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/bd9571mwv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mfd/bd9571mwv.c b/drivers/mfd/bd9571mwv.c index 819d09e4d100..0a955178d469 100644 --- a/drivers/mfd/bd9571mwv.c +++ b/drivers/mfd/bd9571mwv.c @@ -67,7 +67,7 @@ static const struct regmap_access_table bd9571mwv_volatile_table = { static const struct regmap_config bd9571mwv_regmap_config = { .reg_bits = 8, .val_bits = 8, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, .rd_table = &bd9571mwv_readable_table, .wr_table = &bd9571mwv_writable_table, .volatile_table = &bd9571mwv_volatile_table, @@ -152,7 +152,7 @@ static const struct regmap_access_table bd9574mwf_volatile_table = { static const struct regmap_config bd9574mwf_regmap_config = { .reg_bits = 8, .val_bits = 8, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, .rd_table = &bd9574mwf_readable_table, .wr_table = &bd9574mwf_writable_table, .volatile_table = &bd9574mwf_volatile_table, -- 2.18.2