From: Minas Harutyunyan Minas.Harutyunyan@synopsys.com
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
--- drivers/usb/dwc2/platform.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/usb/dwc2/platform.c +++ b/drivers/usb/dwc2/platform.c @@ -507,7 +507,8 @@ static void dwc2_driver_shutdown(struct { struct dwc2_hsotg *hsotg = platform_get_drvdata(dev);
- disable_irq(hsotg->irq); + dwc2_disable_global_interrupts(hsotg); + synchronize_irq(hsotg->irq); }
static const struct of_device_id dwc2_of_match_table[] = {