usb: dwc3: core: add flag for EP0 direction

Add a flag to keep track of ep0 direction.
This flag will be used on a following patch.

Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 8688b5a809d2..e7439699f442 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -350,6 +350,9 @@ struct dwc3_ep {
 #define DWC3_EP_PENDING_REQUEST (1 << 5)
 #define DWC3_EP_WILL_SHUTDOWN   (1 << 6)
 
+        /* This last one is specific to EP0 */
+#define DWC3_EP0_DIR_IN         (1 << 31)
+
         unsigned                current_trb;
 
         u8                      number;