usb: gadget: introduce gadget_is_dwc3()

... to check whether we're running on DesignWare
USB3 DRD Controller.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h
index f3a83cd0ef50..a8855d0b7f3b 100644
--- a/drivers/usb/gadget/gadget_chips.h
+++ b/drivers/usb/gadget/gadget_chips.h
@@ -31,6 +31,7 @@
 #define gadget_is_ci13xxx_msm(g)        (!strcmp("ci13xxx_msm", (g)->name))
 #define gadget_is_ci13xxx_pci(g)        (!strcmp("ci13xxx_pci", (g)->name))
 #define gadget_is_dummy(g)              (!strcmp("dummy_udc", (g)->name))
+#define gadget_is_dwc3(g)               (!strcmp("dwc3-gadget", (g)->name))
 #define gadget_is_fsl_qe(g)             (!strcmp("fsl_qe_udc", (g)->name))
 #define gadget_is_fsl_usb2(g)           (!strcmp("fsl-usb2-udc", (g)->name))
 #define gadget_is_goku(g)               (!strcmp("goku_udc", (g)->name))
@@ -115,6 +116,8 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
                 return 0x30;
         else if (gadget_is_net2272(gadget))
                 return 0x31;
+        else if (gadget_is_dwc3(gadget))
+                return 0x32;
 
         return -ENOENT;
 }