diff --git a/drivers/iio/light/opt4060.c b/drivers/iio/light/opt4060.c
index f4085020e03e..88ed85cf1844 100644
--- a/drivers/iio/light/opt4060.c
+++ b/drivers/iio/light/opt4060.c
@@ -1063,7 +1063,7 @@ static const struct regmap_config opt4060_regmap_config = {
 	.name = "opt4060",
 	.reg_bits = 8,
 	.val_bits = 16,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.max_register = OPT4060_DEVICE_ID,
 	.readable_reg = opt4060_readable_reg,
 	.writeable_reg = opt4060_writable_reg,