usb: dwc2: Fix shutdown callback in platform

commit 4fdf228cdf6925af45a2066d403821e0977bfddb upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 5684c4781af9e03da8fd297909d559314336a630..797afa99ef3b41383a57189a4998e2529bb8cea2 100644 (file)
--- 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);
 }
 
 /**