From: Gregory Herrero <gregory.herrero@intel.com>
Date: Tue, 22 Sep 2015 13:16:48 +0000 (+0200)
Subject: usb: dwc2: host: disable interrupt during stop
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=5bbf6ce0a964c77d9522cf377fd7a4c4af030378;p=deliverable%2Flinux.git

usb: dwc2: host: disable interrupt during stop

Disable host interrupts before synchronising dwc2 irq.
So that interrupts are not generated once controller is stopped.

Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Tested-by: John Youn <johnyoun@synopsys.com>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 257f9579705d..de9d2e2bbf48 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -2350,6 +2350,9 @@ static void _dwc2_hcd_stop(struct usb_hcd *hcd)
 	struct dwc2_hsotg *hsotg = dwc2_hcd_to_hsotg(hcd);
 	unsigned long flags;
 
+	/* Turn off all host-specific interrupts */
+	dwc2_disable_host_interrupts(hsotg);
+
 	/* Wait for interrupt processing to finish */
 	synchronize_irq(hcd->irq);