diff options
Diffstat (limited to 'drivers/base/regmap/regcache.c')
| -rw-r--r-- | drivers/base/regmap/regcache.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index d3659ba3cc11..f7fcf2de1301 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -21,6 +21,37 @@ static const struct regcache_ops *cache_types[] = { ®cache_flat_ops, }; +static int regcache_defaults_cmp(const void *a, const void *b) +{ + const struct reg_default *x = a; + const struct reg_default *y = b; + + if (x->reg > y->reg) + return 1; + else if (x->reg < y->reg) + return -1; + else + return 0; +} + +static void regcache_defaults_swap(void *a, void *b, int size) +{ + struct reg_default *x = a; + struct reg_default *y = b; + struct reg_default tmp; + + tmp = *x; + *x = *y; + *y = tmp; +} + +void regcache_sort_defaults(struct reg_default *defaults, unsigned int ndefaults) +{ + sort(defaults, ndefaults, sizeof(*defaults), + regcache_defaults_cmp, regcache_defaults_swap); +} +EXPORT_SYMBOL_GPL(regcache_sort_defaults); + static int regcache_hw_init(struct regmap *map) { int i, j; @@ -154,7 +185,7 @@ int regcache_init(struct regmap *map, const struct regmap_config *config) map->num_reg_defaults = config->num_reg_defaults; map->num_reg_defaults_raw = config->num_reg_defaults_raw; map->reg_defaults_raw = config->reg_defaults_raw; - map->cache_word_size = DIV_ROUND_UP(config->val_bits, 8); + map->cache_word_size = BITS_TO_BYTES(config->val_bits); map->cache_size_raw = map->cache_word_size * config->num_reg_defaults_raw; map->cache = NULL; |