diff options
| author |   Dimitris Papastamos <dp@opensource.wolfsonmicro.com> | 2011-09-29 14:36:28 +0100 |
|---|---|---|
| committer |   Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-09-30 13:57:47 +0100 |
| commit | ac77a765cb6e3b5aa41c186ad9f37db7fdad7dbe (patch) | |
| tree | 8a5c8df6dea4899dfff26eafe7027b1349be23a6 /drivers/base | |
| parent | regmap: Implement regcache_cache_bypass helper function (diff) | |
| download | linux-dev-ac77a765cb6e3b5aa41c186ad9f37db7fdad7dbe.tar.xz linux-dev-ac77a765cb6e3b5aa41c186ad9f37db7fdad7dbe.zip | |
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>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/regmap/regcache.c | 2 |
1 files changed, 2 insertions, 0 deletions
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); } |