usb: dwc3: debug: move dwc3_ep0_state_string() to debug.h

We will be using dwc3_ep0_state_string() from within
our tracepoints, so we need to move that helper to
debug.h in order for it to be accessible.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/dwc3/debug.h b/drivers/usb/dwc3/debug.h
index fe8abee..61b6f0f 100644 (file)
--- a/drivers/usb/dwc3/debug.h
+++ b/drivers/usb/dwc3/debug.h
@@ -124,6 +124,22 @@ dwc3_gadget_link_string(enum dwc3_link_state link_state)
        }
 }
 
+static inline const char *dwc3_ep0_state_string(enum dwc3_ep0_state state)
+{
+       switch (state) {
+       case EP0_UNCONNECTED:
+               return "Unconnected";
+       case EP0_SETUP_PHASE:
+               return "Setup Phase";
+       case EP0_DATA_PHASE:
+               return "Data Phase";
+       case EP0_STATUS_PHASE:
+               return "Status Phase";
+       default:
+               return "UNKNOWN";
+       }
+}
+
 /**
  * dwc3_gadget_event_string - returns event name
  * @event: the event code

diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 2d2f582..1be5471 100644 (file)
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -39,22 +39,6 @@ static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep);
 static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
                struct dwc3_ep *dep, struct dwc3_request *req);
 
-static const char *dwc3_ep0_state_string(enum dwc3_ep0_state state)
-{
-       switch (state) {
-       case EP0_UNCONNECTED:
-               return "Unconnected";
-       case EP0_SETUP_PHASE:
-               return "Setup Phase";
-       case EP0_DATA_PHASE:
-               return "Data Phase";
-       case EP0_STATUS_PHASE:
-               return "Status Phase";
-       default:
-               return "UNKNOWN";
-       }
-}
-
 static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
                u32 len, u32 type, bool chain)
 {