diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2012-03-23 11:04:57 +0100 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-04-15 13:56:17 -0700 |
| commit | 444264a5219523b112929d523918c25469cf695c (patch) | |
| tree | cac1366029078271144a8bb478cc297dbeca6939 /drivers/base | |
| parent | 7c71eb935905d8181a34218f33ac5f49d2a0db65 (diff) | |
regmap: rbtree: Fix register default look-up in sync
The code currently passes the register offset in the current block to
regcache_lookup_reg. This works fine as long as there is only one block and with
base register of 0, but in all other cases it will look-up the default for a
wrong register, which can cause unnecessary register writes. This patch fixes
it by passing the actual register number to regcache_lookup_reg.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: <stable@vger.kernel.org>
(cherry picked from commit 4b4e9e43fd210e0cd2a5d29357e7c000e13e08ae)
Change-Id: Ibed70828471423df5432fea67316ca9ad8aeb52a
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/96497
Reviewed-by: Automatic_Commit_Validation_User
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/regmap/regcache-rbtree.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index 8d51916a283d..de7241c29a71 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -395,7 +395,7 @@ static int regcache_rbtree_sync(struct regmap *map, unsigned int min, map->cache_word_size); /* Is this the hardware default? If so skip. */ - ret = regcache_lookup_reg(map, i); + ret = regcache_lookup_reg(map, regtmp); if (ret >= 0 && val == map->reg_defaults[ret].def) continue; |