{northbridge, soc, southbridge}/intel: Make use of pci_dev_set_subsystem()

This patch removes local definitions of sub_system function and make use
of common function pci_dev_set_subsystem().

Change-Id: I91982597fdf586ab514bec3d8e4d09f2565fe56d
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31982
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: David Guckian
Reviewed-by: Furquan Shaikh <furquan@google.com>

47 files changed, 47 insertions, 570 deletions

diff --git a/src/southbridge/intel/bd82x6x/azalia.c b/src/southbridge/intel/bd82x6x/azalia.c
index 0cc9efa133..8d424b8ba6 100644
--- a/src/southbridge/intel/bd82x6x/azalia.c
+++ b/src/southbridge/intel/bd82x6x/azalia.c
@@ -336,20 +336,8 @@ static const char *azalia_acpi_name(const struct device *dev)
 	return "HDEF";
 }
 
-static void azalia_set_subsystem(struct device *dev, unsigned vendor,
-				 unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations azalia_pci_ops = {
-	.set_subsystem    = azalia_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations azalia_ops = {
diff --git a/src/southbridge/intel/bd82x6x/lpc.c b/src/southbridge/intel/bd82x6x/lpc.c
index f22be9ed12..eda16da6f7 100644
--- a/src/southbridge/intel/bd82x6x/lpc.c
+++ b/src/southbridge/intel/bd82x6x/lpc.c
@@ -694,17 +694,6 @@ static void pch_lpc_enable(struct device *dev)
 	pch_enable(dev);
 }
 
-static void set_subsystem(struct device *dev, unsigned vendor, unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static void southbridge_inject_dsdt(struct device *dev)
 {
 	global_nvs_t *gnvs = cbmem_add (CBMEM_ID_ACPI_GNVS, sizeof(*gnvs));
@@ -924,7 +913,7 @@ static void lpc_final(struct device *dev)
 }
 
 static struct pci_operations pci_ops = {
-	.set_subsystem = set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations device_ops = {
diff --git a/src/southbridge/intel/bd82x6x/me.c b/src/southbridge/intel/bd82x6x/me.c
index 5731b9bcd0..1670091055 100644
--- a/src/southbridge/intel/bd82x6x/me.c
+++ b/src/southbridge/intel/bd82x6x/me.c
@@ -735,19 +735,8 @@ static void intel_me_init(struct device *dev)
 	}
 }
 
-static void set_subsystem(struct device *dev, unsigned vendor, unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-			   pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-			   ((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations pci_ops = {
-	.set_subsystem = set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations device_ops = {
diff --git a/src/southbridge/intel/bd82x6x/me_8.x.c b/src/southbridge/intel/bd82x6x/me_8.x.c
index a6ffe896c4..954353698d 100644
--- a/src/southbridge/intel/bd82x6x/me_8.x.c
+++ b/src/southbridge/intel/bd82x6x/me_8.x.c
@@ -738,19 +738,8 @@ static void intel_me_init(struct device *dev)
 	}
 }
 
-static void set_subsystem(struct device *dev, unsigned vendor, unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-			   pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-			   ((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations pci_ops = {
-	.set_subsystem = set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations device_ops = {
diff --git a/src/southbridge/intel/bd82x6x/sata.c b/src/southbridge/intel/bd82x6x/sata.c
index 3ee0a5983b..91c87bf26e 100644
--- a/src/southbridge/intel/bd82x6x/sata.c
+++ b/src/southbridge/intel/bd82x6x/sata.c
@@ -234,18 +234,6 @@ static void sata_enable(struct device *dev)
 	pci_write_config16(dev, 0x90, map);
 }
 
-static void sata_set_subsystem(struct device *dev, unsigned vendor,
-			       unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static const char *sata_acpi_name(const struct device *dev)
 {
 	return "SATA";
@@ -258,7 +246,7 @@ static void sata_fill_ssdt(struct device *dev)
 }
 
 static struct pci_operations sata_pci_ops = {
-	.set_subsystem    = sata_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations sata_ops = {
diff --git a/src/southbridge/intel/bd82x6x/smbus.c b/src/southbridge/intel/bd82x6x/smbus.c
index 908380626c..4fb7539889 100644
--- a/src/southbridge/intel/bd82x6x/smbus.c
+++ b/src/southbridge/intel/bd82x6x/smbus.c
@@ -71,20 +71,8 @@ static struct smbus_bus_operations lops_smbus_bus = {
 	.write_byte	= lsmbus_write_byte,
 };
 
-static void smbus_set_subsystem(struct device *dev, unsigned vendor,
-				unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations smbus_pci_ops = {
-	.set_subsystem    = smbus_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static void smbus_read_resources(struct device *dev)
diff --git a/src/southbridge/intel/bd82x6x/usb_ehci.c b/src/southbridge/intel/bd82x6x/usb_ehci.c
index 6cf4c1061b..8fe3e41d6d 100644
--- a/src/southbridge/intel/bd82x6x/usb_ehci.c
+++ b/src/southbridge/intel/bd82x6x/usb_ehci.c
@@ -84,13 +84,7 @@ static void usb_ehci_set_subsystem(struct device *dev, unsigned vendor,
 	/* Enable writes to protected registers. */
 	pci_write_config8(dev, 0x80, access_cntl | 1);
 
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
+	pci_dev_set_subsystem(dev, vendor, device);
 
 	/* Restore protection. */
 	pci_write_config8(dev, 0x80, access_cntl);
diff --git a/src/southbridge/intel/bd82x6x/usb_xhci.c b/src/southbridge/intel/bd82x6x/usb_xhci.c
index 07d74e0248..85e450db5b 100644
--- a/src/southbridge/intel/bd82x6x/usb_xhci.c
+++ b/src/southbridge/intel/bd82x6x/usb_xhci.c
@@ -56,20 +56,8 @@ static const char *xhci_acpi_name(const struct device *dev)
 	return "XHC";
 }
 
-static void xhci_set_subsystem(struct device *dev, unsigned vendor,
-			       unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations xhci_pci_ops = {
-	.set_subsystem		= xhci_set_subsystem,
+	.set_subsystem		= pci_dev_set_subsystem,
 };
 
 static struct device_operations usb_xhci_ops = {
diff --git a/src/southbridge/intel/fsp_rangeley/lpc.c b/src/southbridge/intel/fsp_rangeley/lpc.c
index 711778e125..4118e5fded 100644
--- a/src/southbridge/intel/fsp_rangeley/lpc.c
+++ b/src/southbridge/intel/fsp_rangeley/lpc.c
@@ -417,17 +417,6 @@ static void soc_lpc_enable(struct device *dev)
 	soc_enable(dev);
 }
 
-static void set_subsystem(struct device *dev, unsigned vendor, unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static void southbridge_inject_dsdt(struct device *dev)
 {
 	global_nvs_t *gnvs = cbmem_add (CBMEM_ID_ACPI_GNVS, sizeof(*gnvs));
@@ -448,7 +437,7 @@ static void southbridge_inject_dsdt(struct device *dev)
 }
 
 static struct pci_operations pci_ops = {
-	.set_subsystem = set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations device_ops = {
diff --git a/src/southbridge/intel/fsp_rangeley/sata.c b/src/southbridge/intel/fsp_rangeley/sata.c
index 3f72a3dfe9..58388a2fab 100644
--- a/src/southbridge/intel/fsp_rangeley/sata.c
+++ b/src/southbridge/intel/fsp_rangeley/sata.c
@@ -96,19 +96,8 @@ static void sata_enable(struct device *dev)
 {
 }
 
-static void sata_set_subsystem(struct device *dev, unsigned vendor, unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations sata_pci_ops = {
-	.set_subsystem    = sata_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations sata_ops = {
diff --git a/src/southbridge/intel/fsp_rangeley/smbus.c b/src/southbridge/intel/fsp_rangeley/smbus.c
index 90b0420465..83533f1d03 100644
--- a/src/southbridge/intel/fsp_rangeley/smbus.c
+++ b/src/southbridge/intel/fsp_rangeley/smbus.c
@@ -40,20 +40,8 @@ static struct smbus_bus_operations lops_smbus_bus = {
 	.read_byte	= lsmbus_read_byte,
 };
 
-static void smbus_set_subsystem(struct device *dev, unsigned vendor,
-				unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations smbus_pci_ops = {
-	.set_subsystem    = smbus_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static void rangeley_smbus_read_resources(struct device *dev)
diff --git a/src/southbridge/intel/i82801gx/ac97.c b/src/southbridge/intel/i82801gx/ac97.c
index 582c962197..f18aedbca7 100644
--- a/src/southbridge/intel/i82801gx/ac97.c
+++ b/src/southbridge/intel/i82801gx/ac97.c
@@ -247,20 +247,8 @@ static void ac97_modem_init(struct device *dev)
 	}
 }
 
-static void ac97_set_subsystem(struct device *dev, unsigned int vendor,
-			       unsigned int device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations ac97_pci_ops = {
-	.set_subsystem    = ac97_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations ac97_audio_ops = {
diff --git a/src/southbridge/intel/i82801gx/azalia.c b/src/southbridge/intel/i82801gx/azalia.c
index 7bf48ef7b0..938dc4edd6 100644
--- a/src/southbridge/intel/i82801gx/azalia.c
+++ b/src/southbridge/intel/i82801gx/azalia.c
@@ -303,20 +303,8 @@ static void azalia_init(struct device *dev)
 	}
 }
 
-static void azalia_set_subsystem(struct device *dev, unsigned int vendor,
-				 unsigned int device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations azalia_pci_ops = {
-	.set_subsystem    = azalia_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations azalia_ops = {
diff --git a/src/southbridge/intel/i82801gx/ide.c b/src/southbridge/intel/i82801gx/ide.c
index e25eaae150..a36237228c 100644
--- a/src/southbridge/intel/i82801gx/ide.c
+++ b/src/southbridge/intel/i82801gx/ide.c
@@ -92,20 +92,8 @@ static void ide_init(struct device *dev)
 	printk(BIOS_DEBUG, "\n");
 }
 
-static void ide_set_subsystem(struct device *dev, unsigned int vendor,
-			      unsigned int device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations ide_pci_ops = {
-	.set_subsystem    = ide_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations ide_ops = {
diff --git a/src/southbridge/intel/i82801gx/lpc.c b/src/southbridge/intel/i82801gx/lpc.c
index 669648ba55..a1cc45af65 100644
--- a/src/southbridge/intel/i82801gx/lpc.c
+++ b/src/southbridge/intel/i82801gx/lpc.c
@@ -676,18 +676,6 @@ static void lpc_final(struct device *dev)
 	outb(POST_OS_BOOT, 0x80);
 }
 
-static void set_subsystem(struct device *dev, unsigned int vendor,
-			  unsigned int device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static void southbridge_inject_dsdt(struct device *dev)
 {
 	global_nvs_t *gnvs = cbmem_add(CBMEM_ID_ACPI_GNVS, sizeof(*gnvs));
@@ -728,7 +716,7 @@ static void southbridge_fill_ssdt(struct device *device)
 }
 
 static struct pci_operations pci_ops = {
-	.set_subsystem = set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations device_ops = {
diff --git a/src/southbridge/intel/i82801gx/sata.c b/src/southbridge/intel/i82801gx/sata.c
index bf473f6d95..8514b6d3bf 100644
--- a/src/southbridge/intel/i82801gx/sata.c
+++ b/src/southbridge/intel/i82801gx/sata.c
@@ -200,20 +200,8 @@ static void sata_init(struct device *dev)
 	pci_write_config32(dev, SATA_IR, reg32);
 }
 
-static void sata_set_subsystem(struct device *dev, unsigned int vendor,
-			       unsigned int device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations sata_pci_ops = {
-	.set_subsystem    = sata_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations sata_ops = {
diff --git a/src/southbridge/intel/i82801gx/smbus.c b/src/southbridge/intel/i82801gx/smbus.c
index 7e95beb9bd..693c2dc96d 100644
--- a/src/southbridge/intel/i82801gx/smbus.c
+++ b/src/southbridge/intel/i82801gx/smbus.c
@@ -81,20 +81,8 @@ static struct smbus_bus_operations lops_smbus_bus = {
 	.block_write    = lsmbus_block_write,
 };
 
-static void smbus_set_subsystem(struct device *dev, unsigned int vendor,
-				unsigned int device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations smbus_pci_ops = {
-	.set_subsystem    = smbus_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static void smbus_read_resources(struct device *dev)
diff --git a/src/southbridge/intel/i82801gx/usb.c b/src/southbridge/intel/i82801gx/usb.c
index 307b5ac622..cd43e03750 100644
--- a/src/southbridge/intel/i82801gx/usb.c
+++ b/src/southbridge/intel/i82801gx/usb.c
@@ -43,20 +43,8 @@ static void usb_init(struct device *dev)
 	printk(BIOS_DEBUG, "done.\n");
 }
 
-static void usb_set_subsystem(struct device *dev, unsigned int vendor,
-			      unsigned int device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations usb_pci_ops = {
-	.set_subsystem    = usb_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations usb_ops = {
diff --git a/src/southbridge/intel/i82801gx/usb_ehci.c b/src/southbridge/intel/i82801gx/usb_ehci.c
index cbefe20540..0a94d3b5f2 100644
--- a/src/southbridge/intel/i82801gx/usb_ehci.c
+++ b/src/southbridge/intel/i82801gx/usb_ehci.c
@@ -69,13 +69,7 @@ static void usb_ehci_set_subsystem(struct device *dev, unsigned int vendor,
 	/* Enable writes to protected registers. */
 	pci_write_config8(dev, 0x80, access_cntl | 1);
 
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
+	pci_dev_set_subsystem(dev, vendor, device);
 
 	/* Restore protection. */
 	pci_write_config8(dev, 0x80, access_cntl);
diff --git a/src/southbridge/intel/i82801ix/hdaudio.c b/src/southbridge/intel/i82801ix/hdaudio.c
index e47f6e0fcb..16350d534e 100644
--- a/src/southbridge/intel/i82801ix/hdaudio.c
+++ b/src/southbridge/intel/i82801ix/hdaudio.c
@@ -287,20 +287,8 @@ static void azalia_init(struct device *dev)
 	}
 }
 
-static void azalia_set_subsystem(struct device *dev, unsigned vendor,
-				 unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations azalia_pci_ops = {
-	.set_subsystem    = azalia_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations azalia_ops = {
diff --git a/src/southbridge/intel/i82801ix/lpc.c b/src/southbridge/intel/i82801ix/lpc.c
index 79a1a1d03f..ce47c590bc 100644
--- a/src/southbridge/intel/i82801ix/lpc.c
+++ b/src/southbridge/intel/i82801ix/lpc.c
@@ -527,17 +527,6 @@ static void i82801ix_lpc_read_resources(struct device *dev)
 	res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
 }
 
-static void set_subsystem(struct device *dev, unsigned vendor, unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static void southbridge_inject_dsdt(struct device *dev)
 {
 	global_nvs_t *gnvs = cbmem_add (CBMEM_ID_ACPI_GNVS, sizeof(*gnvs));
@@ -578,7 +567,7 @@ static void southbridge_fill_ssdt(struct device *device)
 }
 
 static struct pci_operations pci_ops = {
-	.set_subsystem = set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations device_ops = {
diff --git a/src/southbridge/intel/i82801ix/sata.c b/src/southbridge/intel/i82801ix/sata.c
index 0e7f35bce8..6155c15006 100644
--- a/src/southbridge/intel/i82801ix/sata.c
+++ b/src/southbridge/intel/i82801ix/sata.c
@@ -258,20 +258,8 @@ static void sata_enable(struct device *dev)
 	pci_write_config16(dev, 0x90, map);
 }
 
-static void sata_set_subsystem(struct device *dev, unsigned vendor,
-			       unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations sata_pci_ops = {
-	.set_subsystem    = sata_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations sata_ops = {
diff --git a/src/southbridge/intel/i82801ix/smbus.c b/src/southbridge/intel/i82801ix/smbus.c
index c3d23eaccf..9bab9b25de 100644
--- a/src/southbridge/intel/i82801ix/smbus.c
+++ b/src/southbridge/intel/i82801ix/smbus.c
@@ -64,20 +64,8 @@ static struct smbus_bus_operations lops_smbus_bus = {
 	.write_byte	= lsmbus_write_byte,
 };
 
-static void smbus_set_subsystem(struct device *dev, unsigned vendor,
-				unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations smbus_pci_ops = {
-	.set_subsystem    = smbus_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static void smbus_read_resources(struct device *dev)
diff --git a/src/southbridge/intel/i82801ix/thermal.c b/src/southbridge/intel/i82801ix/thermal.c
index 7316f951c2..2deb84d4b2 100644
--- a/src/southbridge/intel/i82801ix/thermal.c
+++ b/src/southbridge/intel/i82801ix/thermal.c
@@ -51,20 +51,8 @@ static void thermal_init(struct device *dev)
 	pci_write_config32(dev, 0x10, 0);
 }
 
-static void thermal_set_subsystem(struct device *dev, unsigned vendor,
-				  unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations thermal_pci_ops = {
-	.set_subsystem = thermal_set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations device_ops = {
diff --git a/src/southbridge/intel/i82801ix/usb_ehci.c b/src/southbridge/intel/i82801ix/usb_ehci.c
index 8768e3e0cf..f7d8b87828 100644
--- a/src/southbridge/intel/i82801ix/usb_ehci.c
+++ b/src/southbridge/intel/i82801ix/usb_ehci.c
@@ -44,13 +44,7 @@ static void usb_ehci_set_subsystem(struct device *dev, unsigned vendor,
 	/* Enable writes to protected registers. */
 	pci_write_config8(dev, 0x80, access_cntl | 1);
 
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
+	pci_dev_set_subsystem(dev, vendor, device);
 
 	/* Restore protection. */
 	pci_write_config8(dev, 0x80, access_cntl);
diff --git a/src/southbridge/intel/i82801jx/hdaudio.c b/src/southbridge/intel/i82801jx/hdaudio.c
index 1e852c0cd2..c2a505b613 100644
--- a/src/southbridge/intel/i82801jx/hdaudio.c
+++ b/src/southbridge/intel/i82801jx/hdaudio.c
@@ -287,20 +287,8 @@ static void azalia_init(struct device *dev)
 	}
 }
 
-static void azalia_set_subsystem(struct device *dev, unsigned vendor,
-				 unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations azalia_pci_ops = {
-	.set_subsystem    = azalia_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations azalia_ops = {
diff --git a/src/southbridge/intel/i82801jx/lpc.c b/src/southbridge/intel/i82801jx/lpc.c
index a365825e7b..abfe665989 100644
--- a/src/southbridge/intel/i82801jx/lpc.c
+++ b/src/southbridge/intel/i82801jx/lpc.c
@@ -684,17 +684,6 @@ static void i82801jx_lpc_read_resources(struct device *dev)
 	}
 }
 
-static void set_subsystem(struct device *dev, unsigned vendor, unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static void southbridge_inject_dsdt(struct device *dev)
 {
 	global_nvs_t *gnvs = cbmem_add (CBMEM_ID_ACPI_GNVS, sizeof(*gnvs));
@@ -734,7 +723,7 @@ static void southbridge_fill_ssdt(struct device *device)
 }
 
 static struct pci_operations pci_ops = {
-	.set_subsystem = set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations device_ops = {
diff --git a/src/southbridge/intel/i82801jx/sata.c b/src/southbridge/intel/i82801jx/sata.c
index bd035de742..8de2d7427d 100644
--- a/src/southbridge/intel/i82801jx/sata.c
+++ b/src/southbridge/intel/i82801jx/sata.c
@@ -253,20 +253,8 @@ static void sata_enable(struct device *dev)
 	pci_write_config16(dev, 0x90, map);
 }
 
-static void sata_set_subsystem(struct device *dev, unsigned vendor,
-			       unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations sata_pci_ops = {
-	.set_subsystem    = sata_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations sata_ops = {
diff --git a/src/southbridge/intel/i82801jx/smbus.c b/src/southbridge/intel/i82801jx/smbus.c
index f9e223f591..d366703a66 100644
--- a/src/southbridge/intel/i82801jx/smbus.c
+++ b/src/southbridge/intel/i82801jx/smbus.c
@@ -91,20 +91,8 @@ static struct smbus_bus_operations lops_smbus_bus = {
 	.block_write    = lsmbus_block_write,
 };
 
-static void smbus_set_subsystem(struct device *dev, unsigned vendor,
-				unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations smbus_pci_ops = {
-	.set_subsystem    = smbus_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static void smbus_read_resources(struct device *dev)
diff --git a/src/southbridge/intel/i82801jx/thermal.c b/src/southbridge/intel/i82801jx/thermal.c
index ac4c596f28..65d897f288 100644
--- a/src/southbridge/intel/i82801jx/thermal.c
+++ b/src/southbridge/intel/i82801jx/thermal.c
@@ -51,20 +51,8 @@ static void thermal_init(struct device *dev)
 	pci_write_config32(dev, 0x10, 0);
 }
 
-static void thermal_set_subsystem(struct device *dev, unsigned vendor,
-				  unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations thermal_pci_ops = {
-	.set_subsystem = thermal_set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations device_ops = {
diff --git a/src/southbridge/intel/i82801jx/usb_ehci.c b/src/southbridge/intel/i82801jx/usb_ehci.c
index 543ac57f01..a4f5a01dc1 100644
--- a/src/southbridge/intel/i82801jx/usb_ehci.c
+++ b/src/southbridge/intel/i82801jx/usb_ehci.c
@@ -44,13 +44,7 @@ static void usb_ehci_set_subsystem(struct device *dev, unsigned vendor,
 	/* Enable writes to protected registers. */
 	pci_write_config8(dev, 0x80, access_cntl | 1);
 
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
+	pci_dev_set_subsystem(dev, vendor, device);
 
 	/* Restore protection. */
 	pci_write_config8(dev, 0x80, access_cntl);
diff --git a/src/southbridge/intel/ibexpeak/azalia.c b/src/southbridge/intel/ibexpeak/azalia.c
index 3cec2a9d9f..5b38ea760a 100644
--- a/src/southbridge/intel/ibexpeak/azalia.c
+++ b/src/southbridge/intel/ibexpeak/azalia.c
@@ -313,20 +313,8 @@ static void azalia_init(struct device *dev)
 	pci_write_config8(dev, 0x43, reg8);
 }
 
-static void azalia_set_subsystem(struct device *dev, unsigned vendor,
-				 unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations azalia_pci_ops = {
-	.set_subsystem    = azalia_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations azalia_ops = {
diff --git a/src/southbridge/intel/ibexpeak/lpc.c b/src/southbridge/intel/ibexpeak/lpc.c
index d440f65eee..fe1d84a2b7 100644
--- a/src/southbridge/intel/ibexpeak/lpc.c
+++ b/src/southbridge/intel/ibexpeak/lpc.c
@@ -609,18 +609,6 @@ static void pch_lpc_enable(struct device *dev)
 	pch_enable(dev);
 }
 
-static void set_subsystem(struct device *dev, unsigned vendor,
-			  unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static void southbridge_inject_dsdt(struct device *dev)
 {
 	global_nvs_t *gnvs = cbmem_add (CBMEM_ID_ACPI_GNVS, sizeof(*gnvs));
@@ -807,7 +795,7 @@ static void lpc_final(struct device *dev)
 }
 
 static struct pci_operations pci_ops = {
-	.set_subsystem = set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations device_ops = {
diff --git a/src/southbridge/intel/ibexpeak/me.c b/src/southbridge/intel/ibexpeak/me.c
index df224d364e..8d3ae02179 100644
--- a/src/southbridge/intel/ibexpeak/me.c
+++ b/src/southbridge/intel/ibexpeak/me.c
@@ -610,20 +610,8 @@ static void intel_me_init(struct device *dev)
 	}
 }
 
-static void set_subsystem(struct device *dev, unsigned vendor,
-			  unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-			   pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-			   ((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations pci_ops = {
-	.set_subsystem = set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations device_ops = {
diff --git a/src/southbridge/intel/ibexpeak/sata.c b/src/southbridge/intel/ibexpeak/sata.c
index 2c24bbf64f..112445bb65 100644
--- a/src/southbridge/intel/ibexpeak/sata.c
+++ b/src/southbridge/intel/ibexpeak/sata.c
@@ -235,19 +235,6 @@ static void sata_enable(struct device *dev)
 	pci_write_config16(dev, 0x90, map);
 }
 
-static void sata_set_subsystem(struct device *dev, unsigned vendor,
-			       unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				   pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				   ((device & 0xffff) << 16) | (vendor &
-								0xffff));
-	}
-}
-
 static void sata_fill_ssdt(struct device *dev)
 {
 	config_t *config = dev->chip_info;
@@ -255,7 +242,7 @@ static void sata_fill_ssdt(struct device *dev)
 }
 
 static struct pci_operations sata_pci_ops = {
-	.set_subsystem = sata_set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations sata_ops = {
diff --git a/src/southbridge/intel/ibexpeak/smbus.c b/src/southbridge/intel/ibexpeak/smbus.c
index 53ba9e2ce3..dd3abfe60c 100644
--- a/src/southbridge/intel/ibexpeak/smbus.c
+++ b/src/southbridge/intel/ibexpeak/smbus.c
@@ -71,20 +71,8 @@ static struct smbus_bus_operations lops_smbus_bus = {
 	.write_byte	= lsmbus_write_byte,
 };
 
-static void smbus_set_subsystem(struct device *dev, unsigned vendor,
-				unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations smbus_pci_ops = {
-	.set_subsystem    = smbus_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static void smbus_read_resources(struct device *dev)
diff --git a/src/southbridge/intel/ibexpeak/thermal.c b/src/southbridge/intel/ibexpeak/thermal.c
index ca8492b7b3..31b2cb6084 100644
--- a/src/southbridge/intel/ibexpeak/thermal.c
+++ b/src/southbridge/intel/ibexpeak/thermal.c
@@ -45,21 +45,8 @@ static void thermal_init(struct device *dev)
 	printk(BIOS_DEBUG, "Thermal init done.\n");
 }
 
-static void set_subsystem(struct device *dev, unsigned vendor,
-			  unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				   pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				   ((device & 0xffff) << 16) | (vendor &
-								0xffff));
-	}
-}
-
 static struct pci_operations pci_ops = {
-	.set_subsystem = set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations thermal_ops = {
diff --git a/src/southbridge/intel/ibexpeak/usb_ehci.c b/src/southbridge/intel/ibexpeak/usb_ehci.c
index 4eacd1b9aa..95cac8123c 100644
--- a/src/southbridge/intel/ibexpeak/usb_ehci.c
+++ b/src/southbridge/intel/ibexpeak/usb_ehci.c
@@ -78,14 +78,7 @@ static void usb_ehci_set_subsystem(struct device *dev, unsigned vendor,
 	/* Enable writes to protected registers. */
 	pci_write_config8(dev, 0x80, access_cntl | 1);
 
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				   pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				   ((device & 0xffff) << 16) | (vendor &
-								0xffff));
-	}
+	pci_dev_set_subsystem(dev, vendor, device);
 
 	/* Restore protection. */
 	pci_write_config8(dev, 0x80, access_cntl);
diff --git a/src/southbridge/intel/lynxpoint/azalia.c b/src/southbridge/intel/lynxpoint/azalia.c
index 5dd46b2ef5..2deb92976e 100644
--- a/src/southbridge/intel/lynxpoint/azalia.c
+++ b/src/southbridge/intel/lynxpoint/azalia.c
@@ -154,20 +154,8 @@ static void azalia_init(struct device *dev)
 	}
 }
 
-static void azalia_set_subsystem(struct device *dev, unsigned int vendor,
-				 unsigned int device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations azalia_pci_ops = {
-	.set_subsystem    = azalia_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations azalia_ops = {
diff --git a/src/southbridge/intel/lynxpoint/lpc.c b/src/southbridge/intel/lynxpoint/lpc.c
index 94b3111d1e..e8cad388d5 100644
--- a/src/southbridge/intel/lynxpoint/lpc.c
+++ b/src/southbridge/intel/lynxpoint/lpc.c
@@ -723,17 +723,6 @@ static void pch_lpc_enable(struct device *dev)
 	pch_enable(dev);
 }
 
-static void set_subsystem(struct device *dev, unsigned vendor, unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static void southbridge_inject_dsdt(struct device *dev)
 {
 	global_nvs_t *gnvs;
@@ -981,7 +970,7 @@ static void lpc_final(struct device *dev)
 }
 
 static struct pci_operations pci_ops = {
-	.set_subsystem = set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations device_ops = {
diff --git a/src/southbridge/intel/lynxpoint/me_9.x.c b/src/southbridge/intel/lynxpoint/me_9.x.c
index f5f94fe625..09eeff26c3 100644
--- a/src/southbridge/intel/lynxpoint/me_9.x.c
+++ b/src/southbridge/intel/lynxpoint/me_9.x.c
@@ -874,20 +874,8 @@ static void intel_me_init(struct device *dev)
 	 */
 }
 
-static void set_subsystem(struct device *dev, unsigned int vendor,
-			  unsigned int device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-			   pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-			   ((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations pci_ops = {
-	.set_subsystem = set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static void intel_me_enable(struct device *dev)
diff --git a/src/southbridge/intel/lynxpoint/sata.c b/src/southbridge/intel/lynxpoint/sata.c
index 97b55e1d29..fd611ea2ca 100644
--- a/src/southbridge/intel/lynxpoint/sata.c
+++ b/src/southbridge/intel/lynxpoint/sata.c
@@ -323,20 +323,8 @@ static void sata_enable(struct device *dev)
 	pci_write_config16(dev, 0x90, map);
 }
 
-static void sata_set_subsystem(struct device *dev, unsigned vendor,
-			       unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations sata_pci_ops = {
-	.set_subsystem    = sata_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static struct device_operations sata_ops = {
diff --git a/src/southbridge/intel/lynxpoint/serialio.c b/src/southbridge/intel/lynxpoint/serialio.c
index f5c52ef8bb..23d8125d7f 100644
--- a/src/southbridge/intel/lynxpoint/serialio.c
+++ b/src/southbridge/intel/lynxpoint/serialio.c
@@ -237,20 +237,8 @@ static void serialio_init(struct device *dev)
 	}
 }
 
-static void serialio_set_subsystem(struct device *dev, unsigned int vendor,
-				   unsigned int device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations pci_ops = {
-	.set_subsystem		= serialio_set_subsystem,
+	.set_subsystem		= pci_dev_set_subsystem,
 };
 
 static struct device_operations device_ops = {
diff --git a/src/southbridge/intel/lynxpoint/smbus.c b/src/southbridge/intel/lynxpoint/smbus.c
index 307d7d4b65..c12b29eb36 100644
--- a/src/southbridge/intel/lynxpoint/smbus.c
+++ b/src/southbridge/intel/lynxpoint/smbus.c
@@ -70,20 +70,8 @@ static struct smbus_bus_operations lops_smbus_bus = {
 	.write_byte	= lsmbus_write_byte,
 };
 
-static void smbus_set_subsystem(struct device *dev, unsigned int vendor,
-				unsigned int device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations smbus_pci_ops = {
-	.set_subsystem    = smbus_set_subsystem,
+	.set_subsystem    = pci_dev_set_subsystem,
 };
 
 static void smbus_read_resources(struct device *dev)
diff --git a/src/southbridge/intel/lynxpoint/usb_ehci.c b/src/southbridge/intel/lynxpoint/usb_ehci.c
index b54e36b8f8..bc86053eca 100644
--- a/src/southbridge/intel/lynxpoint/usb_ehci.c
+++ b/src/southbridge/intel/lynxpoint/usb_ehci.c
@@ -175,13 +175,7 @@ static void usb_ehci_set_subsystem(struct device *dev, unsigned int vendor,
 	/* Enable writes to protected registers. */
 	pci_write_config8(dev, 0x80, access_cntl | 1);
 
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
+	pci_dev_set_subsystem(dev, vendor, device);
 
 	/* Restore protection. */
 	pci_write_config8(dev, 0x80, access_cntl);
diff --git a/src/southbridge/intel/lynxpoint/usb_xhci.c b/src/southbridge/intel/lynxpoint/usb_xhci.c
index ee25e5c409..ddba351aae 100644
--- a/src/southbridge/intel/lynxpoint/usb_xhci.c
+++ b/src/southbridge/intel/lynxpoint/usb_xhci.c
@@ -373,20 +373,8 @@ static void usb_xhci_init(struct device *dev)
 	}
 }
 
-static void usb_xhci_set_subsystem(struct device *dev, unsigned int vendor,
-				   unsigned int device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations lops_pci = {
-	.set_subsystem = &usb_xhci_set_subsystem,
+	.set_subsystem = &pci_dev_set_subsystem,
 };
 
 static struct device_operations usb_xhci_ops = {
diff --git a/src/southbridge/nvidia/mcp55/azalia.c b/src/southbridge/nvidia/mcp55/azalia.c
index 86ab5b965a..f393297d2c 100644
--- a/src/southbridge/nvidia/mcp55/azalia.c
+++ b/src/southbridge/nvidia/mcp55/azalia.c
@@ -254,20 +254,8 @@ static void azalia_init(struct device *dev)
 #endif
 }
 
-static void azalia_set_subsystem(struct device *dev, unsigned vendor,
-				 unsigned device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
 static struct pci_operations azalia_pci_ops = {
-	.set_subsystem = azalia_set_subsystem,
+	.set_subsystem = pci_dev_set_subsystem,
 };
 
 static struct device_operations azalia_ops = {