usb: dwc3: add 'saved_state' field to dwc3_ep structure

This extra field will save endpoint state when we're
about to enter hibernation. It will be used later
to restore the endpoint state when resuming.

Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index a2b01785bb3fb34137e1e7413df078ed3b399bca..4c14796a5ffcad6639bc2b59e3b7d5e21add2369 100644 (file)
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -394,6 +394,7 @@ struct dwc3_event_buffer {
  * @busy_slot: first slot which is owned by HW
  * @desc: usb_endpoint_descriptor pointer
  * @dwc: pointer to DWC controller
+ * @saved_state: ep state saved during hibernation
  * @flags: endpoint flags (wedged, stalled, ...)
  * @current_trb: index of current used trb
  * @number: endpoint number (1 - 15)
@@ -416,6 +417,7 @@ struct dwc3_ep {
        const struct usb_ss_ep_comp_descriptor *comp_desc;
        struct dwc3             *dwc;
 
+       u32                     saved_state;
        unsigned                flags;
 #define DWC3_EP_ENABLED                (1 << 0)
 #define DWC3_EP_STALL          (1 << 1)