diff --git a/drivers/pinctrl/renesas/pfc-r8a77950.c b/drivers/pinctrl/renesas/pfc-r8a77950.c
index ee4ce9349aae..c86064900c6e 100644
--- a/drivers/pinctrl/renesas/pfc-r8a77950.c
+++ b/drivers/pinctrl/renesas/pfc-r8a77950.c
@@ -2369,6 +2369,14 @@ static const unsigned int intc_ex_irq5_mux[] = {
 	IRQ5_MARK,
 };
 
+/* - MLB+ ------------------------------------------------------------------- */
+static const unsigned int mlb_3pin_pins[] = {
+	RCAR_GP_PIN(5, 23), RCAR_GP_PIN(5, 24), RCAR_GP_PIN(5, 25),
+};
+static const unsigned int mlb_3pin_mux[] = {
+	MLB_CLK_MARK, MLB_SIG_MARK, MLB_DAT_MARK,
+};
+
 /* - MSIOF0 ----------------------------------------------------------------- */
 static const unsigned int msiof0_clk_pins[] = {
 	/* SCK */
@@ -3987,6 +3995,7 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(intc_ex_irq3),
 	SH_PFC_PIN_GROUP(intc_ex_irq4),
 	SH_PFC_PIN_GROUP(intc_ex_irq5),
+	SH_PFC_PIN_GROUP(mlb_3pin),
 	SH_PFC_PIN_GROUP(msiof0_clk),
 	SH_PFC_PIN_GROUP(msiof0_sync),
 	SH_PFC_PIN_GROUP(msiof0_ss1),
@@ -4380,6 +4389,10 @@ static const char * const intc_ex_groups[] = {
 	"intc_ex_irq5",
 };
 
+static const char * const mlb_3pin_groups[] = {
+	"mlb_3pin",
+};
+
 static const char * const msiof0_groups[] = {
 	"msiof0_clk",
 	"msiof0_sync",
@@ -4709,6 +4722,7 @@ static const struct sh_pfc_function pinmux_functions[] = {
 	SH_PFC_FUNCTION(i2c5),
 	SH_PFC_FUNCTION(i2c6),
 	SH_PFC_FUNCTION(intc_ex),
+	SH_PFC_FUNCTION(mlb_3pin),
 	SH_PFC_FUNCTION(msiof0),
 	SH_PFC_FUNCTION(msiof1),
 	SH_PFC_FUNCTION(msiof2),
diff --git a/drivers/pinctrl/renesas/pfc-r8a77951.c b/drivers/pinctrl/renesas/pfc-r8a77951.c
index 84c0ea5d59c1..b55c4d4156ce 100644
--- a/drivers/pinctrl/renesas/pfc-r8a77951.c
+++ b/drivers/pinctrl/renesas/pfc-r8a77951.c
@@ -2453,6 +2453,14 @@ static const unsigned int intc_ex_irq5_mux[] = {
 	IRQ5_MARK,
 };
 
+/* - MLB+ ------------------------------------------------------------------- */
+static const unsigned int mlb_3pin_pins[] = {
+	RCAR_GP_PIN(5, 23), RCAR_GP_PIN(5, 24), RCAR_GP_PIN(5, 25),
+};
+static const unsigned int mlb_3pin_mux[] = {
+	MLB_CLK_MARK, MLB_SIG_MARK, MLB_DAT_MARK,
+};
+
 /* - MSIOF0 ----------------------------------------------------------------- */
 static const unsigned int msiof0_clk_pins[] = {
 	/* SCK */
@@ -4235,7 +4243,7 @@ static const unsigned int vin5_clk_mux[] = {
 static const struct {
 	struct sh_pfc_pin_group common[328];
 #ifdef CONFIG_PINCTRL_PFC_R8A77951
-	struct sh_pfc_pin_group automotive[30];
+	struct sh_pfc_pin_group automotive[31];
 #endif
 } pinmux_groups = {
 	.common = {
@@ -4600,6 +4608,7 @@ static const struct {
 		SH_PFC_PIN_GROUP(drif3_ctrl_b),
 		SH_PFC_PIN_GROUP(drif3_data0_b),
 		SH_PFC_PIN_GROUP(drif3_data1_b),
+		SH_PFC_PIN_GROUP(mlb_3pin),
 	}
 #endif /* CONFIG_PINCTRL_PFC_R8A77951 */
 };
@@ -4795,6 +4804,10 @@ static const char * const intc_ex_groups[] = {
 	"intc_ex_irq5",
 };
 
+static const char * const mlb_3pin_groups[] = {
+	"mlb_3pin",
+};
+
 static const char * const msiof0_groups[] = {
 	"msiof0_clk",
 	"msiof0_sync",
@@ -5142,7 +5155,7 @@ static const char * const vin5_groups[] = {
 };
 
 static const struct {
-	struct sh_pfc_function common[55];
+	struct sh_pfc_function common[56];
 #ifdef CONFIG_PINCTRL_PFC_R8A77951
 	struct sh_pfc_function automotive[4];
 #endif
@@ -5168,6 +5181,7 @@ static const struct {
 		SH_PFC_FUNCTION(i2c5),
 		SH_PFC_FUNCTION(i2c6),
 		SH_PFC_FUNCTION(intc_ex),
+		SH_PFC_FUNCTION(mlb_3pin),
 		SH_PFC_FUNCTION(msiof0),
 		SH_PFC_FUNCTION(msiof1),
 		SH_PFC_FUNCTION(msiof2),
diff --git a/drivers/pinctrl/renesas/pfc-r8a7796.c b/drivers/pinctrl/renesas/pfc-r8a7796.c
index a4d74df3d201..14c437c3b6f5 100644
--- a/drivers/pinctrl/renesas/pfc-r8a7796.c
+++ b/drivers/pinctrl/renesas/pfc-r8a7796.c
@@ -2458,6 +2458,14 @@ static const unsigned int intc_ex_irq5_mux[] = {
 	IRQ5_MARK,
 };
 
+/* - MLB+ ------------------------------------------------------------------- */
+static const unsigned int mlb_3pin_pins[] = {
+	RCAR_GP_PIN(5, 23), RCAR_GP_PIN(5, 24), RCAR_GP_PIN(5, 25),
+};
+static const unsigned int mlb_3pin_mux[] = {
+	MLB_CLK_MARK, MLB_SIG_MARK, MLB_DAT_MARK,
+};
+
 /* - MSIOF0 ----------------------------------------------------------------- */
 static const unsigned int msiof0_clk_pins[] = {
 	/* SCK */
@@ -4210,7 +4218,7 @@ static const unsigned int vin5_clk_mux[] = {
 static const struct {
 	struct sh_pfc_pin_group common[324];
 #if defined(CONFIG_PINCTRL_PFC_R8A77960) || defined(CONFIG_PINCTRL_PFC_R8A77961)
-	struct sh_pfc_pin_group automotive[30];
+	struct sh_pfc_pin_group automotive[31];
 #endif
 } pinmux_groups = {
 	.common = {
@@ -4571,6 +4579,7 @@ static const struct {
 		SH_PFC_PIN_GROUP(drif3_ctrl_b),
 		SH_PFC_PIN_GROUP(drif3_data0_b),
 		SH_PFC_PIN_GROUP(drif3_data1_b),
+		SH_PFC_PIN_GROUP(mlb_3pin),
 	}
 #endif /* CONFIG_PINCTRL_PFC_R8A77960 || CONFIG_PINCTRL_PFC_R8A77961 */
 };
@@ -4766,6 +4775,10 @@ static const char * const intc_ex_groups[] = {
 	"intc_ex_irq5",
 };
 
+static const char * const mlb_3pin_groups[] = {
+	"mlb_3pin",
+};
+
 static const char * const msiof0_groups[] = {
 	"msiof0_clk",
 	"msiof0_sync",
@@ -5100,7 +5113,7 @@ static const char * const vin5_groups[] = {
 };
 
 static const struct {
-	struct sh_pfc_function common[52];
+	struct sh_pfc_function common[53];
 #if defined(CONFIG_PINCTRL_PFC_R8A77960) || defined(CONFIG_PINCTRL_PFC_R8A77961)
 	struct sh_pfc_function automotive[4];
 #endif
@@ -5126,6 +5139,7 @@ static const struct {
 		SH_PFC_FUNCTION(i2c5),
 		SH_PFC_FUNCTION(i2c6),
 		SH_PFC_FUNCTION(intc_ex),
+		SH_PFC_FUNCTION(mlb_3pin),
 		SH_PFC_FUNCTION(msiof0),
 		SH_PFC_FUNCTION(msiof1),
 		SH_PFC_FUNCTION(msiof2),
diff --git a/drivers/pinctrl/renesas/pfc-r8a77965.c b/drivers/pinctrl/renesas/pfc-r8a77965.c
index a7607a679886..b6adef9e8761 100644
--- a/drivers/pinctrl/renesas/pfc-r8a77965.c
+++ b/drivers/pinctrl/renesas/pfc-r8a77965.c
@@ -2609,6 +2609,14 @@ static const unsigned int intc_ex_irq5_mux[] = {
 	IRQ5_MARK,
 };
 
+/* - MLB+ ------------------------------------------------------------------- */
+static const unsigned int mlb_3pin_pins[] = {
+	RCAR_GP_PIN(5, 23), RCAR_GP_PIN(5, 24), RCAR_GP_PIN(5, 25),
+};
+static const unsigned int mlb_3pin_mux[] = {
+	MLB_CLK_MARK, MLB_SIG_MARK, MLB_DAT_MARK,
+};
+
 /* - MSIOF0 ----------------------------------------------------------------- */
 static const unsigned int msiof0_clk_pins[] = {
 	/* SCK */
@@ -4460,7 +4468,7 @@ static const unsigned int vin5_clk_mux[] = {
 static const struct {
 	struct sh_pfc_pin_group common[326];
 #ifdef CONFIG_PINCTRL_PFC_R8A77965
-	struct sh_pfc_pin_group automotive[30];
+	struct sh_pfc_pin_group automotive[31];
 #endif
 } pinmux_groups = {
 	.common = {
@@ -4823,6 +4831,7 @@ static const struct {
 		SH_PFC_PIN_GROUP(drif3_ctrl_b),
 		SH_PFC_PIN_GROUP(drif3_data0_b),
 		SH_PFC_PIN_GROUP(drif3_data1_b),
+		SH_PFC_PIN_GROUP(mlb_3pin),
 	}
 #endif /* CONFIG_PINCTRL_PFC_R8A77965 */
 };
@@ -5018,6 +5027,10 @@ static const char * const intc_ex_groups[] = {
 	"intc_ex_irq5",
 };
 
+static const char * const mlb_3pin_groups[] = {
+	"mlb_3pin",
+};
+
 static const char * const msiof0_groups[] = {
 	"msiof0_clk",
 	"msiof0_sync",
@@ -5356,7 +5369,7 @@ static const char * const vin5_groups[] = {
 };
 
 static const struct {
-	struct sh_pfc_function common[53];
+	struct sh_pfc_function common[54];
 #ifdef CONFIG_PINCTRL_PFC_R8A77965
 	struct sh_pfc_function automotive[4];
 #endif
@@ -5382,6 +5395,7 @@ static const struct {
 		SH_PFC_FUNCTION(i2c5),
 		SH_PFC_FUNCTION(i2c6),
 		SH_PFC_FUNCTION(intc_ex),
+		SH_PFC_FUNCTION(mlb_3pin),
 		SH_PFC_FUNCTION(msiof0),
 		SH_PFC_FUNCTION(msiof1),
 		SH_PFC_FUNCTION(msiof2),
