diff --git a/drivers/pinctrl/renesas/pfc-r8a77995.c b/drivers/pinctrl/renesas/pfc-r8a77995.c
index 324e53deb822..e1098e29e9e0 100644
--- a/drivers/pinctrl/renesas/pfc-r8a77995.c
+++ b/drivers/pinctrl/renesas/pfc-r8a77995.c
@@ -1266,30 +1266,14 @@ static const unsigned int mlb_3pin_mux[] = {
 };
 
 /* - MMC ------------------------------------------------------------------- */
-static const unsigned int mmc_data1_pins[] = {
-	/* D0 */
-	RCAR_GP_PIN(3, 2),
-};
-static const unsigned int mmc_data1_mux[] = {
-	MMC_D0_MARK,
-};
-static const unsigned int mmc_data4_pins[] = {
-	/* D[0:3] */
-	RCAR_GP_PIN(3, 2), RCAR_GP_PIN(3, 3),
-	RCAR_GP_PIN(3, 4), RCAR_GP_PIN(3, 5),
-};
-static const unsigned int mmc_data4_mux[] = {
-	MMC_D0_MARK, MMC_D1_MARK,
-	MMC_D2_MARK, MMC_D3_MARK,
-};
-static const unsigned int mmc_data8_pins[] = {
+static const unsigned int mmc_data_pins[] = {
 	/* D[0:7] */
 	RCAR_GP_PIN(3, 2), RCAR_GP_PIN(3, 3),
 	RCAR_GP_PIN(3, 4), RCAR_GP_PIN(3, 5),
 	RCAR_GP_PIN(3, 6), RCAR_GP_PIN(3, 7),
 	RCAR_GP_PIN(3, 8), RCAR_GP_PIN(3, 9),
 };
-static const unsigned int mmc_data8_mux[] = {
+static const unsigned int mmc_data_mux[] = {
 	MMC_D0_MARK, MMC_D1_MARK,
 	MMC_D2_MARK, MMC_D3_MARK,
 	MMC_D4_MARK, MMC_D5_MARK,
@@ -2054,9 +2038,9 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(i2c3_a),
 	SH_PFC_PIN_GROUP(i2c3_b),
 	SH_PFC_PIN_GROUP(mlb_3pin),
-	SH_PFC_PIN_GROUP(mmc_data1),
-	SH_PFC_PIN_GROUP(mmc_data4),
-	SH_PFC_PIN_GROUP(mmc_data8),
+	BUS_DATA_PIN_GROUP(mmc_data, 1),
+	BUS_DATA_PIN_GROUP(mmc_data, 4),
+	BUS_DATA_PIN_GROUP(mmc_data, 8),
 	SH_PFC_PIN_GROUP(mmc_ctrl),
 	SH_PFC_PIN_GROUP(msiof0_clk),
 	SH_PFC_PIN_GROUP(msiof0_sync),