diff --git a/drivers/pinctrl/renesas/pfc-r8a779f0.c b/drivers/pinctrl/renesas/pfc-r8a779f0.c
index 6d7675e60cee0ab6..69f3abca1e22b2b5 100644
--- a/drivers/pinctrl/renesas/pfc-r8a779f0.c
+++ b/drivers/pinctrl/renesas/pfc-r8a779f0.c
@@ -144,9 +144,6 @@
 #define IP2SR0_11_8	FM(IRQ1)		F_(0, 0)		F_(0, 0)		FM(MSIOF1_SS2)		F_(0, 0)	FM(TSN0_PHY_INT_A)	F_(0, 0)		F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0)
 #define IP2SR0_15_12	FM(IRQ2)		F_(0, 0)		F_(0, 0)		F_(0, 0)		F_(0, 0)	FM(TSN1_PHY_INT_A)	F_(0, 0)		F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0)
 #define IP2SR0_19_16	FM(IRQ3)		F_(0, 0)		F_(0, 0)		F_(0, 0)		F_(0, 0)	FM(TSN2_PHY_INT_A)	F_(0, 0)		F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0)
-#define IP2SR0_23_20	F_(0, 0)		F_(0, 0)		F_(0, 0)		F_(0, 0)		F_(0, 0)	F_(0, 0)		F_(0, 0)		F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0)
-#define IP2SR0_27_24	F_(0, 0)		F_(0, 0)		F_(0, 0)		F_(0, 0)		F_(0, 0)	F_(0, 0)		F_(0, 0)		F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0)
-#define IP2SR0_31_28	F_(0, 0)		F_(0, 0)		F_(0, 0)		F_(0, 0)		F_(0, 0)	F_(0, 0)		F_(0, 0)		F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0)
 
 /* IP0SR1 */		/* 0 */			/* 1 */			/* 2 */			/* 3 */			/* 4 */		/* 5 */			/* 6 */			/* 7 - F */
 #define IP0SR1_3_0	FM(GP1_00)		FM(TCLK1)		FM(HSCK2)		F_(0, 0)		F_(0, 0)	F_(0, 0)		F_(0, 0)		F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0) F_(0, 0)
@@ -192,9 +189,9 @@ FM(IP0SR0_7_4)		IP0SR0_7_4	FM(IP1SR0_7_4)		IP1SR0_7_4	FM(IP2SR0_7_4)		IP2SR0_7_4
 FM(IP0SR0_11_8)		IP0SR0_11_8	FM(IP1SR0_11_8)		IP1SR0_11_8	FM(IP2SR0_11_8)		IP2SR0_11_8	\
 FM(IP0SR0_15_12)	IP0SR0_15_12	FM(IP1SR0_15_12)	IP1SR0_15_12	FM(IP2SR0_15_12)	IP2SR0_15_12	\
 FM(IP0SR0_19_16)	IP0SR0_19_16	FM(IP1SR0_19_16)	IP1SR0_19_16	FM(IP2SR0_19_16)	IP2SR0_19_16	\
-FM(IP0SR0_23_20)	IP0SR0_23_20	FM(IP1SR0_23_20)	IP1SR0_23_20	FM(IP2SR0_23_20)	IP2SR0_23_20	\
-FM(IP0SR0_27_24)	IP0SR0_27_24	FM(IP1SR0_27_24)	IP1SR0_27_24	FM(IP2SR0_27_24)	IP2SR0_27_24	\
-FM(IP0SR0_31_28)	IP0SR0_31_28	FM(IP1SR0_31_28)	IP1SR0_31_28	FM(IP2SR0_31_28)	IP2SR0_31_28	\
+FM(IP0SR0_23_20)	IP0SR0_23_20	FM(IP1SR0_23_20)	IP1SR0_23_20	\
+FM(IP0SR0_27_24)	IP0SR0_27_24	FM(IP1SR0_27_24)	IP1SR0_27_24	\
+FM(IP0SR0_31_28)	IP0SR0_31_28	FM(IP1SR0_31_28)	IP1SR0_31_28	\
 \
 FM(IP0SR1_3_0)		IP0SR1_3_0	\
 FM(IP0SR1_7_4)		IP0SR1_7_4	\
@@ -1599,18 +1596,11 @@ static const struct sh_pfc_function pinmux_functions[] = {
 static const struct pinmux_cfg_reg pinmux_config_regs[] = {
 #define F_(x, y)	FN_##y
 #define FM(x)		FN_##x
-	{ PINMUX_CFG_REG("GPSR0", 0xe6050040, 32, 1, GROUP(
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
+	{ PINMUX_CFG_REG_VAR("GPSR0", 0xe6050040, 32,
+			     GROUP(-11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+				   1, 1, 1, 1, 1, 1, 1, 1, 1, 1),
+			     GROUP(
+		/* GP0_31_21 RESERVED */
 		GP_0_20_FN,	GPSR0_20,
 		GP_0_19_FN,	GPSR0_19,
 		GP_0_18_FN,	GPSR0_18,
@@ -1633,14 +1623,11 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = {
 		GP_0_1_FN,	GPSR0_1,
 		GP_0_0_FN,	GPSR0_0, ))
 	},
-	{ PINMUX_CFG_REG("GPSR1", 0xe6050840, 32, 1, GROUP(
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
+	{ PINMUX_CFG_REG_VAR("GPSR1", 0xe6050840, 32,
+			     GROUP(-7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+				   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1),
+			     GROUP(
+		/* GP1_31_25 RESERVED */
 		GP_1_24_FN,	GPSR1_24,
 		GP_1_23_FN,	GPSR1_23,
 		GP_1_22_FN,	GPSR1_22,
@@ -1667,22 +1654,11 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = {
 		GP_1_1_FN,	GPSR1_1,
 		GP_1_0_FN,	GPSR1_0, ))
 	},
-	{ PINMUX_CFG_REG("GPSR2", 0xe6051040, 32, 1, GROUP(
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
+	{ PINMUX_CFG_REG_VAR("GPSR2", 0xe6051040, 32,
+			     GROUP(-15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+				   1, 1, 1, 1, 1, 1),
+			     GROUP(
+		/* GP2_31_17 RESERVED */
 		GP_2_16_FN,	GPSR2_16,
 		GP_2_15_FN,	GPSR2_15,
 		GP_2_14_FN,	GPSR2_14,
@@ -1701,20 +1677,11 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = {
 		GP_2_1_FN,	GPSR2_1,
 		GP_2_0_FN,	GPSR2_0, ))
 	},
-	{ PINMUX_CFG_REG("GPSR3", 0xe6051840, 32, 1, GROUP(
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
-		0, 0,
+	{ PINMUX_CFG_REG_VAR("GPSR3", 0xe6051840, 32,
+			     GROUP(-13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+				   1, 1, 1, 1, 1, 1, 1, 1),
+			     GROUP(
+		/* GP3_31_19 RESERVED */
 		GP_3_18_FN,	GPSR3_18,
 		GP_3_17_FN,	GPSR3_17,
 		GP_3_16_FN,	GPSR3_16,
@@ -1760,10 +1727,10 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = {
 		IP1SR0_7_4
 		IP1SR0_3_0))
 	},
-	{ PINMUX_CFG_REG("IP2SR0", 0xe6050068, 32, 4, GROUP(
-		IP2SR0_31_28
-		IP2SR0_27_24
-		IP2SR0_23_20
+	{ PINMUX_CFG_REG_VAR("IP2SR0", 0xe6050068, 32,
+			     GROUP(-12, 4, 4, 4, 4, 4),
+			     GROUP(
+		/* IP2SR0_31_20 RESERVED */
 		IP2SR0_19_16
 		IP2SR0_15_12
 		IP2SR0_11_8
