lkml.org 
[lkml]   [2020]   [Jul]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 5.4 156/215] usb: dwc2: Fix shutdown callback in platform
    Date
    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
    @@ -337,7 +337,8 @@ 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);
    }

    /**

    \
     
     \ /
      Last update: 2020-07-20 18:03    [W:3.694 / U:0.096 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site