From: Greg KH <gregkh@linuxfoundation.org>
To: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: linux-usb@vger.kernel.org, sarah.a.sharp@linux.intel.com,
linux-kernel@vger.kernel.org,
Denis Turischev <denis.turischev@compulab.co.il>,
Denis Turischev <denis@compulab.co.il>
Subject: Re: [PATCH 3/5] xhci: Switch Intel Lynx Point ports to EHCI on shutdown.
Date: Thu, 24 Apr 2014 12:49:48 -0700 [thread overview]
Message-ID: <20140424194948.GC12809@kroah.com> (raw)
In-Reply-To: <1398169382-12097-4-git-send-email-mathias.nyman@linux.intel.com>
On Tue, Apr 22, 2014 at 03:23:00PM +0300, Mathias Nyman wrote:
> From: Denis Turischev <denis.turischev@compulab.co.il>
>
> The same issue like with Panther Point chipsets. If the USB ports are
> switched to xHCI on shutdown, the xHCI host will send a spurious interrupt,
> which will wake the system. Some BIOS have work around for this, but not all.
> One example is Compulab's mini-desktop, the Intense-PC2.
>
> The bug can be avoided if the USB ports are switched back to EHCI on
> shutdown.
>
> Signed-off-by: Denis Turischev <denis@compulab.co.il>
> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
> ---
> drivers/usb/host/xhci-pci.c | 2 ++
> 1 file changed, 2 insertions(+)
No stable marking? Why not?
next prev parent reply other threads:[~2014-04-24 19:46 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-22 12:22 [PATCH 0/5] xhci: fixes for 3.15-rc usb-linus Mathias Nyman
2014-04-22 12:22 ` [PATCH 1/5] usb: xhci: Prefer endpoint context dequeue pointer over stopped_trb Mathias Nyman
2014-04-24 19:49 ` Greg KH
2014-04-24 20:15 ` Julius Werner
2014-04-22 12:22 ` [PATCH 2/5] xhci: Use pci_enable_msix_exact() instead of pci_enable_msix() Mathias Nyman
2014-04-24 19:49 ` Greg KH
2014-04-25 10:48 ` Mathias Nyman
2014-04-22 12:23 ` [PATCH 3/5] xhci: Switch Intel Lynx Point ports to EHCI on shutdown Mathias Nyman
2014-04-24 19:49 ` Greg KH [this message]
2014-04-22 12:23 ` [PATCH 4/5] xhci: extend quirk for Renesas cards Mathias Nyman
2014-04-24 19:50 ` Greg KH
2014-04-22 12:23 ` [PATCH 5/5] usb/xhci: fix compilation warning when !CONFIG_PCI && !CONFIG_PM Mathias Nyman
2014-04-24 19:50 ` Greg KH
2014-04-24 20:15 ` David Cohen
2014-04-24 19:50 ` [PATCH 0/5] xhci: fixes for 3.15-rc usb-linus Greg KH
2014-04-25 8:11 ` Mathias Nyman
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