diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index c6983b7bd78c..07aca9fc6d97 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -1686,7 +1686,7 @@ static struct regmap_config regcfg = {
 	.reg_bits = 5,
 	.pad_bits = 3,
 	.val_bits = 8,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.volatile_reg = sc16is7xx_regmap_volatile,
 	.precious_reg = sc16is7xx_regmap_precious,
 	.writeable_noinc_reg = sc16is7xx_regmap_noinc,