diff options
| -rw-r--r-- | drivers/base/regmap/regcache-rbtree.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index 52511f95857a..e31498499b0f 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -304,7 +304,7 @@ static int regcache_rbtree_sync(struct regmap *map) struct rb_node *node; struct regcache_rbtree_node *rbnode; unsigned int regtmp; - unsigned int val, def; + unsigned int val; int ret; int i; @@ -315,13 +315,12 @@ static int regcache_rbtree_sync(struct regmap *map) regtmp = rbnode->base_reg + i; val = regcache_rbtree_get_register(rbnode, i, map->cache_word_size); + + /* Is this the hardware default? If so skip. */ ret = regcache_lookup_reg(map, i); - if (ret < 0) - def = 0; - else - def = map->reg_defaults[ret].def; - if (val == def) + if (ret > 0 && val == map->reg_defaults[ret].def) continue; + map->cache_bypass = 1; ret = _regmap_write(map, regtmp, val); map->cache_bypass = 0; |