staging: dwc2: use dwc2_hcd_get_frame_number where possible

Before, there were two places that manually read the FRNUM registers,
while there is a function to do this.
Signed-off-by: NMatthijs Kooijman <matthijs@stdin.nl>
Acked-by: NPaul Zimmerman <paulz@synopsys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/dwc2/core.c

@@ -1146,16 +1146,10 @@ void dwc2_hc_cleanup(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan)
 static void dwc2_hc_set_even_odd_frame(struct dwc2_hsotg *hsotg,
 				       struct dwc2_host_chan *chan, u32 *hcchar)
 {
-	u32 hfnum, frnum;
-
 	if (chan->ep_type == USB_ENDPOINT_XFER_INT ||
 	    chan->ep_type == USB_ENDPOINT_XFER_ISOC) {
-		hfnum = readl(hsotg->regs + HFNUM);
-		frnum = hfnum >> HFNUM_FRNUM_SHIFT &
-			HFNUM_FRNUM_MASK >> HFNUM_FRNUM_SHIFT;
-
 		/* 1 if _next_ frame is odd, 0 if it's even */
-		if (frnum & 0x1)
+		if (dwc2_hcd_get_frame_number(hsotg) & 0x1)
 			*hcchar |= HCCHAR_ODDFRM;
 	}
 }

drivers/staging/dwc2/hcd_intr.c

@@ -117,16 +117,13 @@ static void dwc2_sof_intr(struct dwc2_hsotg *hsotg)
 {
 	struct list_head *qh_entry;
 	struct dwc2_qh *qh;
-	u32 hfnum;
 	enum dwc2_transaction_type tr_type;
 
 #ifdef DEBUG_SOF
 	dev_vdbg(hsotg->dev, "--Start of Frame Interrupt--\n");
 #endif
 
-	hfnum = readl(hsotg->regs + HFNUM);
-	hsotg->frame_number = hfnum >> HFNUM_FRNUM_SHIFT &
-			    HFNUM_FRNUM_MASK >> HFNUM_FRNUM_SHIFT;
+	hsotg->frame_number = dwc2_hcd_get_frame_number(hsotg);
 
 	dwc2_track_missed_sofs(hsotg);