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 beb709bd56cdda685eca60aa6c5fe1592317488b..eaf65863ec2190c8e705eaa3d4b5a95ff6378d30 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,