From ac77a765cb6e3b5aa41c186ad9f37db7fdad7dbe Mon Sep 17 00:00:00 2001 From: Dimitris Papastamos Date: Thu, 29 Sep 2011 14:36:28 +0100 Subject: [PATCH] regmap: Ensure we scream if we enable cache bypass/only at the same time Signed-off-by: Dimitris Papastamos Signed-off-by: Mark Brown --- drivers/base/regmap/regcache.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 876622453cd8..2d55b261f1c5 100644 --- 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); } -- 2.39.5