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/hwmon/ina3221.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/ina3221.c b/drivers/hwmon/ina3221.c index 5ffdc94db436..2c9530b6f192 100644 --- a/drivers/hwmon/ina3221.c +++ b/drivers/hwmon/ina3221.c @@ -762,7 +762,7 @@ static const struct regmap_config ina3221_regmap_config = { .reg_bits = 8, .val_bits = 16, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, .volatile_table = &ina3221_volatile_table, }; -- 2.18.2