Messages in this thread Patch in this message | | | From | Stephen Warren <> | Subject | [PATCH] regmap: assume registers are volatile iff no cache | Date | Mon, 3 Jun 2013 11:34:48 -0600 |
| |
From: Stephen Warren <swarren@nvidia.com>
If a regmap has a cache, it's likely that registers are not volatile, perhaps with exceptions. Otherwise, the cache would not be useful. Encode this assumption into regmap_volatile()'s default return value, for the case where a regmap doesn't specify which registers are volatile.
Signed-off-by: Stephen Warren <swarren@nvidia.com> --- drivers/base/regmap/regmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 1a01553..feb37af 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -123,7 +123,7 @@ bool regmap_volatile(struct regmap *map, unsigned int reg) if (map->volatile_table) return regmap_check_range_table(map, reg, map->volatile_table); - return true; + return (map->cache_type == REGCACHE_NONE); } bool regmap_precious(struct regmap *map, unsigned int reg) -- 1.7.10.4
| |