The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@xxxxxxxxxx> --- drivers/mfd/as3722.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mfd/as3722.c b/drivers/mfd/as3722.c index a2bf68afc131..bec047bdd088 100644 --- a/drivers/mfd/as3722.c +++ b/drivers/mfd/as3722.c @@ -299,7 +299,7 @@ static const struct regmap_config as3722_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = AS3722_MAX_REGISTER, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, .rd_table = &as3722_readable_table, .wr_table = &as3722_writable_table, .volatile_table = &as3722_volatile_table, -- 2.18.2