From 5bbf6ce0a964c77d9522cf377fd7a4c4af030378 Mon Sep 17 00:00:00 2001
From: Gregory Herrero <gregory.herrero@intel.com>
Date: Tue, 22 Sep 2015 15:16:48 +0200
Subject: 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>
---
 drivers/usb/dwc2/hcd.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'drivers/usb/dwc2')

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);
 
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