diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2011-11-08 18:37:26 +0100 |
|---|---|---|
| committer | Lokesh Pathak <lpathak@nvidia.com> | 2012-03-05 07:48:50 -0800 |
| commit | be467876d52de68446f67d734804a16ffd358d34 (patch) | |
| tree | 2baecb84b5e903764d4a8648c6c4fa10aa30b34a | |
| parent | 25a84a25b81231f1cfc5c651af4c5e546cc9182d (diff) | |
regmap: Support some more block operations on cached devices
Commit 10a08d9f ("regmap: Support some block operations on cached devices")
allowed raw read operations without throwing a warning when using caches if
all registers are volatile. This patch does the same for raw write operations.
This is for example useful when loading a firmware in a predefined volatile
region on a chip where we otherwise want registers to be cached.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
(cherry picked from commit c48a9d74926c83f62b0251eff0a3dde259923856)
Change-Id: I97c056ab223e0d7de068a92fa43abdebce4dd2a8
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/87552
| -rw-r--r-- | drivers/base/regmap/regmap.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 4afab61329d4..e9eda8c3e017 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -389,9 +389,11 @@ EXPORT_SYMBOL_GPL(regmap_write); int regmap_raw_write(struct regmap *map, unsigned int reg, const void *val, size_t val_len) { + size_t val_count = val_len / map->format.val_bytes; int ret; - WARN_ON(map->cache_type != REGCACHE_NONE); + WARN_ON(!regmap_volatile_range(map, reg, val_count) && + map->cache_type != REGCACHE_NONE); mutex_lock(&map->lock); |