diff --git a/drivers/pinctrl/sh-pfc/core.c b/drivers/pinctrl/sh-pfc/core.c
index 5591baf..c33e247 100644
--- a/drivers/pinctrl/sh-pfc/core.c
+++ b/drivers/pinctrl/sh-pfc/core.c
@@ -144,7 +144,7 @@
 	return 1;
 }
 
-u32 sh_pfc_read_raw_reg(void __iomem *mapped_reg, unsigned long reg_width)
+u32 sh_pfc_read_raw_reg(void __iomem *mapped_reg, unsigned int reg_width)
 {
 	switch (reg_width) {
 	case 8:
@@ -159,7 +159,7 @@
 	return 0;
 }
 
-void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned long reg_width,
+void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned int reg_width,
 			  u32 data)
 {
 	switch (reg_width) {
@@ -179,9 +179,9 @@
 
 static void sh_pfc_config_reg_helper(struct sh_pfc *pfc,
 				     const struct pinmux_cfg_reg *crp,
-				     unsigned long in_pos,
+				     unsigned int in_pos,
 				     void __iomem **mapped_regp, u32 *maskp,
-				     unsigned long *posp)
+				     unsigned int *posp)
 {
 	unsigned int k;
 
@@ -200,15 +200,15 @@
 
 static void sh_pfc_write_config_reg(struct sh_pfc *pfc,
 				    const struct pinmux_cfg_reg *crp,
-				    unsigned long field, u32 value)
+				    unsigned int field, u32 value)
 {
 	void __iomem *mapped_reg;
-	unsigned long pos;
+	unsigned int pos;
 	u32 mask, data;
 
 	sh_pfc_config_reg_helper(pfc, crp, field, &mapped_reg, &mask, &pos);
 
-	dev_dbg(pfc->dev, "write_reg addr = %lx, value = 0x%x, field = %ld, "
+	dev_dbg(pfc->dev, "write_reg addr = %lx, value = 0x%x, field = %u, "
 		"r_width = %u, f_width = %u\n",
 		crp->reg, value, field, crp->reg_width, crp->field_width);
 
@@ -228,27 +228,28 @@
 }
 
 static int sh_pfc_get_config_reg(struct sh_pfc *pfc, u16 enum_id,
-				 const struct pinmux_cfg_reg **crp, int *fieldp,
-				 u32 *valuep)
+				 const struct pinmux_cfg_reg **crp,
+				 unsigned int *fieldp, u32 *valuep)
 {
-	const struct pinmux_cfg_reg *config_reg;
-	unsigned long r_width, f_width, curr_width;
-	unsigned int k, m, pos, bit_pos;
-	u32 ncomb, n;
+	unsigned int k = 0;
 
-	k = 0;
 	while (1) {
-		config_reg = pfc->info->cfg_regs + k;
-
-		r_width = config_reg->reg_width;
-		f_width = config_reg->field_width;
+		const struct pinmux_cfg_reg *config_reg =
+			pfc->info->cfg_regs + k;
+		unsigned int r_width = config_reg->reg_width;
+		unsigned int f_width = config_reg->field_width;
+		unsigned int curr_width;
+		unsigned int bit_pos;
+		unsigned int pos = 0;
+		unsigned int m = 0;
 
 		if (!r_width)
 			break;
 
-		pos = 0;
-		m = 0;
 		for (bit_pos = 0; bit_pos < r_width; bit_pos += curr_width) {
+			u32 ncomb;
+			u32 n;
+
 			if (f_width)
 				curr_width = f_width;
 			else
@@ -297,12 +298,8 @@
 
 int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type)
 {
-	const struct pinmux_cfg_reg *cr = NULL;
-	u16 enum_id;
 	const struct pinmux_range *range;
-	int in_range, pos, field;
-	u32 value;
-	int ret;
+	int pos = 0;
 
 	switch (pinmux_type) {
 	case PINMUX_TYPE_GPIO:
@@ -322,13 +319,15 @@
 		return -EINVAL;
 	}
 
-	pos = 0;
-	enum_id = 0;
-	field = 0;
-	value = 0;
-
 	/* Iterate over all the configuration fields we need to update. */
 	while (1) {
+		const struct pinmux_cfg_reg *cr;
+		unsigned int field;
+		u16 enum_id;
+		u32 value;
+		int in_range;
+		int ret;
+
 		pos = sh_pfc_mark_to_enum(pfc, mark, pos, &enum_id);
 		if (pos < 0)
 			return pos;
diff --git a/drivers/pinctrl/sh-pfc/core.h b/drivers/pinctrl/sh-pfc/core.h
index 8a10dd5..6dc8a6f 100644
--- a/drivers/pinctrl/sh-pfc/core.h
+++ b/drivers/pinctrl/sh-pfc/core.h
@@ -57,8 +57,8 @@
 int sh_pfc_register_pinctrl(struct sh_pfc *pfc);
 int sh_pfc_unregister_pinctrl(struct sh_pfc *pfc);
 
-u32 sh_pfc_read_raw_reg(void __iomem *mapped_reg, unsigned long reg_width);
-void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned long reg_width,
+u32 sh_pfc_read_raw_reg(void __iomem *mapped_reg, unsigned int reg_width);
+void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned int reg_width,
 			  u32 data);
 
 int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin);
diff --git a/drivers/pinctrl/sh-pfc/gpio.c b/drivers/pinctrl/sh-pfc/gpio.c
index f2bb7d7..aa2fc77 100644
--- a/drivers/pinctrl/sh-pfc/gpio.c
+++ b/drivers/pinctrl/sh-pfc/gpio.c
@@ -153,8 +153,8 @@
 			       int value)
 {
 	struct sh_pfc_gpio_data_reg *reg;
-	unsigned long pos;
 	unsigned int bit;
+	unsigned int pos;
 
 	gpio_get_data_reg(chip, offset, &reg, &bit);
 
@@ -185,8 +185,8 @@
 {
 	struct sh_pfc_chip *chip = gpio_to_pfc_chip(gc);
 	struct sh_pfc_gpio_data_reg *reg;
-	unsigned long pos;
 	unsigned int bit;
+	unsigned int pos;
 
 	gpio_get_data_reg(chip, offset, &reg, &bit);