diff --git a/drivers/pinctrl/sh-pfc/sh_pfc.h b/drivers/pinctrl/sh-pfc/sh_pfc.h
index 8688b405e0813ad7e14c9746877bbe96303c7542..1914f4b5fef569b34c33de01a5ca0264d89a8bb2 100644
--- a/drivers/pinctrl/sh-pfc/sh_pfc.h
+++ b/drivers/pinctrl/sh-pfc/sh_pfc.h
@@ -148,6 +148,17 @@ struct pinmux_drive_reg {
 	.reg = r, \
 	.fields =
 
+struct pinmux_bias_reg {
+	u32 puen;		/* Pull-enable or pull-up control register */
+	u32 pud;		/* Pull-up/down control register (optional) */
+	const u16 pins[32];
+};
+
+#define PINMUX_BIAS_REG(name1, r1, name2, r2) \
+	.puen = r1,	\
+	.pud = r2,	\
+	.pins =
+
 struct pinmux_data_reg {
 	u32 reg;
 	u8 reg_width;
@@ -245,6 +256,7 @@ struct sh_pfc_soc_info {
 
 	const struct pinmux_cfg_reg *cfg_regs;
 	const struct pinmux_drive_reg *drive_regs;
+	const struct pinmux_bias_reg *bias_regs;
 	const struct pinmux_data_reg *data_regs;
 
 	const u16 *pinmux_data;