diff --git a/src/southbridge/intel/bd82x6x/smbus.c b/src/southbridge/intel/bd82x6x/smbus.c
index b251596667..4255a47396 100644
--- a/src/southbridge/intel/bd82x6x/smbus.c
+++ b/src/southbridge/intel/bd82x6x/smbus.c
@@ -40,7 +40,7 @@ static int lsmbus_read_byte(struct device *dev, u8 address)
 	return do_smbus_read_byte(res->base, device, address);
 }
 
-static int lsmbus_write_byte(struct device *dev, u8 address, u8 val)
+static int lsmbus_write_byte(struct device *dev, u8 address, u8 data)
 {
 	u16 device;
 	struct resource *res;
@@ -50,7 +50,7 @@ static int lsmbus_write_byte(struct device *dev, u8 address, u8 val)
 	pbus = get_pbus_smbus(dev);
 	res = find_resource(pbus->dev, PCI_BASE_ADDRESS_4);
 
-	return do_smbus_write_byte(res->base, device, address, val);
+	return do_smbus_write_byte(res->base, device, address, data);
 }
 
 static struct smbus_bus_operations lops_smbus_bus = {
diff --git a/src/southbridge/intel/i82801ix/smbus.c b/src/southbridge/intel/i82801ix/smbus.c
index 72c3110990..4f46217a2a 100644
--- a/src/southbridge/intel/i82801ix/smbus.c
+++ b/src/southbridge/intel/i82801ix/smbus.c
@@ -29,7 +29,7 @@ static int lsmbus_read_byte(struct device *dev, u8 address)
 	return do_smbus_read_byte(res->base, device, address);
 }
 
-static int lsmbus_write_byte(struct device *dev, u8 address, u8 val)
+static int lsmbus_write_byte(struct device *dev, u8 address, u8 data)
 {
 	u16 device;
 	struct resource *res;
@@ -39,7 +39,7 @@ static int lsmbus_write_byte(struct device *dev, u8 address, u8 val)
 	pbus = get_pbus_smbus(dev);
 	res = find_resource(pbus->dev, PCI_BASE_ADDRESS_4);
 
-	return do_smbus_write_byte(res->base, device, address, val);
+	return do_smbus_write_byte(res->base, device, address, data);
 }
 
 static struct smbus_bus_operations lops_smbus_bus = {
diff --git a/src/southbridge/intel/i82801jx/smbus.c b/src/southbridge/intel/i82801jx/smbus.c
index c92a2864a0..c3a798a4e4 100644
--- a/src/southbridge/intel/i82801jx/smbus.c
+++ b/src/southbridge/intel/i82801jx/smbus.c
@@ -29,7 +29,7 @@ static int lsmbus_read_byte(struct device *dev, u8 address)
 	return do_smbus_read_byte(res->base, device, address);
 }
 
-static int lsmbus_write_byte(struct device *dev, u8 address, u8 val)
+static int lsmbus_write_byte(struct device *dev, u8 address, u8 data)
 {
 	u16 device;
 	struct resource *res;
@@ -39,7 +39,7 @@ static int lsmbus_write_byte(struct device *dev, u8 address, u8 val)
 	pbus = get_pbus_smbus(dev);
 	res = find_resource(pbus->dev, PCI_BASE_ADDRESS_4);
 
-	return do_smbus_write_byte(res->base, device, address, val);
+	return do_smbus_write_byte(res->base, device, address, data);
 }
 
 static int lsmbus_block_write(struct device *dev, u8 cmd, u8 bytes,
diff --git a/src/southbridge/intel/ibexpeak/smbus.c b/src/southbridge/intel/ibexpeak/smbus.c
index 56da504465..331021fab2 100644
--- a/src/southbridge/intel/ibexpeak/smbus.c
+++ b/src/southbridge/intel/ibexpeak/smbus.c
@@ -39,7 +39,7 @@ static int lsmbus_read_byte(struct device *dev, u8 address)
 	return do_smbus_read_byte(res->base, device, address);
 }
 
-static int lsmbus_write_byte(struct device *dev, u8 address, u8 val)
+static int lsmbus_write_byte(struct device *dev, u8 address, u8 data)
 {
 	u16 device;
 	struct resource *res;
@@ -49,7 +49,7 @@ static int lsmbus_write_byte(struct device *dev, u8 address, u8 val)
 	pbus = get_pbus_smbus(dev);
 	res = find_resource(pbus->dev, PCI_BASE_ADDRESS_4);
 
-	return do_smbus_write_byte(res->base, device, address, val);
+	return do_smbus_write_byte(res->base, device, address, data);
 }
 
 static struct smbus_bus_operations lops_smbus_bus = {