diff --git a/src/drivers/i2c/designware/dw_i2c.h b/src/drivers/i2c/designware/dw_i2c.h
index 8fea4e1c9b..83e0e6d5e6 100644
--- a/src/drivers/i2c/designware/dw_i2c.h
+++ b/src/drivers/i2c/designware/dw_i2c.h
@@ -79,7 +79,7 @@ struct dw_i2c_bus_config {
 /* Functions to be implemented by SoC code */
 
 /* Get base address for early init of I2C controllers. */
-uintptr_t i2c_get_soc_early_base(unsigned int bus);
+uintptr_t dw_i2c_get_soc_early_base(unsigned int bus);
 
 /*
  * Map given I2C bus number to devfn.
@@ -87,7 +87,7 @@ uintptr_t i2c_get_soc_early_base(unsigned int bus);
  * -1 = error
  * otherwise, devfn(>=0) corresponding to I2C bus number.
  */
-int i2c_soc_devfn_to_bus(unsigned int devfn);
+int dw_i2c_soc_devfn_to_bus(unsigned int devfn);
 
 /*
  * Map given bus number to a I2C Controller.
@@ -95,14 +95,14 @@ int i2c_soc_devfn_to_bus(unsigned int devfn);
  * -1 = error
  * otherwise, devfn(>=0) corresponding to I2C bus number.
  */
-int i2c_soc_bus_to_devfn(unsigned int bus);
+int dw_i2c_soc_bus_to_devfn(unsigned int bus);
 
 /*
  * SoC implemented callback for getting I2C bus configuration.
  *
  * Returns NULL if i2c config is not found
  */
-const struct dw_i2c_bus_config *i2c_get_soc_cfg(unsigned int bus,
+const struct dw_i2c_bus_config *dw_i2c_get_soc_cfg(unsigned int bus,
 						const struct device *dev);
 
 /* Get I2C controller base address */
diff --git a/src/soc/intel/apollolake/i2c.c b/src/soc/intel/apollolake/i2c.c
index 5925f3d22c..bcaf740fe6 100644
--- a/src/soc/intel/apollolake/i2c.c
+++ b/src/soc/intel/apollolake/i2c.c
@@ -21,7 +21,7 @@
 #include <soc/pci_devs.h>
 #include "chip.h"
 
-const struct dw_i2c_bus_config *i2c_get_soc_cfg(unsigned int bus,
+const struct dw_i2c_bus_config *dw_i2c_get_soc_cfg(unsigned int bus,
 					const struct device *dev)
 {
 	const struct soc_intel_apollolake_config *config;
@@ -36,13 +36,13 @@ const struct dw_i2c_bus_config *i2c_get_soc_cfg(unsigned int bus,
 	return &config->i2c[bus];
 }
 
-uintptr_t i2c_get_soc_early_base(unsigned int bus)
+uintptr_t dw_i2c_get_soc_early_base(unsigned int bus)
 {
 	return PRERAM_I2C_BASE_ADDRESS(bus);
 }
 
 /* Convert I2C bus number to PCI device and function */
-int i2c_soc_bus_to_devfn(unsigned int bus)
+int dw_i2c_soc_bus_to_devfn(unsigned int bus)
 {
 	if (bus <= 3)
 		return PCI_DEVFN(PCH_DEV_SLOT_SIO1, bus);
@@ -53,7 +53,7 @@ int i2c_soc_bus_to_devfn(unsigned int bus)
 }
 
 /* Convert PCI device and function to I2C bus number */
-int i2c_soc_devfn_to_bus(unsigned int devfn)
+int dw_i2c_soc_devfn_to_bus(unsigned int devfn)
 {
 	if (PCI_SLOT(devfn) == PCH_DEV_SLOT_SIO1)
 		return PCI_FUNC(devfn);
diff --git a/src/soc/intel/cannonlake/i2c.c b/src/soc/intel/cannonlake/i2c.c
index 03ced5f936..f183253443 100644
--- a/src/soc/intel/cannonlake/i2c.c
+++ b/src/soc/intel/cannonlake/i2c.c
@@ -22,7 +22,7 @@
 #include <soc/pci_devs.h>
 #include "chip.h"
 
-const struct dw_i2c_bus_config *i2c_get_soc_cfg(unsigned int bus,
+const struct dw_i2c_bus_config *dw_i2c_get_soc_cfg(unsigned int bus,
 					const struct device *dev)
 {
 	const struct soc_intel_cannonlake_config *config;
@@ -37,12 +37,12 @@ const struct dw_i2c_bus_config *i2c_get_soc_cfg(unsigned int bus,
 	return &config->i2c[bus];
 }
 
-uintptr_t i2c_get_soc_early_base(unsigned int bus)
+uintptr_t dw_i2c_get_soc_early_base(unsigned int bus)
 {
 	return EARLY_I2C_BASE(bus);
 }
 
-int i2c_soc_devfn_to_bus(unsigned int devfn)
+int dw_i2c_soc_devfn_to_bus(unsigned int devfn)
 {
 	switch (devfn) {
 	case PCH_DEVFN_I2C0:
@@ -61,7 +61,7 @@ int i2c_soc_devfn_to_bus(unsigned int devfn)
 	return -1;
 }
 
-int i2c_soc_bus_to_devfn(unsigned int bus)
+int dw_i2c_soc_bus_to_devfn(unsigned int bus)
 {
 	switch (bus) {
 	case 0:
diff --git a/src/soc/intel/common/block/i2c/i2c.c b/src/soc/intel/common/block/i2c/i2c.c
index f2154da3f6..4b2b4eb5a8 100644
--- a/src/soc/intel/common/block/i2c/i2c.c
+++ b/src/soc/intel/common/block/i2c/i2c.c
@@ -27,7 +27,7 @@ uintptr_t dw_i2c_base_address(unsigned int bus)
 	struct resource *res;
 
 	/* bus -> devfn */
-	devfn = i2c_soc_bus_to_devfn(bus);
+	devfn = dw_i2c_soc_bus_to_devfn(bus);
 
 	if (devfn < 0)
 		return (uintptr_t)NULL;
@@ -48,7 +48,7 @@ uintptr_t dw_i2c_base_address(unsigned int bus)
 static int lpss_i2c_dev_to_bus(struct device *dev)
 {
 	pci_devfn_t devfn = dev->path.pci.devfn;
-	return i2c_soc_devfn_to_bus(devfn);
+	return dw_i2c_soc_devfn_to_bus(devfn);
 }
 
 /*
@@ -98,7 +98,7 @@ static void lpss_i2c_dev_init(struct device *dev)
 	if (bus < 0)
 		return;
 
-	config = i2c_get_soc_cfg(bus, dev);
+	config = dw_i2c_get_soc_cfg(bus, dev);
 
 	if (!config)
 		return;
@@ -132,7 +132,7 @@ static void lpss_i2c_acpi_fill_ssdt(struct device *dev)
 	if (bus < 0)
 		return;
 
-	bcfg = i2c_get_soc_cfg(bus, dev);
+	bcfg = dw_i2c_get_soc_cfg(bus, dev);
 
 	if (!bcfg)
 		return;
diff --git a/src/soc/intel/common/block/i2c/i2c_early.c b/src/soc/intel/common/block/i2c/i2c_early.c
index f10147ed95..728e7880b5 100644
--- a/src/soc/intel/common/block/i2c/i2c_early.c
+++ b/src/soc/intel/common/block/i2c/i2c_early.c
@@ -32,7 +32,7 @@ static int lpss_i2c_early_init_bus(unsigned int bus)
 	uintptr_t base;
 
 	/* Find the PCI device for this bus controller */
-	devfn = i2c_soc_bus_to_devfn(bus);
+	devfn = dw_i2c_soc_bus_to_devfn(bus);
 	if (devfn < 0) {
 		printk(BIOS_ERR, "I2C%u device not found\n", bus);
 		return -1;
@@ -47,14 +47,14 @@ static int lpss_i2c_early_init_bus(unsigned int bus)
 	}
 
 	/* Skip if not enabled for early init */
-	config = i2c_get_soc_cfg(bus, tree_dev);
+	config = dw_i2c_get_soc_cfg(bus, tree_dev);
 	if (!config || !config->early_init) {
 		printk(BIOS_DEBUG, "I2C%u not enabled for early init\n", bus);
 		return -1;
 	}
 
 	/* Prepare early base address for access before memory */
-	base = i2c_get_soc_early_base(bus);
+	base = dw_i2c_get_soc_early_base(bus);
 	pci_write_config32(dev, PCI_BASE_ADDRESS_0, base);
 	pci_write_config32(dev, PCI_COMMAND,
 			   PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
@@ -78,7 +78,7 @@ uintptr_t dw_i2c_base_address(unsigned int bus)
 	uintptr_t base;
 
 	/* Find device+function for this controller */
-	devfn = i2c_soc_bus_to_devfn(bus);
+	devfn = dw_i2c_soc_bus_to_devfn(bus);
 	if (devfn < 0)
 		return (uintptr_t)NULL;
 
diff --git a/src/soc/intel/skylake/i2c.c b/src/soc/intel/skylake/i2c.c
index 6b457ce62c..56260d702f 100644
--- a/src/soc/intel/skylake/i2c.c
+++ b/src/soc/intel/skylake/i2c.c
@@ -20,7 +20,7 @@
 #include <soc/pci_devs.h>
 #include "chip.h"
 
-const struct dw_i2c_bus_config *i2c_get_soc_cfg(unsigned int bus,
+const struct dw_i2c_bus_config *dw_i2c_get_soc_cfg(unsigned int bus,
 					const struct device *dev)
 {
 	const struct soc_intel_skylake_config *config;
@@ -35,12 +35,12 @@ const struct dw_i2c_bus_config *i2c_get_soc_cfg(unsigned int bus,
 	return &config->i2c[bus];
 }
 
-uintptr_t i2c_get_soc_early_base(unsigned int bus)
+uintptr_t dw_i2c_get_soc_early_base(unsigned int bus)
 {
 	return EARLY_I2C_BASE(bus);
 }
 
-int i2c_soc_devfn_to_bus(unsigned int devfn)
+int dw_i2c_soc_devfn_to_bus(unsigned int devfn)
 {
 	switch (devfn) {
 	case PCH_DEVFN_I2C0:
@@ -59,7 +59,7 @@ int i2c_soc_devfn_to_bus(unsigned int devfn)
 	return -1;
 }
 
-int i2c_soc_bus_to_devfn(unsigned int bus)
+int dw_i2c_soc_bus_to_devfn(unsigned int bus)
 {
 	switch (bus) {
 	case 0: