usb: dwc3: trace: print out ep0state also from XferComplete

With this extra piece of information, it will be
easier to find mismatches between driver and HW.

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

1 files changed, 8 insertions, 3 deletions

diff --git a/drivers/usb/dwc3/debug.h b/drivers/usb/dwc3/debug.h
index 61b6f0f207cf..b287fc6ab29e 100644
--- a/drivers/usb/dwc3/debug.h
+++ b/drivers/usb/dwc3/debug.h
@@ -200,10 +200,11 @@ dwc3_gadget_event_string(const struct dwc3_event_devt *event)
  * @event: then event code
  */
 static inline const char *
-dwc3_ep_event_string(const struct dwc3_event_depevt *event)
+dwc3_ep_event_string(const struct dwc3_event_depevt *event, u32 ep0state)
 {
         u8 epnum = event->endpoint_number;
         static char str[256];
+        size_t len;
         int status;
         int ret;
 
@@ -215,6 +216,10 @@ dwc3_ep_event_string(const struct dwc3_event_depevt *event)
         switch (event->endpoint_event) {
         case DWC3_DEPEVT_XFERCOMPLETE:
                 strcat(str, "Transfer Complete");
+                len = strlen(str);
+
+                if (epnum <= 1)
+                        sprintf(str + len, " [%s]", dwc3_ep0_state_string(ep0state));
                 break;
         case DWC3_DEPEVT_XFERINPROGRESS:
                 strcat(str, "Transfer In-Progress");
@@ -299,14 +304,14 @@ static inline const char *dwc3_gadget_event_type_string(u8 event)
         }
 }
 
-static inline const char *dwc3_decode_event(u32 event)
+static inline const char *dwc3_decode_event(u32 event, u32 ep0state)
 {
         const union dwc3_event evt = (union dwc3_event) event;
 
         if (evt.type.is_devspec)
                 return dwc3_gadget_event_string(&evt.devt);
         else
-                return dwc3_ep_event_string(&evt.depevt);
+                return dwc3_ep_event_string(&evt.depevt, ep0state);
 }
 
 static inline const char *dwc3_ep_cmd_status_string(int status)