From 4fdf228cdf6925af45a2066d403821e0977bfddb Mon Sep 17 00:00:00 2001
From: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Date: Sat, 30 May 2020 11:41:50 +0400
Subject: [PATCH] usb: dwc2: Fix shutdown callback in platform
Git-commit: 4fdf228cdf6925af45a2066d403821e0977bfddb
Patch-mainline: v5.8-rc6
References: bsc#1111666

To avoid lot of interrupts from dwc2 core, which can be asserted in
specific conditions need to disable interrupts on HW level instead of
disable IRQs on Kernel level, because of IRQ can be shared between
drivers.

Cc: stable@vger.kernel.org
Fixes: a40a00318c7fc ("usb: dwc2: add shutdown callback to platform variant")
Tested-by: Frank Mori Hess <fmh6jj@gmail.com>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Frank Mori Hess <fmh6jj@gmail.com>
Signed-off-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/usb/dwc2/platform.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index c347d93eae64..cb8ddbd53718 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -342,7 +342,8 @@ static void dwc2_driver_shutdown(struct platform_device *dev)
 {
 	struct dwc2_hsotg *hsotg = platform_get_drvdata(dev);
 
-	disable_irq(hsotg->irq);
+	dwc2_disable_global_interrupts(hsotg);
+	synchronize_irq(hsotg->irq);
 }
 
 /**
-- 
2.16.4