From 153905db2eaafa7527c46066a94f616346ecc13d Mon Sep 17 00:00:00 2001
From: William Wu <william.wu@rock-chips.com>
Date: Wed, 16 Sep 2020 10:46:26 +0800
Subject: [PATCH] usb: dwc3: gadget: only resize fifo for isoc ep with 1024
 maxpacket

Signed-off-by: William Wu <william.wu@rock-chips.com>
Change-Id: If28098b07a1d3bf0a35c4ff37ae7f548283191c7
---
 drivers/usb/dwc3/gadget.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index a58e776145b9..0ca339cc2f96 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -892,7 +892,8 @@ static int dwc3_gadget_ep_enable(struct usb_ep *ep,
 	ret = __dwc3_gadget_ep_enable(dep, DWC3_DEPCFG_ACTION_INIT);
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
-	if (usb_endpoint_xfer_isoc(ep->desc))
+	if (usb_endpoint_xfer_isoc(ep->desc) &&
+	    usb_endpoint_maxp(ep->desc) >= 1024)
 		dwc3_gadget_resize_tx_fifos(dwc);
 
 	return ret;