1 files changed, 9 insertions, 2 deletions

diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index a20e7815d814..712b2a603645 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -256,6 +256,7 @@ struct hc_driver {
 
         int     flags;
 #define HCD_MEMORY      0x0001          /* HC regs use memory (else I/O) */
+#define HCD_DMA         0x0002          /* HC uses DMA */
 #define HCD_SHARED      0x0004          /* Two (or more) usb_hcds share HW */
 #define HCD_USB11       0x0010          /* USB 1.1 */
 #define HCD_USB2        0x0020          /* USB 2.0 */
@@ -422,8 +423,10 @@ static inline bool hcd_periodic_completion_in_progress(struct usb_hcd *hcd,
         return hcd->high_prio_bh.completing_ep == ep;
 }
 
-#define hcd_uses_dma(hcd) \
-        (IS_ENABLED(CONFIG_HAS_DMA) && (hcd)->self.uses_dma)
+static inline bool hcd_uses_dma(struct usb_hcd *hcd)
+{
+        return IS_ENABLED(CONFIG_HAS_DMA) && (hcd->driver->flags & HCD_DMA);
+}
 
 extern int usb_hcd_link_urb_to_ep(struct usb_hcd *hcd, struct urb *urb);
 extern int usb_hcd_check_unlink_urb(struct usb_hcd *hcd, struct urb *urb,
@@ -594,6 +597,10 @@ extern void usb_ep0_reinit(struct usb_device *);
 #define GetPortStatus           HUB_CLASS_REQ(USB_DIR_IN, USB_RT_PORT, USB_REQ_GET_STATUS)
 #define SetHubFeature           HUB_CLASS_REQ(USB_DIR_OUT, USB_RT_HUB, USB_REQ_SET_FEATURE)
 #define SetPortFeature          HUB_CLASS_REQ(USB_DIR_OUT, USB_RT_PORT, USB_REQ_SET_FEATURE)
+#define ClearTTBuffer           HUB_CLASS_REQ(USB_DIR_OUT, USB_RT_PORT, HUB_CLEAR_TT_BUFFER)
+#define ResetTT                 HUB_CLASS_REQ(USB_DIR_OUT, USB_RT_PORT, HUB_RESET_TT)
+#define GetTTState              HUB_CLASS_REQ(USB_DIR_IN, USB_RT_PORT, HUB_GET_TT_STATE)
+#define StopTT                  HUB_CLASS_REQ(USB_DIR_OUT, USB_RT_PORT, HUB_STOP_TT)
 
 
 /*-------------------------------------------------------------------------*/