PCI: Add PCI_CLASS_SERIAL_USB_DEVICE definition

PCI-SIG has defined Interface FEh for Base Class 0Ch, Sub-Class 03h as "USB
Device (not host controller)".  It is already being used in various USB
device controller drivers for matching, so add PCI_CLASS_SERIAL_USB_DEVICE
and use it.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

drivers/pci/quirks.c

@@ -438,7 +438,7 @@ static void quirk_amd_nl_class(struct pci_dev *pdev)
 	u32 class = pdev->class;
 
 	/* Use "USB Device (not host controller)" class */
-	pdev->class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe;
+	pdev->class = PCI_CLASS_SERIAL_USB_DEVICE;
 	dev_info(&pdev->dev, "PCI class overridden (%#08x -> %#08x) so dwc3 driver can claim this instead of xhci\n",
 		 class, pdev->class);
 }

drivers/usb/gadget/udc/amd5536udc.c

@@ -3397,7 +3397,7 @@ err_pcidev:
 static const struct pci_device_id pci_id[] = {
 	{
 		PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x2096),
-		.class =	(PCI_CLASS_SERIAL_USB << 8) | 0xfe,
+		.class =	PCI_CLASS_SERIAL_USB_DEVICE,
 		.class_mask =	0xffffffff,
 	},
 	{},

drivers/usb/gadget/udc/goku_udc.c

@@ -1846,7 +1846,7 @@ err:
 /*-------------------------------------------------------------------------*/
 
 static const struct pci_device_id pci_ids[] = { {
-	.class =	((PCI_CLASS_SERIAL_USB << 8) | 0xfe),
+	.class =	PCI_CLASS_SERIAL_USB_DEVICE,
 	.class_mask =	~0,
 	.vendor =	0x102f,		/* Toshiba */
 	.device =	0x0107,		/* this UDC */

drivers/usb/gadget/udc/net2280.c

@@ -3735,7 +3735,7 @@ static void net2280_shutdown(struct pci_dev *pdev)
 /*-------------------------------------------------------------------------*/
 
 static const struct pci_device_id pci_ids[] = { {
-	.class =	((PCI_CLASS_SERIAL_USB << 8) | 0xfe),
+	.class =	PCI_CLASS_SERIAL_USB_DEVICE,
 	.class_mask =	~0,
 	.vendor =	PCI_VENDOR_ID_PLX_LEGACY,
 	.device =	0x2280,
@@ -3743,7 +3743,7 @@ static const struct pci_device_id pci_ids[] = { {
 	.subdevice =	PCI_ANY_ID,
 	.driver_data =	PLX_LEGACY | PLX_2280,
 	}, {
-	.class =	((PCI_CLASS_SERIAL_USB << 8) | 0xfe),
+	.class =	PCI_CLASS_SERIAL_USB_DEVICE,
 	.class_mask =	~0,
 	.vendor =	PCI_VENDOR_ID_PLX_LEGACY,
 	.device =	0x2282,
@@ -3752,7 +3752,7 @@ static const struct pci_device_id pci_ids[] = { {
 	.driver_data =	PLX_LEGACY,
 	},
 	{
-	.class =	((PCI_CLASS_SERIAL_USB << 8) | 0xfe),
+	.class =	PCI_CLASS_SERIAL_USB_DEVICE,
 	.class_mask =	~0,
 	.vendor =	PCI_VENDOR_ID_PLX,
 	.device =	0x3380,
@@ -3761,7 +3761,7 @@ static const struct pci_device_id pci_ids[] = { {
 	.driver_data =	PLX_SUPERSPEED,
 	 },
 	{
-	.class =	((PCI_CLASS_SERIAL_USB << 8) | 0xfe),
+	.class =	PCI_CLASS_SERIAL_USB_DEVICE,
 	.class_mask =	~0,
 	.vendor =	PCI_VENDOR_ID_PLX,
 	.device =	0x3382,

drivers/usb/gadget/udc/pch_udc.c

@@ -3234,22 +3234,22 @@ static const struct pci_device_id pch_udc_pcidev_id[] = {
 	{
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL,
 			   PCI_DEVICE_ID_INTEL_QUARK_X1000_UDC),
-		.class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe,
+		.class = PCI_CLASS_SERIAL_USB_DEVICE,
 		.class_mask = 0xffffffff,
 	},
 	{
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EG20T_UDC),
-		.class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe,
+		.class = PCI_CLASS_SERIAL_USB_DEVICE,
 		.class_mask = 0xffffffff,
 	},
 	{
 		PCI_DEVICE(PCI_VENDOR_ID_ROHM, PCI_DEVICE_ID_ML7213_IOH_UDC),
-		.class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe,
+		.class = PCI_CLASS_SERIAL_USB_DEVICE,
 		.class_mask = 0xffffffff,
 	},
 	{
 		PCI_DEVICE(PCI_VENDOR_ID_ROHM, PCI_DEVICE_ID_ML7831_IOH_UDC),
-		.class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe,
+		.class = PCI_CLASS_SERIAL_USB_DEVICE,
 		.class_mask = 0xffffffff,
 	},
 	{ 0 },

include/linux/pci_ids.h

@@ -110,6 +110,7 @@
 #define PCI_CLASS_SERIAL_USB_OHCI	0x0c0310
 #define PCI_CLASS_SERIAL_USB_EHCI	0x0c0320
 #define PCI_CLASS_SERIAL_USB_XHCI	0x0c0330
+#define PCI_CLASS_SERIAL_USB_DEVICE	0x0c03fe
 #define PCI_CLASS_SERIAL_FIBER		0x0c04
 #define PCI_CLASS_SERIAL_SMBUS		0x0c05