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authorMark Brown <broonie@opensource.wolfsonmicro.com>2012-07-11 19:03:48 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-08-09 08:22:37 -0700
commitf872122ebb0a43181addd465bbfbc5bd66e27f84 (patch)
treefc50c23569e84343828602e8b158a77209a48bfd /sound
parentb1f7d1337973f019c812a042f25a8679839514e4 (diff)
ASoC: wm8962: Redo early init of the part on resume
commit e4dd76788c7e5b27165890d712c8c4f6f0abd645 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/wm8962.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 0cfce9999c89..21a6727bfc23 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3722,6 +3722,9 @@ 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,