diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index e562dc3c10a4..d311da574499 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -25,7 +25,7 @@ static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
 	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
 	unsigned int reg = data->regofs + ((id / 32) << 4);
 
-	return regmap_write(data->regmap, reg, 1);
+	return regmap_write(data->regmap, reg, BIT(id % 32));
 }
 
 static int mtk_reset_deassert_set_clr(struct reset_controller_dev *rcdev,
@@ -34,7 +34,7 @@ static int mtk_reset_deassert_set_clr(struct reset_controller_dev *rcdev,
 	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
 	unsigned int reg = data->regofs + ((id / 32) << 4) + 0x4;
 
-	return regmap_write(data->regmap, reg, 1);
+	return regmap_write(data->regmap, reg, BIT(id % 32));
 }
 
 static int mtk_reset_assert(struct reset_controller_dev *rcdev,