From: Mathias Nyman <mathias.nyman@linux.intel.com>
To: Guenter Roeck <linux@roeck-us.net>,
Mathias Nyman <mathias.nyman@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] usb: host: xhci-plat: Fix timeout on removal of hot pluggable xhci controllers
Date: Thu, 9 Mar 2017 10:47:31 +0200 [thread overview]
Message-ID: <58C116A3.7080909@linux.intel.com> (raw)
In-Reply-To: <1489002556-5749-1-git-send-email-linux@roeck-us.net>
On 08.03.2017 21:49, Guenter Roeck wrote:
> Upstream commit 98d74f9ceaef ("xhci: fix 10 second timeout on removal of
> PCI hotpluggable xhci controllers") fixes a problem with hot pluggable PCI
> xhci controllers which can result in excessive timeouts, to the point where
> the system reports a deadlock.
>
> The same problem is seen with hot pluggable xhci controllers using the
> xhci-plat driver, such as the driver used for Type-C ports on rk3399.
> Similar to hot-pluggable PCI controllers, the driver for this chip
> removes the xhci controller from the system when the Type-C cable is
> disconnected.
>
> The solution for PCI devices works just as well for non-PCI devices
> and avoids the problem.
>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
Thanks, adding to queue
-Mathias
prev parent reply other threads:[~2017-03-09 9:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-08 19:49 [PATCH] usb: host: xhci-plat: Fix timeout on removal of hot pluggable xhci controllers Guenter Roeck
2017-03-09 8:47 ` Mathias Nyman [this message]
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