int wm2200_runtime_resume(struct device *dev)
 	}
 
 	regcache_cache_only(wm2200->regmap, false);
-	regcache_sync(wm2200->regmap);
+	ret = regcache_sync(wm2200->regmap);
+	if (ret) {
+		regcache_cache_only(wm2200->regmap, true);
+		regcache_mark_dirty(wm2200->regmap);
+		gpiod_set_value_cansleep(wm2200->ldo_ena, 0);
+		regulator_bulk_disable(ARRAY_SIZE(wm2200->core_supplies),
+				       wm2200->core_supplies);
+		return ret;
+	}
 
 	return 0;
 }
-- 
2.43.0