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: Mark Brown <broonie@xxxxxxxxxx> --- drivers/input/keyboard/qt1050.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/keyboard/qt1050.c b/drivers/input/keyboard/qt1050.c index 6953097db445..b51dfcd76038 100644 --- a/drivers/input/keyboard/qt1050.c +++ b/drivers/input/keyboard/qt1050.c @@ -213,7 +213,7 @@ static struct regmap_config qt1050_regmap_config = { .val_bits = 8, .max_register = QT1050_RES_CAL, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, .wr_table = &qt1050_writeable_table, .rd_table = &qt1050_readable_table, -- 2.39.2