USB: amd5536 UDC driver (in GEODE southbridge)

Driver for the AMD5536 UDC, as found in the AMD Geode CS5536 (southbridge).
This is a high speed DMA-capable controller, which can also be used in
OTG configurations (which are not supported by this patch).

Acked-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h
index 53e9139ba388..e7fbefefe7b0 100644
--- a/drivers/usb/gadget/gadget_chips.h
+++ b/drivers/usb/gadget/gadget_chips.h
@@ -17,6 +17,12 @@
 #define gadget_is_net2280(g)    0
 #endif
 
+#ifdef CONFIG_USB_GADGET_AMD5536UDC
+#define gadget_is_amd5536udc(g) !strcmp("amd5536udc", (g)->name)
+#else
+#define gadget_is_amd5536udc(g) 0
+#endif
+
 #ifdef CONFIG_USB_GADGET_DUMMY_HCD
 #define gadget_is_dummy(g)      !strcmp("dummy_udc", (g)->name)
 #else
@@ -202,6 +208,8 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
                 return 0x18;
         else if (gadget_is_fsl_usb2(gadget))
                 return 0x19;
+        else if (gadget_is_amd5536udc(gadget))
+                return 0x20;
         else if (gadget_is_m66592(gadget))
                 return 0x20;
         return -ENOENT;