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regmap: Lock the sync path, ensure we use the lockless _regmap_write()

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Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Dimitris Papastamos
2011-09-29 14:36:25 +01:00
committed by Mark Brown
parent 5fcd256076
commit 13753a9088
4 changed files with 7 additions and 5 deletions
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4
drivers/base/regmap/regcache.c
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@@ -230,6 +230,7 @@ int regcache_sync(struct regmap *map)
BUG_ON(!map->cache_ops);
mutex_lock(&map->lock);
dev_dbg(map->dev, "Syncing %s cache\n",
map->cache_ops->name);
name = map->cache_ops->name;
@@ -242,7 +243,7 @@ int regcache_sync(struct regmap *map)
if (ret < 0)
goto out;
map->cache_bypass = 1;
ret = regmap_write(map, i, val);
ret = _regmap_write(map, i, val);
map->cache_bypass = 0;
if (ret < 0)
goto out;
@@ -254,6 +255,7 @@ int regcache_sync(struct regmap *map)
}
out:
trace_regcache_sync(map->dev, name, "stop");
mutex_unlock(&map->lock);
return ret;
}