From: Denis Turischev <denis.turischev@compulab.co.il>
To: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
Takashi Iwai <tiwai@suse.de>, Oliver Neukum <oneukum@suse.de>,
dashing.meng@gmail.com, Niklas Schnelle <niklas@komani.de>,
Giorgos <ganastasiouGR@gmail.com>,
art1@vhex.net
Subject: Re: [PATCH v1] xhci: Switch Intel Lynx Point ports to EHCI on shutdown
Date: Mon, 06 Jan 2014 14:34:28 +0200 [thread overview]
Message-ID: <52CAA2D4.2040103@compulab.co.il> (raw)
In-Reply-To: <20140103000334.GE9621@xanatos>
Hi Sarah,
On 01/03/2014 02:03 AM, Sarah Sharp wrote:
> Denis, do all of Compulab's Haswell systems reboot on shutdown? Are
> they all running a Phoenix BIOS? Can you send me the output of `sudo
> lspci -vvv -s` for the xHCI host?
oem@oem-Intense-PC2 ~ $ sudo lspci -vvv -s 00:14.0
00:14.0 USB controller: Intel Corporation Lynx Point-LP USB xHCI HC (rev 04) (prog-if 30 [XHCI])
Subsystem: Intel Corporation Device 7270
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 59
Region 0: Memory at f0620000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [70] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
Address: 00000000fee0200c Data: 41b1
Kernel driver in use: xhci_hcd
> Basically, I'm trying to find a common variable to key off. I suspect
> BIOS vendor is probably the right thing, instead of system vendor.
By the way the quirk introduced by commit e95829f474f0db3a4d940cae1423783edd966027 "xhci: Switch PPT
ports to EHCI on shutdown." works for Lynx Point as well at least on Intense-PC2. I mean we can add
XHCI_SPURIOUS_REBOOT flag that invokes usb_disable_xhci_ports().
May be this solution works for HP and other systems without side effects?
Denis
next prev parent reply other threads:[~2014-01-06 12:34 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-19 16:29 xhci: Switch Intel Lynx Point ports to EHCI on shutdown Denis Turischev
2013-12-19 16:38 ` Greg KH
2013-12-19 17:07 ` [PATCH v1] " Denis Turischev
2013-12-19 18:21 ` Sarah Sharp
2013-12-20 10:41 ` Denis Turischev
2013-12-20 23:45 ` Sarah Sharp
2013-12-21 16:45 ` Holger Freyther
2013-12-22 7:47 ` Denis Turischev
2014-01-03 0:03 ` Sarah Sharp
2014-01-03 3:40 ` littlebat
2014-01-03 18:14 ` Oliver Neukum
2014-01-03 19:34 ` art1
2014-01-06 12:34 ` Denis Turischev [this message]
2014-01-07 10:03 ` Takashi Iwai
2014-01-07 23:11 ` Sarah Sharp
2014-01-08 12:57 ` Denis Turischev
2014-02-04 11:10 ` [PATCH] " Denis Turischev
2014-02-18 7:42 ` [RESEND] " Denis Turischev
2014-02-18 18:54 ` Sarah Sharp
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