diff options
| author |   Dimitris Papastamos <dp@opensource.wolfsonmicro.com> | 2011-09-29 14:36:25 +0100 |
|---|---|---|
| committer |   Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-09-30 13:57:47 +0100 |
| commit | 13753a9088af23c61e2f5c10a8f3ea136d8ebab5 (patch) | |
| tree | 44c7a109f98995800f55ffd8b0cf0cefca158caf /drivers/base | |
| parent | regmap: Fix apostrophe usage (diff) | |
| download | linux-dev-13753a9088af23c61e2f5c10a8f3ea136d8ebab5.tar.xz linux-dev-13753a9088af23c61e2f5c10a8f3ea136d8ebab5.zip | |
regmap: Lock the sync path, ensure we use the lockless _regmap_write()
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-indexed.c | 4 | ||||
| -rw-r--r-- | drivers/base/regmap/regcache-lzo.c | 2 | ||||
| -rw-r--r-- | drivers/base/regmap/regcache-rbtree.c | 2 | ||||
| -rw-r--r-- | drivers/base/regmap/regcache.c | 4 |
4 files changed, 7 insertions, 5 deletions
diff --git a/drivers/base/regmap/regcache-indexed.c b/drivers/base/regmap/regcache-indexed.c index 268497aee46d..2e10bb13bfc4 100644 --- a/drivers/base/regmap/regcache-indexed.c +++ b/drivers/base/regmap/regcache-indexed.c @@ -45,8 +45,8 @@ static int regcache_indexed_sync(struct regmap *map) int ret; for (i = 0; i < map->num_reg_defaults; i++) { - ret = regmap_write(map, map->reg_defaults[i].reg, - map->reg_defaults[i].def); + ret = _regmap_write(map, map->reg_defaults[i].reg, + map->reg_defaults[i].def); if (ret < 0) return ret; dev_dbg(map->dev, "Synced register %#x, value %#x\n", diff --git a/drivers/base/regmap/regcache-lzo.c b/drivers/base/regmap/regcache-lzo.c index 9079cb50b0b9..ad6af925f56c 100644 --- a/drivers/base/regmap/regcache-lzo.c +++ b/drivers/base/regmap/regcache-lzo.c @@ -339,7 +339,7 @@ static int regcache_lzo_sync(struct regmap *map) if (ret) return ret; map->cache_bypass = 1; - ret = regmap_write(map, i, val); + ret = _regmap_write(map, i, val); map->cache_bypass = 0; if (ret) return ret; diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index de32ced1917a..40f23dd8478c 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -327,7 +327,7 @@ static int regcache_rbtree_sync(struct regmap *map) if (val == def) continue; map->cache_bypass = 1; - ret = regmap_write(map, regtmp, val); + ret = _regmap_write(map, regtmp, val); map->cache_bypass = 0; if (ret) return ret; diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 2caf6e49c389..59e432c0163d 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -230,6 +230,7 @@ int regcache_sync(struct regmap *map) BUG_ON(!map->cache_ops); + mutex_lock(&map->lock); dev_dbg(map->dev, "Syncing %s cache\n", map->cache_ops->name); name = map->cache_ops->name; @@ -242,7 +243,7 @@ int regcache_sync(struct regmap *map) if (ret < 0) goto out; map->cache_bypass = 1; - ret = regmap_write(map, i, val); + ret = _regmap_write(map, i, val); map->cache_bypass = 0; if (ret < 0) goto out; @@ -254,6 +255,7 @@ int regcache_sync(struct regmap *map) } out: trace_regcache_sync(map->dev, name, "stop"); + mutex_unlock(&map->lock); return ret; } |