diff --git a/drivers/clk/clk-renesas-pcie.c b/drivers/clk/clk-renesas-pcie.c
index 53e21ac302e6..4c3a5e4eb77a 100644
--- a/drivers/clk/clk-renesas-pcie.c
+++ b/drivers/clk/clk-renesas-pcie.c
@@ -25,10 +25,12 @@
 #define RS9_REG_SS_AMP_0V7			0x1
 #define RS9_REG_SS_AMP_0V8			0x2
 #define RS9_REG_SS_AMP_0V9			0x3
+#define RS9_REG_SS_AMP_DEFAULT			RS9_REG_SS_AMP_0V8
 #define RS9_REG_SS_AMP_MASK			0x3
 #define RS9_REG_SS_SSC_100			0
 #define RS9_REG_SS_SSC_M025			(1 << 3)
 #define RS9_REG_SS_SSC_M050			(3 << 3)
+#define RS9_REG_SS_SSC_DEFAULT			RS9_REG_SS_SSC_100
 #define RS9_REG_SS_SSC_MASK			(3 << 3)
 #define RS9_REG_SS_SSC_LOCK			BIT(5)
 #define RS9_REG_SR				0x2
@@ -205,8 +207,8 @@ static int rs9_get_common_config(struct rs9_driver_data *rs9)
 	int ret;
 
 	/* Set defaults */
-	rs9->pll_amplitude = RS9_REG_SS_AMP_0V7;
-	rs9->pll_ssc = RS9_REG_SS_SSC_100;
+	rs9->pll_amplitude = RS9_REG_SS_AMP_DEFAULT;
+	rs9->pll_ssc = RS9_REG_SS_SSC_DEFAULT;
 
 	/* Output clock amplitude */
 	ret = of_property_read_u32(np, "renesas,out-amplitude-microvolt",
@@ -247,13 +249,13 @@ static void rs9_update_config(struct rs9_driver_data *rs9)
 	int i;
 
 	/* If amplitude is non-default, update it. */
-	if (rs9->pll_amplitude != RS9_REG_SS_AMP_0V7) {
+	if (rs9->pll_amplitude != RS9_REG_SS_AMP_DEFAULT) {
 		regmap_update_bits(rs9->regmap, RS9_REG_SS, RS9_REG_SS_AMP_MASK,
 				   rs9->pll_amplitude);
 	}
 
 	/* If SSC is non-default, update it. */
-	if (rs9->pll_ssc != RS9_REG_SS_SSC_100) {
+	if (rs9->pll_ssc != RS9_REG_SS_SSC_DEFAULT) {
 		regmap_update_bits(rs9->regmap, RS9_REG_SS, RS9_REG_SS_SSC_MASK,
 				   rs9->pll_ssc);
 	}