regmap: Ensure we scream if we enable cache bypass/only at the same time

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
git-mirror · Sep 30, 2011 · ac77a76 · ac77a76
1 parent 6eb0f5e
commit ac77a76
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
@@ -281,6 +281,7 @@ EXPORT_SYMBOL_GPL(regcache_sync);
 void regcache_cache_only(struct regmap *map, bool enable)
 {
 	mutex_lock(&map->lock);
+	WARN_ON(map->cache_bypass && enable);
 	map->cache_only = enable;
 	mutex_unlock(&map->lock);
 }
@@ -300,6 +301,7 @@ EXPORT_SYMBOL_GPL(regcache_cache_only);
 void regcache_cache_bypass(struct regmap *map, bool enable)
 {
 	mutex_lock(&map->lock);
+	WARN_ON(map->cache_only && enable);
 	map->cache_bypass = enable;
 	mutex_unlock(&map->lock);
 }