diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c
index add8e87..2b819c1 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c
@@ -46,7 +46,7 @@ struct uniphier_pinctrl_priv {
 	struct pinctrl_desc pctldesc;
 	struct pinctrl_dev *pctldev;
 	struct regmap *regmap;
-	struct uniphier_pinctrl_socdata *socdata;
+	const struct uniphier_pinctrl_socdata *socdata;
 	struct list_head reg_regions;
 };
 
@@ -869,7 +869,7 @@ const struct dev_pm_ops uniphier_pinctrl_pm_ops = {
 };
 
 int uniphier_pinctrl_probe(struct platform_device *pdev,
-			   struct uniphier_pinctrl_socdata *socdata)
+			   const struct uniphier_pinctrl_socdata *socdata)
 {
 	struct device *dev = &pdev->dev;
 	struct uniphier_pinctrl_priv *priv;
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-ld11.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-ld11.c
index 280dca7..7b61aa4 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-ld11.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-ld11.c
@@ -690,7 +690,7 @@ static int uniphier_ld11_get_gpio_muxval(unsigned int pin,
 	return 15;
 }
 
-static struct uniphier_pinctrl_socdata uniphier_ld11_pindata = {
+static const struct uniphier_pinctrl_socdata uniphier_ld11_pindata = {
 	.pins = uniphier_ld11_pins,
 	.npins = ARRAY_SIZE(uniphier_ld11_pins),
 	.groups = uniphier_ld11_groups,
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-ld20.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-ld20.c
index d2d56c9..9850f24 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-ld20.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-ld20.c
@@ -795,7 +795,7 @@ static int uniphier_ld20_get_gpio_muxval(unsigned int pin,
 	return 15;
 }
 
-static struct uniphier_pinctrl_socdata uniphier_ld20_pindata = {
+static const struct uniphier_pinctrl_socdata uniphier_ld20_pindata = {
 	.pins = uniphier_ld20_pins,
 	.npins = ARRAY_SIZE(uniphier_ld20_pins),
 	.groups = uniphier_ld20_groups,
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-ld4.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-ld4.c
index 03d87ad..b75844d 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-ld4.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-ld4.c
@@ -723,7 +723,7 @@ static int uniphier_ld4_get_gpio_muxval(unsigned int pin,
 	}
 }
 
-static struct uniphier_pinctrl_socdata uniphier_ld4_pindata = {
+static const struct uniphier_pinctrl_socdata uniphier_ld4_pindata = {
 	.pins = uniphier_ld4_pins,
 	.npins = ARRAY_SIZE(uniphier_ld4_pins),
 	.groups = uniphier_ld4_groups,
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-ld6b.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-ld6b.c
index 31f36ea..9fc2e29 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-ld6b.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-ld6b.c
@@ -938,7 +938,7 @@ static int uniphier_ld6b_get_gpio_muxval(unsigned int pin,
 	return 15;
 }
 
-static struct uniphier_pinctrl_socdata uniphier_ld6b_pindata = {
+static const struct uniphier_pinctrl_socdata uniphier_ld6b_pindata = {
 	.pins = uniphier_ld6b_pins,
 	.npins = ARRAY_SIZE(uniphier_ld6b_pins),
 	.groups = uniphier_ld6b_groups,
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c
index 4326f5c..0de0576 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c
@@ -1232,7 +1232,7 @@ static int uniphier_pro4_get_gpio_muxval(unsigned int pin,
 	return 7;
 }
 
-static struct uniphier_pinctrl_socdata uniphier_pro4_pindata = {
+static const struct uniphier_pinctrl_socdata uniphier_pro4_pindata = {
 	.pins = uniphier_pro4_pins,
 	.npins = ARRAY_SIZE(uniphier_pro4_pins),
 	.groups = uniphier_pro4_groups,
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-pro5.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-pro5.c
index ae79815..2902ef4 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-pro5.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-pro5.c
@@ -996,7 +996,7 @@ static int uniphier_pro5_get_gpio_muxval(unsigned int pin,
 	return 15;
 }
 
-static struct uniphier_pinctrl_socdata uniphier_pro5_pindata = {
+static const struct uniphier_pinctrl_socdata uniphier_pro5_pindata = {
 	.pins = uniphier_pro5_pins,
 	.npins = ARRAY_SIZE(uniphier_pro5_pins),
 	.groups = uniphier_pro5_groups,
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-pxs2.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-pxs2.c
index 7975bd7..42e226b 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-pxs2.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-pxs2.c
@@ -960,7 +960,7 @@ static int uniphier_pxs2_get_gpio_muxval(unsigned int pin,
 	return 15;
 }
 
-static struct uniphier_pinctrl_socdata uniphier_pxs2_pindata = {
+static const struct uniphier_pinctrl_socdata uniphier_pxs2_pindata = {
 	.pins = uniphier_pxs2_pins,
 	.npins = ARRAY_SIZE(uniphier_pxs2_pins),
 	.groups = uniphier_pxs2_groups,
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-pxs3.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-pxs3.c
index b16ce28..26c6867 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-pxs3.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-pxs3.c
@@ -971,7 +971,7 @@ static int uniphier_pxs3_get_gpio_muxval(unsigned int pin,
 	return 15;
 }
 
-static struct uniphier_pinctrl_socdata uniphier_pxs3_pindata = {
+static const struct uniphier_pinctrl_socdata uniphier_pxs3_pindata = {
 	.pins = uniphier_pxs3_pins,
 	.npins = ARRAY_SIZE(uniphier_pxs3_pins),
 	.groups = uniphier_pxs3_groups,
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-sld8.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-sld8.c
index cb44568..d7f15c6 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-sld8.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-sld8.c
@@ -652,7 +652,7 @@ static int uniphier_sld8_get_gpio_muxval(unsigned int pin,
 	}
 }
 
-static struct uniphier_pinctrl_socdata uniphier_sld8_pindata = {
+static const struct uniphier_pinctrl_socdata uniphier_sld8_pindata = {
 	.pins = uniphier_sld8_pins,
 	.npins = ARRAY_SIZE(uniphier_sld8_pins),
 	.groups = uniphier_sld8_groups,
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier.h b/drivers/pinctrl/uniphier/pinctrl-uniphier.h
index c63e3c8..1f32bea 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier.h
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier.h
@@ -190,7 +190,7 @@ struct uniphier_pinctrl_socdata {
 	}
 
 int uniphier_pinctrl_probe(struct platform_device *pdev,
-			   struct uniphier_pinctrl_socdata *socdata);
+			   const struct uniphier_pinctrl_socdata *socdata);
 
 extern const struct dev_pm_ops uniphier_pinctrl_pm_ops;
 
