USB: gadget: Add USB controller driver for MSM SoC

MSM SoC has chipidea USB controller. So use ci13xxx_udc core.
This driver depends on transceiver driver for clock control,
PHY initialization, VBUS detection.  Register for notify_event
callback to perform MSM specific quirks after controller is reset
and stopped.

Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
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 3093ebbea731..ad2114e87511 100644
--- a/drivers/usb/gadget/gadget_chips.h
+++ b/drivers/usb/gadget/gadget_chips.h
@@ -148,6 +148,12 @@
 #define gadget_is_pch(g)        0
 #endif
 
+#ifdef CONFIG_USB_GADGET_CI13XXX_MSM
+#define gadget_is_ci13xxx_msm(g)        (!strcmp("ci13xxx_msm", (g)->name))
+#else
+#define gadget_is_ci13xxx_msm(g)        0
+#endif
+
 /**
  * usb_gadget_controller_number - support bcdDevice id convention
  * @gadget: the controller being driven
@@ -207,6 +213,8 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
                 return 0x26;
         else if (gadget_is_pch(gadget))
                 return 0x27;
+        else if (gadget_is_ci13xxx_msm(gadget))
+                return 0x28;
         return -ENOENT;
 }