Re: [PATCH v2] xhci: Convert xhci_handshake() to use readl_poll_timeout_atomic()

[Mathias Nyman]

On 29.4.2019 23.05, Raul Rangel wrote:
> On Thu, Feb 07, 2019 at 05:48:16PM -0800, Andrey Smirnov wrote:
> > Xhci_handshake() implements the algorithm already captured by
> > readl_poll_timeout_atomic(). Convert the former to use the latter to
> > avoid repetition.
> >
> > Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
> Tested-by: Raul E Rangel <rrangel@xxxxxxxxxxxx>
> Reviewed-by: Raul E Rangel <rrangel@xxxxxxxxxxxx>
>
> This fixes a bug on the AMD Stoneyridge platform. usleep(1) sometimes
> takes over 10ms. This means a 5 second timeout can easily take over 15
> seconds which will trigger the watchdog and reboot the system.
>
> Thanks for the patch.

Adding to queue

-Mathias