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

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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
This commit is contained in:
Mark Brown
2012-07-11 19:03:48 +01:00
parent b761c0ca2e
commit e4dd76788c
1 changed files with 3 additions and 0 deletions
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3
sound/soc/codecs/wm8962.c
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@@ -3725,6 +3725,9 @@ static int wm8962_runtime_resume(struct device *dev)
} }
regcache_cache_only(wm8962->regmap, false); regcache_cache_only(wm8962->regmap, false);
wm8962_reset(wm8962);
regcache_sync(wm8962->regmap); regcache_sync(wm8962->regmap);
regmap_update_bits(wm8962->regmap, WM8962_ANTI_POP, regmap_update_bits(wm8962->regmap, WM8962_ANTI_POP,