Commit 1767da9e authored by Ionut Nicu's avatar Ionut Nicu Committed by Mark Brown

regmap: fix regcache_reg_present() for empty cache

In the initial case when no reg_defaults values are
provided and no register value was added to the cache
yet, the cache_present bitmap is NULL. If this function
is invoked for any register it should return false
(i.e. the register is not cached) instead of true.
Signed-off-by: default avatarIonut Nicu <ioan.nicu.ext@nsn.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent c095ba72
...@@ -223,7 +223,7 @@ int regcache_set_reg_present(struct regmap *map, unsigned int reg); ...@@ -223,7 +223,7 @@ int regcache_set_reg_present(struct regmap *map, unsigned int reg);
static inline bool regcache_reg_present(struct regmap *map, unsigned int reg) static inline bool regcache_reg_present(struct regmap *map, unsigned int reg)
{ {
if (!map->cache_present) if (!map->cache_present)
return true; return false;
if (reg > map->cache_present_nbits) if (reg > map->cache_present_nbits)
return false; return false;
return map->cache_present[BIT_WORD(reg)] & BIT_MASK(reg); return map->cache_present[BIT_WORD(reg)] & BIT_MASK(reg);
......
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