diff --git a/drivers/misc/ds1682.c b/drivers/misc/ds1682.c
index cb09e056531a..4e42a45c17d4 100644
--- a/drivers/misc/ds1682.c
+++ b/drivers/misc/ds1682.c
@@ -209,7 +209,7 @@ static int ds1682_nvmem_read(void *priv, unsigned int offset, void *val,
 	return ret < 0 ? ret : 0;
 }
 
-static int ds1682_nvmem_write(void *priv, unsigned int offset, void *val,
+static int ds1682_nvmem_write(void *priv, unsigned int offset, const void *val,
 			      size_t bytes)
 {
 	struct i2c_client *client = priv;
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index 772c4d9fa651..cd38cf8aad45 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -477,11 +477,11 @@ static int at24_read(void *priv, unsigned int off, void *val, size_t count)
 	return 0;
 }
 
-static int at24_write(void *priv, unsigned int off, void *val, size_t count)
+static int at24_write(void *priv, unsigned int off, const void *val, size_t count)
 {
 	struct at24_data *at24;
 	struct device *dev;
-	char *buf = val;
+	const char *buf = val;
 	int ret;
 
 	at24 = priv;
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index bc2cfb75d9bb..28f1dc1b9be7 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -235,7 +235,7 @@ static int at25_wait_ready(struct at25_data *at25)
 	return bounce[0];
 }
 
-static int at25_ee_write(void *priv, unsigned int off, void *val, size_t count)
+static int at25_ee_write(void *priv, unsigned int off, const void *val, size_t count)
 {
 	u8 *bounce __free(kfree) = kmalloc(min(count, io_limit), GFP_KERNEL);
 	struct at25_data *at25 = priv;
diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c
index f9c3ab52c2f9..813f295af096 100644
--- a/drivers/misc/eeprom/eeprom_93xx46.c
+++ b/drivers/misc/eeprom/eeprom_93xx46.c
@@ -268,10 +268,10 @@ eeprom_93xx46_write_word(struct eeprom_93xx46_dev *edev,
 }
 
 static int eeprom_93xx46_write(void *priv, unsigned int off,
-				   void *val, size_t count)
+			       const void *val, size_t count)
 {
 	struct eeprom_93xx46_dev *edev = priv;
-	char *buf = val;
+	const char *buf = val;
 	int ret, step = 1;
 	unsigned int i;
 
diff --git a/drivers/misc/eeprom/m24lr.c b/drivers/misc/eeprom/m24lr.c
index 7a9fd45a8e46..22f3221e232b 100644
--- a/drivers/misc/eeprom/m24lr.c
+++ b/drivers/misc/eeprom/m24lr.c
@@ -374,7 +374,7 @@ static int m24lr_nvmem_read(void *priv, unsigned int offset, void *val,
 	return 0;
 }
 
-static int m24lr_nvmem_write(void *priv, unsigned int offset, void *val,
+static int m24lr_nvmem_write(void *priv, unsigned int offset, const void *val,
 			     size_t bytes)
 {
 	ssize_t err;
diff --git a/drivers/misc/keba/cp500.c b/drivers/misc/keba/cp500.c
index 6c65fbf22e75..ee7889cb63a8 100644
--- a/drivers/misc/keba/cp500.c
+++ b/drivers/misc/keba/cp500.c
@@ -590,7 +590,7 @@ static int cp500_nvmem_read(void *priv, unsigned int offset, void *val,
 	return 0;
 }
 
-static int cp500_nvmem_write(void *priv, unsigned int offset, void *val,
+static int cp500_nvmem_write(void *priv, unsigned int offset, const void *val,
 			     size_t bytes)
 {
 	struct cp500_nvmem *nvmem = priv;
diff --git a/drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_otpe2p.c b/drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_otpe2p.c
index a2ed477e0370..f2759e9b4138 100644
--- a/drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_otpe2p.c
+++ b/drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_otpe2p.c
@@ -159,11 +159,11 @@ static int pci1xxxx_eeprom_read(void *priv_t, unsigned int off,
 }
 
 static int pci1xxxx_eeprom_write(void *priv_t, unsigned int off,
-				 void *value_t, size_t count)
+				 const void *value_t, size_t count)
 {
 	struct pci1xxxx_otp_eeprom_device *priv = priv_t;
 	void __iomem *rb = priv->reg_base;
-	char *value = value_t;
+	const char *value = value_t;
 	u32 regval;
 	u32 byte;
 	int ret;
@@ -262,11 +262,11 @@ static int pci1xxxx_otp_read(void *priv_t, unsigned int off,
 }
 
 static int pci1xxxx_otp_write(void *priv_t, unsigned int off,
-			      void *value_t, size_t count)
+			      const void *value_t, size_t count)
 {
 	struct pci1xxxx_otp_eeprom_device *priv = priv_t;
 	void __iomem *rb = priv->reg_base;
-	char *value = value_t;
+	const char *value = value_t;
 	u32 regval;
 	u32 byte;
 	int ret;