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regmap: cache: Use regcache_get_value() to check if we updated 

Factor things out a little.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2013-02-21 18:07:01 +00:00
parent 879082c9fe
commit 325acab447
1 changed files with 3 additions and 6 deletions
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9
drivers/base/regmap/regcache.c
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@ -418,25 +418,22 @@ EXPORT_SYMBOL_GPL(regcache_cache_bypass);
bool regcache_set_val(struct regmap *map, void *base, unsigned int idx, bool regcache_set_val(struct regmap *map, void *base, unsigned int idx,
unsigned int val) unsigned int val)
{ {
if (regcache_get_val(map, base, idx) == val)
return true;
switch (map->cache_word_size) { switch (map->cache_word_size) {
case 1: { case 1: {
u8 *cache = base; u8 *cache = base;
if (cache[idx] == val)
return true;
cache[idx] = val; cache[idx] = val;
break; break;
} }
case 2: { case 2: {
u16 *cache = base; u16 *cache = base;
if (cache[idx] == val)
return true;
cache[idx] = val; cache[idx] = val;
break; break;
} }
case 4: { case 4: {
u32 *cache = base; u32 *cache = base;
if (cache[idx] == val)
return true;
cache[idx] = val; cache[idx] = val;
break; break;
} }