Revert "usb: dwc2: gadget: use ep->fifo_index in context of FIFO registers"

Revert "usb: dwc2: gadget: use ep->fifo_index in context of FIFO registers"

[Minas Harutyunyan]

This reverts commit ad674a15249e7d800162858e49272877a782ec40 "usb: dwc2:
gadget: use ep->fifo_index in context of FIFO registers".

DTXFSTSn indexation based on EP number not TxFIFO number.

Signed-off-by: Minas Harutyunyan <hminas@synopsys.com>
---
 drivers/usb/dwc2/gadget.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 8cecd3e1d5ae..86bf42a99807 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -538,8 +538,7 @@ static int dwc2_hsotg_write_fifo(struct dwc2_hsotg *hsotg,
 			return -ENOSPC;
 		}
 	} else if (hsotg->dedicated_fifos && hs_ep->index != 0) {
-		can_write = dwc2_readl(hsotg->regs +
-				DTXFSTS(hs_ep->fifo_index));
+		can_write = dwc2_readl(hsotg->regs + DTXFSTS(hs_ep->index));
 
 		can_write &= 0xffff;
 		can_write *= 4;
@@ -3165,7 +3164,7 @@ static void kill_all_requests(struct dwc2_hsotg *hsotg,
 
 	if (!hsotg->dedicated_fifos)
 		return;
-	size = (dwc2_readl(hsotg->regs + DTXFSTS(ep->fifo_index)) & 0xffff) * 4;
+	size = (dwc2_readl(hsotg->regs + DTXFSTS(ep->index)) & 0xffff) * 4;
 	if (size < ep->fifo_size)
 		dwc2_hsotg_txfifo_flush(hsotg, ep->fifo_index);
 }