From: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Date: Tue, 26 Aug 2014 16:00:19 +0000 (+0200)
Subject: usb: gadget: net2280: Fix invalid handling of Reset irq
X-Git-Tag: v3.17-rc5~16^2~23^2~9
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=ac9d032e739f13ca04bfe6e0fd04bd114f72c6e2;p=~emulex%2Finfiniband.git

usb: gadget: net2280: Fix invalid handling of Reset irq

Without this patch, some hosts keep restarting indefinitely the target.

Fixes: ae8e530 (usb: gadget: net2280: Code Cleanup)
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c
index f4eac113690..2e95715b50c 100644
--- a/drivers/usb/gadget/udc/net2280.c
+++ b/drivers/usb/gadget/udc/net2280.c
@@ -3320,7 +3320,7 @@ static void handle_stat1_irqs(struct net2280 *dev, u32 stat)
 	if (stat & tmp) {
 		writel(tmp, &dev->regs->irqstat1);
 		if ((((stat & BIT(ROOT_PORT_RESET_INTERRUPT)) &&
-				(readl(&dev->usb->usbstat) & mask)) ||
+				((readl(&dev->usb->usbstat) & mask) == 0)) ||
 				((readl(&dev->usb->usbctl) &
 					BIT(VBUS_PIN)) == 0)) &&
 				(dev->gadget.speed != USB_SPEED_UNKNOWN)) {