| From 0f441274ea95bd823d80b314fcf446be3327eb67 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 |
| |
| 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: Paul Gortmaker <paul.gortmaker@windriver.com> |
| |
| diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c |
| index f1acfdee4ac3..e9e0b5d2ab74 100644 |
| --- a/drivers/usb/dwc2/platform.c |
| +++ b/drivers/usb/dwc2/platform.c |
| @@ -337,7 +337,8 @@ 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); |
| } |
| |
| /** |
| -- |
| 2.27.0 |
| |
