diff options
Diffstat (limited to 'drivers/base/regmap/internal.h')
| -rw-r--r-- | drivers/base/regmap/internal.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index 95d46a5ea7e7..b01fe59fbfe8 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -126,6 +126,9 @@ struct regmap { void *cache; u32 cache_dirty; + unsigned long *cache_present; + unsigned int cache_present_nbits; + struct reg_default *patch; int patch_regs; @@ -201,6 +204,16 @@ unsigned int regcache_get_val(struct regmap *map, const void *base, bool regcache_set_val(struct regmap *map, void *base, unsigned int idx, unsigned int val); int regcache_lookup_reg(struct regmap *map, unsigned int reg); +int regcache_set_reg_present(struct regmap *map, unsigned int reg); + +static inline bool regcache_reg_present(struct regmap *map, unsigned int reg) +{ + if (!map->cache_present) + return true; + if (reg > map->cache_present_nbits) + return false; + return map->cache_present[BIT_WORD(reg)] & BIT_MASK(reg); +} int _regmap_raw_write(struct regmap *map, unsigned int reg, const void *val, size_t val_len, bool async); |