diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7791.c b/drivers/pinctrl/sh-pfc/pfc-r8a7791.c
index 2e688dc..394b234 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7791.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7791.c
@@ -1867,6 +1867,192 @@ static const unsigned int eth_rmii_mux[] = {
 	ETH_RXD0_MARK, ETH_RXD1_MARK, ETH_RX_ER_MARK, ETH_CRS_DV_MARK,
 	ETH_TXD0_MARK, ETH_TXD1_MARK, ETH_TX_EN_MARK, ETH_REFCLK_MARK,
 };
+
+/* - HSCIF0 ----------------------------------------------------------------- */
+static const unsigned int hscif0_data_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(7, 3), RCAR_GP_PIN(7, 4),
+};
+static const unsigned int hscif0_data_mux[] = {
+	HRX0_MARK, HTX0_MARK,
+};
+static const unsigned int hscif0_clk_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(7, 2),
+};
+static const unsigned int hscif0_clk_mux[] = {
+	HSCK0_MARK,
+};
+static const unsigned int hscif0_ctrl_pins[] = {
+	/* RTS, CTS */
+	RCAR_GP_PIN(7, 1), RCAR_GP_PIN(7, 0),
+};
+static const unsigned int hscif0_ctrl_mux[] = {
+	HRTS0_N_MARK, HCTS0_N_MARK,
+};
+static const unsigned int hscif0_data_b_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(3, 12), RCAR_GP_PIN(3, 15),
+};
+static const unsigned int hscif0_data_b_mux[] = {
+	HRX0_B_MARK, HTX0_B_MARK,
+};
+static const unsigned int hscif0_ctrl_b_pins[] = {
+	/* RTS, CTS */
+	RCAR_GP_PIN(3, 14), RCAR_GP_PIN(3, 13),
+};
+static const unsigned int hscif0_ctrl_b_mux[] = {
+	HRTS0_N_B_MARK, HCTS0_N_B_MARK,
+};
+static const unsigned int hscif0_data_c_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(2, 0), RCAR_GP_PIN(2, 1),
+};
+static const unsigned int hscif0_data_c_mux[] = {
+	HRX0_C_MARK, HTX0_C_MARK,
+};
+static const unsigned int hscif0_clk_c_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(5, 31),
+};
+static const unsigned int hscif0_clk_c_mux[] = {
+	HSCK0_C_MARK,
+};
+/* - HSCIF1 ----------------------------------------------------------------- */
+static const unsigned int hscif1_data_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(7, 5), RCAR_GP_PIN(7, 6),
+};
+static const unsigned int hscif1_data_mux[] = {
+	HRX1_MARK, HTX1_MARK,
+};
+static const unsigned int hscif1_clk_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(7, 7),
+};
+static const unsigned int hscif1_clk_mux[] = {
+	HSCK1_MARK,
+};
+static const unsigned int hscif1_ctrl_pins[] = {
+	/* RTS, CTS */
+	RCAR_GP_PIN(7, 9), RCAR_GP_PIN(7, 8),
+};
+static const unsigned int hscif1_ctrl_mux[] = {
+	HRTS1_N_MARK, HCTS1_N_MARK,
+};
+static const unsigned int hscif1_data_b_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(1, 17), RCAR_GP_PIN(1, 18),
+};
+static const unsigned int hscif1_data_b_mux[] = {
+	HRX1_B_MARK, HTX1_B_MARK,
+};
+static const unsigned int hscif1_data_c_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(7, 14), RCAR_GP_PIN(7, 15),
+};
+static const unsigned int hscif1_data_c_mux[] = {
+	HRX1_C_MARK, HTX1_C_MARK,
+};
+static const unsigned int hscif1_clk_c_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(7, 16),
+};
+static const unsigned int hscif1_clk_c_mux[] = {
+	HSCK1_C_MARK,
+};
+static const unsigned int hscif1_ctrl_c_pins[] = {
+	/* RTS, CTS */
+	RCAR_GP_PIN(7, 18), RCAR_GP_PIN(7, 17),
+};
+static const unsigned int hscif1_ctrl_c_mux[] = {
+	HRTS1_N_C_MARK, HCTS1_N_C_MARK,
+};
+static const unsigned int hscif1_data_d_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(4, 28), RCAR_GP_PIN(4, 18),
+};
+static const unsigned int hscif1_data_d_mux[] = {
+	HRX1_D_MARK, HTX1_D_MARK,
+};
+static const unsigned int hscif1_data_e_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(7, 14), RCAR_GP_PIN(7, 15),
+};
+static const unsigned int hscif1_data_e_mux[] = {
+	HRX1_C_MARK, HTX1_C_MARK,
+};
+static const unsigned int hscif1_clk_e_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(2, 6),
+};
+static const unsigned int hscif1_clk_e_mux[] = {
+	HSCK1_E_MARK,
+};
+static const unsigned int hscif1_ctrl_e_pins[] = {
+	/* RTS, CTS */
+	RCAR_GP_PIN(2, 8), RCAR_GP_PIN(2, 7),
+};
+static const unsigned int hscif1_ctrl_e_mux[] = {
+	HRTS1_N_E_MARK, HCTS1_N_E_MARK,
+};
+/* - HSCIF2 ----------------------------------------------------------------- */
+static const unsigned int hscif2_data_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(4, 16), RCAR_GP_PIN(4, 17),
+};
+static const unsigned int hscif2_data_mux[] = {
+	HRX2_MARK, HTX2_MARK,
+};
+static const unsigned int hscif2_clk_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(4, 15),
+};
+static const unsigned int hscif2_clk_mux[] = {
+	HSCK2_MARK,
+};
+static const unsigned int hscif2_ctrl_pins[] = {
+	/* RTS, CTS */
+	RCAR_GP_PIN(4, 14), RCAR_GP_PIN(4, 13),
+};
+static const unsigned int hscif2_ctrl_mux[] = {
+	HRTS2_N_MARK, HCTS2_N_MARK,
+};
+static const unsigned int hscif2_data_b_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(1, 20), RCAR_GP_PIN(1, 22),
+};
+static const unsigned int hscif2_data_b_mux[] = {
+	HRX2_B_MARK, HTX2_B_MARK,
+};
+static const unsigned int hscif2_ctrl_b_pins[] = {
+	/* RTS, CTS */
+	RCAR_GP_PIN(1, 23), RCAR_GP_PIN(1, 21),
+};
+static const unsigned int hscif2_ctrl_b_mux[] = {
+	HRTS2_N_B_MARK, HCTS2_N_B_MARK,
+};
+static const unsigned int hscif2_data_c_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(2, 0), RCAR_GP_PIN(2, 1),
+};
+static const unsigned int hscif2_data_c_mux[] = {
+	HRX2_C_MARK, HTX2_C_MARK,
+};
+static const unsigned int hscif2_clk_c_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(5, 31),
+};
+static const unsigned int hscif2_clk_c_mux[] = {
+	HSCK2_C_MARK,
+};
+static const unsigned int hscif2_data_d_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(1, 20), RCAR_GP_PIN(5, 31),
+};
+static const unsigned int hscif2_data_d_mux[] = {
+	HRX2_B_MARK, HTX2_D_MARK,
+};
 /* - I2C0 ------------------------------------------------------------------- */
 static const unsigned int i2c0_pins[] = {
 	/* SCL, SDA */
@@ -3885,6 +4071,32 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(eth_magic),
 	SH_PFC_PIN_GROUP(eth_mdio),
 	SH_PFC_PIN_GROUP(eth_rmii),
+	SH_PFC_PIN_GROUP(hscif0_data),
+	SH_PFC_PIN_GROUP(hscif0_clk),
+	SH_PFC_PIN_GROUP(hscif0_ctrl),
+	SH_PFC_PIN_GROUP(hscif0_data_b),
+	SH_PFC_PIN_GROUP(hscif0_ctrl_b),
+	SH_PFC_PIN_GROUP(hscif0_data_c),
+	SH_PFC_PIN_GROUP(hscif0_clk_c),
+	SH_PFC_PIN_GROUP(hscif1_data),
+	SH_PFC_PIN_GROUP(hscif1_clk),
+	SH_PFC_PIN_GROUP(hscif1_ctrl),
+	SH_PFC_PIN_GROUP(hscif1_data_b),
+	SH_PFC_PIN_GROUP(hscif1_data_c),
+	SH_PFC_PIN_GROUP(hscif1_clk_c),
+	SH_PFC_PIN_GROUP(hscif1_ctrl_c),
+	SH_PFC_PIN_GROUP(hscif1_data_d),
+	SH_PFC_PIN_GROUP(hscif1_data_e),
+	SH_PFC_PIN_GROUP(hscif1_clk_e),
+	SH_PFC_PIN_GROUP(hscif1_ctrl_e),
+	SH_PFC_PIN_GROUP(hscif2_data),
+	SH_PFC_PIN_GROUP(hscif2_clk),
+	SH_PFC_PIN_GROUP(hscif2_ctrl),
+	SH_PFC_PIN_GROUP(hscif2_data_b),
+	SH_PFC_PIN_GROUP(hscif2_ctrl_b),
+	SH_PFC_PIN_GROUP(hscif2_data_c),
+	SH_PFC_PIN_GROUP(hscif2_clk_c),
+	SH_PFC_PIN_GROUP(hscif2_data_d),
 	SH_PFC_PIN_GROUP(i2c0),
 	SH_PFC_PIN_GROUP(i2c0_b),
 	SH_PFC_PIN_GROUP(i2c0_c),
@@ -4183,6 +4395,41 @@ static const char * const eth_groups[] = {
 	"eth_rmii",
 };
 
+static const char * const hscif0_groups[] = {
+	"hscif0_data",
+	"hscif0_clk",
+	"hscif0_ctrl",
+	"hscif0_data_b",
+	"hscif0_ctrl_b",
+	"hscif0_data_c",
+	"hscif0_clk_c",
+};
+
+static const char * const hscif1_groups[] = {
+	"hscif1_data",
+	"hscif1_clk",
+	"hscif1_ctrl",
+	"hscif1_data_b",
+	"hscif1_data_c",
+	"hscif1_clk_c",
+	"hscif1_ctrl_c",
+	"hscif1_data_d",
+	"hscif1_data_e",
+	"hscif1_clk_e",
+	"hscif1_ctrl_e",
+};
+
+static const char * const hscif2_groups[] = {
+	"hscif2_data",
+	"hscif2_clk",
+	"hscif2_ctrl",
+	"hscif2_data_b",
+	"hscif2_ctrl_b",
+	"hscif2_data_c",
+	"hscif2_clk_c",
+	"hscif2_data_d",
+};
+
 static const char * const i2c0_groups[] = {
 	"i2c0",
 	"i2c0_b",
@@ -4547,6 +4794,9 @@ static const struct sh_pfc_function pinmux_functions[] = {
 	SH_PFC_FUNCTION(du0),
 	SH_PFC_FUNCTION(du1),
 	SH_PFC_FUNCTION(eth),
+	SH_PFC_FUNCTION(hscif0),
+	SH_PFC_FUNCTION(hscif1),
+	SH_PFC_FUNCTION(hscif2),
 	SH_PFC_FUNCTION(i2c0),
 	SH_PFC_FUNCTION(i2c1),
 	SH_PFC_FUNCTION(i2c2),
