diff --git a/drivers/pinctrl/sh-pfc/core.c b/drivers/pinctrl/sh-pfc/core.c
index f3a8897d4e8f407f04980c8c404b0e5c4643ec2e..cf80ce1dd7cea5a0fdd9c524a6c5a03e1d93e0f2 100644
--- a/drivers/pinctrl/sh-pfc/core.c
+++ b/drivers/pinctrl/sh-pfc/core.c
@@ -389,6 +389,21 @@ int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type)
 	return 0;
 }
 
+const struct sh_pfc_bias_info *
+sh_pfc_pin_to_bias_info(const struct sh_pfc_bias_info *info,
+			unsigned int num, unsigned int pin)
+{
+	unsigned int i;
+
+	for (i = 0; i < num; i++)
+		if (info[i].pin == pin)
+			return &info[i];
+
+	WARN_ONCE(1, "Pin %u is not in bias info list\n", pin);
+
+	return NULL;
+}
+
 static int sh_pfc_init_ranges(struct sh_pfc *pfc)
 {
 	struct sh_pfc_pin_range *range;
diff --git a/drivers/pinctrl/sh-pfc/core.h b/drivers/pinctrl/sh-pfc/core.h
index 0bbdea5849f41713a135b5dd3ae6bc810717e2b3..6d598dd63720856774c0f7b2267f631fc67204a0 100644
--- a/drivers/pinctrl/sh-pfc/core.h
+++ b/drivers/pinctrl/sh-pfc/core.h
@@ -33,4 +33,8 @@ void sh_pfc_write_reg(struct sh_pfc *pfc, u32 reg, unsigned int width,
 int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin);
 int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type);
 
+const struct sh_pfc_bias_info *
+sh_pfc_pin_to_bias_info(const struct sh_pfc_bias_info *info,
+			unsigned int num, unsigned int pin);
+
 #endif /* __SH_PFC_CORE_H__ */
diff --git a/drivers/pinctrl/sh-pfc/sh_pfc.h b/drivers/pinctrl/sh-pfc/sh_pfc.h
index 2345421103db342e537187380f088240e3b1bf59..9556c172e3d2085cc846c976e62c15d8fb9cd5cb 100644
--- a/drivers/pinctrl/sh-pfc/sh_pfc.h
+++ b/drivers/pinctrl/sh-pfc/sh_pfc.h
@@ -189,6 +189,12 @@ struct sh_pfc_window {
 	unsigned long size;
 };
 
+struct sh_pfc_bias_info {
+	u16 pin;
+	u16 reg : 11;
+	u16 bit : 5;
+};
+
 struct sh_pfc_pin_range;
 
 struct sh_pfc {