ASoC: wm8962: Redo early init of the part on resume

Ensure robust startup of the part by going through the reset procedure
prior to resyncing the full register cache, avoiding potential intermittent
faults in some designs.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index beb709b..eaf6586 100644 (file)
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3725,6 +3725,9 @@ static int wm8962_runtime_resume(struct device *dev)
        }
 
        regcache_cache_only(wm8962->regmap, false);
+
+       wm8962_reset(wm8962);
+
        regcache_sync(wm8962->regmap);
 
        regmap_update_bits(wm8962->regmap, WM8962_ANTI_POP,