Commit Graph

126964 Commits

Author SHA1 Message Date
Bryan Wu
085ad4067b USB: musb: add Blackfin Kconfig options and Makefile
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:08 -08:00
Bryan Wu
c6cf8b003e USB: musb: add Blackfin specific configuration to MUSB
Some config registers are not avaiable in Blackfin, we have to comment them out.

v1-v2:
 - remove Blackfin specific header file
 - add Blackfin register version to musb_regs.h header file

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:07 -08:00
Bryan Wu
6995eb68aa USB: musb: enable low level DMA operation for Blackfin
- DMA registers in Blackfin have different layout
- DMA interrupt flags need to be cleared by software

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:07 -08:00
Bryan Wu
2c557a4a98 USB: musb: add Blackfin version low level register accessing helper functions
add Blackfin version low level register accessing helper functions

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:07 -08:00
Robin Getz
d426e60dbf USB: musb: Make sure we program the correct values in only when necessary.
Make sure we program the correct values in only when necessary.

Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:07 -08:00
Bryan Wu
0c6a881844 USB: musb: add Blackfin driver to MUSB framework (v2)
- replace MUSB_FIFOSIZE register to MUSB_TXCOUNT, cause no MUSB_FIFOSIZE
   register on Blackfin
- use #ifdef to replace #if defined()

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:07 -08:00
Bryan Wu
2ffcdb3bda USB: musb: use new platform data interface of musb to replace old one
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:06 -08:00
Alan Stern
c20b15fde5 USB: usb-storage: merge DPCM support into SDDR09
The DPCM subdriver is a little peculiar, in that it's meant to support
devices where LUN 0 is Compact Flash and uses the CB transport whereas
LUN 1 is SmartMedia and uses the SDDR09 transport.  Thus DPCM isn't
really a transport in itself; it's more like a demultiplexer.

Much of the DPCM code is part of the SDDR09 subdriver already, and the
remaining part is fairly small.  This patch (as1182) moves that extra
piece into sddr09.c, thereby eliminating dpcm.c.  Also eliminated is
the Kconfig entry for DPCM support; it is now listed as part of the
SDDR09 entry.

In order to make sure that the semantics are the same as before, each
unusual_devs entry for DPCM is now present twice: once with DPCM
support if SDDR09 is configured (as before), and once with the
SINGLE_LUN flag and CB support otherwise.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:06 -08:00
Greg Kroah-Hartman
f1632df36b USB: option: increase outgoing buffer size and number
This should speed up the option driver's upload speed quite a bit.  It has been tested by a number of different people on different devices with success.

Cc: Roland Wolters <roland.wolters@credativ.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:06 -08:00
Greg Kroah-Hartman
50de36f7af USB: serial: fix up urb->status usage
Some of the usb-serial drivers are starting to use urb->status in ways
they should not be doing.  This fixes up some of them to prevent that.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:06 -08:00
Karl Bongers
6013bbbab0 USB: isp1760: Fix probe in PCI glue code
Contains fixes so probe on x86 PCI runs, apparently I'm first to try
this. Several fixes to memory access to probe host scratch register.
Previously would bug check on chip_addr var used uninitialized.
Scratch reg write failed in one instance due to 16-bit initial access
mode, so added "& 0x0000ffff" to the readl as fix.
Includes some general cleanup - remove global vars, organize memory map
resource use.

Signed-off-by: Karl Bongers <kbongers@jged.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:04 -08:00
Sebastian Andrzej Siewior
6c0735687d USB: isp1760: use a specific PLX bridge instead of any bdridge
this driver can't handle (of course) any brdige class devices. So we
now are just active on one specific bridge which should be only the
isp1761 chip behind a PLX bridge.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Karl Bongers <kblists08@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:04 -08:00
Felipe Balbi
889394b1eb USB: gadget: don't wait for completion twice
In some obscure scenarios e.g. passing a 0-byte backing file
storage, wait_for_completion() would wait forever in fsg_cleanup().

Prevent it by completing the thread in fsg_bind() error path.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:03 -08:00
Roel Kluin
619b572ae2 USB: serial: usb_debug: Make static
Sparse asked whether these could be static.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:03 -08:00
Alan Stern
65bfd2967c USB: Enhance usage of pm_message_t
This patch (as1177) modifies the USB core suspend and resume
routines.  The resume functions now will take a pm_message_t argument,
so they will know what sort of resume is occurring.  The new argument
is also passed to the port suspend/resume and bus suspend/resume
routines (although they don't use it for anything but debugging).

In addition, special pm_message_t values are used for user-initiated,
device-initiated (i.e., remote wakeup), and automatic suspend/resume.
By testing these values, drivers can tell whether or not a particular
suspend was an autosuspend.  Unfortunately, they can't do the same for
resumes -- not until the pm_message_t argument is also passed to the
drivers' resume methods.  That will require a bigger change.

IMO, the whole Power Management framework should have been set up this
way in the first place.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:03 -08:00
Alan Stern
4ec06d6296 USB: utilize round_jiffies_up_relative()
This patch (as1178) uses the new round_jiffies_up_relative() routine
for setting the autosuspend delayed_work timer.  It's appropriate
since we don't care too much about the exact length of the delay, but
we don't want it to be too short (rounded down).

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:03 -08:00
Tony Lindgren
3cb22d6586 USB: otg: sharable otg transceiver ops
Move otg_get/set/put_transceiver() from omap specific code
to common otg.c so other upcoming drivers can share them.

[ dbrownell@users.sourceforge.net: move to drivers/usb/otg, dox ]

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Felipe Balbi <me@felipebalbi.com>
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:03 -08:00
Philipp Zabel
68144e0cc9 USB: otg: add otg_put_transceiver()
As Russell King points out, calling put_device(otg_transceiver->dev)
directly in driver cleanup paths makes assumptions about otg_transceiver
internals.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:02 -08:00
Philipp Zabel
6084f1bf0c USB: otg: gpio_vbus transceiver stub
gpio_vbus provides simple GPIO VBUS sensing for peripheral
controllers with an internal transceiver.
Optionally, a second GPIO can be used to control D+ pullup.

It also interfaces with the regulator framework to limit charging
currents when powered via USB. gpio_vbus requests the regulator
supplying "vbus_draw" and can enable/disable it or limit its
current depending on USB state.

[dbrownell@users.sourceforge.net: use drivers/otg, cleanups ]

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:02 -08:00
David Brownell
b8da8677d4 USB: move isp1301_omap to drivers/usb/otg
This moves the isp1301-omap driver from the drivers/i2c/chips
directory (which will be shrinking) into a new drivers/usb/otg
directory (which will grow, with more drivers and utilities).

Note that OTG infrastructure needs to be initialized before
either host or peripheral side USB support, and may be needed
before for pure host or pure peripheral configurations.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:02 -08:00
Ben Dooks
ea99ecfdc8 USB: gadget: s3c2410_udc uses standard GPIO calls
Change the gpio code in the s3c2410_udc to use the
generic gpio calls instead of the s3c24xx specific
gpio functions.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:02 -08:00
David Brownell
b40fc2a256 USB: gadget: pxa25x_udc vbus sense initialization
Some code in the pxa25x_udc driver wrongly expects the value
of is_vbus_present() to be 0/1, not zero/nonzero ... cope.
Issue noted by Jaya Kumar <jayakumar.lkml@gmail.com>

This bug has been around since July 2007, and has a simple
workaround:  unplug the Linux gadget, then re-plug it.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Jaya Kumar <jayakumar.lkml@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:02 -08:00
Felipe Balbi
c48a515525 USB: musb: check if set_irq_wake succeded and remember it
Without it, in platforms that don't provide irq_chip.set_wake(),
like omap, musb will WARN() on driver removal.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:01 -08:00
Felipe Balbi
b6a49b8490 USB: musb: Add musb git tree to maintainers entry
Trivial patch adding musb's git tree to MAINTAINERS file.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:01 -08:00
David Brownell
bb1c9ef1b4 USB: musb: host side diagnostics tweaks
Random host-side MUSB updates, mostly relating to better diagnostics:

 + Improve diagnostics on host side:
    - tx flush fifo:
       * Avoid hundreds of duplicate TX FIFONOTEMPTY messages
       * make "Can't flush TX fifo" a warning, and say which endpoint
    - giveback:
       * use correct status code
       * show completion function name not just URB pointer
    - Fix annoying "1 bytes" (should be "1 byte")

 + Be more consistent about failing init of unusable fifo_mode

It's not clear why that "can't flush TX fifo" message appears, though
it might relate to disconnection; I see it not infrequently

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:59 -08:00
David Brownell
71783e0def USB: musb: minor locking fix
Minor locking fix for musb_hdrc on OMAP3 and OMAP2430:
don't read DEVCTL without holding the spinlock, since
an IRQ could come in and corrupt things.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:59 -08:00
Kevin Hilman
58e660266d USB: musb: build fixes for DaVinci
- update includes after asm/arch --> mach headers move
- adds musb_platform_set_mode() stub

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:58 -08:00
David Brownell
96a274d1da USB: musb: sysfs mode updates
Fix three omissions in the "mode" sysfs attribute support:
  (a) inability to report errors;
  (b) no DaVinci support ... just report an error;
  (c) for omap2430, accepting unsupportable values

The 2430 stuff is still odd....

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:58 -08:00
David Lopo
aa69a8093f USB: gadget: MIPS ci13xxx_udc
MIPS USB IP core family device controller
Currently it only supports IP part number CI13412.

[dbrownell@users.sourceforge.net: minor comment tweaks]

Signed-off-by: David Lopo <dlopo@chipidea.mips.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:58 -08:00
Julia Lawall
bb9496c6f7 USB: gadget: change simple_strtol to simple_strtoul
Since num is unsigned, it would seem better to use simple_strtoul that
simple_strtol.

A simplified version of the semantic patch that makes this change is as
follows: (http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r2@
long e;
position p;
@@

e = simple_strtol@p(...)

@@
position p != r2.p;
type T;
T e;
@@

e = 
- simple_strtol@p
+ simple_strtoul
  (...)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:58 -08:00
Rusty Russell
785895ff1f USB: Don't use __module_param_call; use core_param.
Impact: cleanup

Found this when I changed args to __module_param_call.  We now have
core_param for exactly this, but Greg assures me "nousb" is used as a
module parameter, so we need the #ifdef MODULE.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:58 -08:00
Alan Stern
96983d2d86 USB: storage: set bounce limit for non-DMA-capable host controllers
This patch (as1175) makes usb-storage set a SCSI device's
request-queue bounce limit such that all buffers will be located in
addressable memory (i.e., not in high memory) if the host controller's
dma_mask is NULL.  This is necessary when the host controller doesn't
support DMA: If a buffer is in high memory then the both the virtual
and DMA addresses produced by the scatter-gather library will be NULL,
preventing the HCD from accessing the buffer's data.

In particular, the isp1760 driver needs this when used on a system
with more than 1 GB of memory.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Tested-by: Thomas Hommel <Thomas.Hommel@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:57 -08:00
Alan Stern
3dae534531 USB: usb-storage: merge ATAPI and QIC-157 protocol routines
This patch (as1174) merges usb-storage's QIC-157 and ATAPI protocol
routines.  Since the two functions are identical, there's no reason to
keep them separate.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:57 -08:00
Alan Stern
64648a9dc4 USB: usb-storage: merge CB and CBI transport routines
This patch (as1173) merges usb-storage's CB and CBI transports into a
single routine.  So much of their code is common, it's silly to keep
them separate.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:57 -08:00
Alan Stern
12aae68a20 USB: g_file_storage: add CD-ROM emulation
This patch (as1172) adds the ability to emulate a CD-ROM drive to
g_file_storage.  The emulation is limited, since it presents as a disc
containing a single data track and no audio tracks.  Still, it may
come in useful on occasion.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:57 -08:00
Ben Efros
dbe6e0c023 USB: storage: Flag devices known to support SANE_SENSE
Add a few devices known to have support for larger sense buffers.
Supporting SANE_SENSE does not necessarily mean SAT-1 or SAT-2 is fully
supported.

Depends on SANE_SENSE patch [1].  Incorporates the Maxtor and Western
Digital devices originally submitted by Matthieu CASTET [2]. 

[1] https://lists.one-eyed-alien.net/pipermail/usb-storage/2008-November/004181.html
[2] http://marc.info/?l=linux-usb&m=121762869915609&w=2

Signed-off-by: Ben Efros <ben@pc-doctor.com>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:57 -08:00
Ben Efros
1537e0ad94 USB: storage devices and SAT
Add the SANE SENSE flag to indicate that a device is capable of handling
more than 18-bytes of sense data.  This functionality is required for
USB-ATA bridges implementing SAT.  A future patch will actually enable this
function for several devices.

The logic behind this is that we can detect support for SANE_SENSE in a few ways:
 1) ATA PASS THROUGH (12) or (16) execute successfully
 2) SPC-3 or higher is in use
 3) A previous CHECK CONDITION occurred with sense format 70-73 and had
    a length greater than 18-bytes total

Signed-off-by: Ben Efros <ben@pc-doctor.com>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:55 -08:00
Alan Stern
a658367dae USB: usb-storage: remove us->sensebuf
This patch (as1171) removes us->sensebuf, since it isn't used anywhere.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:54 -08:00
Alan Stern
f9dc8f99e5 usb-storage: clean up unusual_devs.h
This patch (as1170) removes some duplicate entries in unusual_devs.h
and rearranges a few others to put the list in proper numerical order.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:54 -08:00
Alan Stern
6cd132015d USB: announce new devices earlier
This patch (as1166) changes usb_new_device().  Now new devices will be
announced in the log _prior_ to being registered; this way the "new
device" lines will appear before all the output from driver probing,
which seems much more logical.

Also, the patch adds a call to usb_stop_pm() to the failure pathway,
so that the parent's count of unsuspended children will remain correct
if registration fails.  In order for this to work properly, the code
to increment that count has to be moved forward, before the first
point where a failure can occur.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:54 -08:00
Pete Zaitcev
f150fa1afb USB: Allow usbmon as a module even if usbcore is builtin
usbmon can only be built as a module if usbcore is a module too. Trivial
changes to the relevant Kconfig and Makefile (and a few trivial changes
elsewhere) allow usbmon to be built as a module even if usbcore is
builtin.

This is verified to work in all 9 permutations (3 correctly prohibited
by Kconfig, 6 build a suitable result).

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:54 -08:00
Qinghuang Feng
5e5b0e5d6a USB: serial: ipw.c: mark {__init|__exit} for usb_ipw_{init|exit}
mark {__init|__exit} for usb_ipw_{init|exit} ()

Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:54 -08:00
Qinghuang Feng
1c53e6cb80 USB: gadget: pxa27x_udc.c: cleanup kernel-doc
no argument named @index in pio_irq_disable, and
no argument named @req in inc_ep_stats_bytes,
remove them.

Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:54 -08:00
Magnus Damm
0a2e5b9b8a USB: m66592 and r8a66597 resource changes
Use the more common platform_get_resource() together with index instead
of depending on the resource name and platform_get_resource_by_name().
Replace the resource_len() implementation with resource_size().

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:53 -08:00
Jean Delvare
3a407e7391 USB: Convert ohci-pnx4008 to a new-style i2c driver
The legacy i2c binding model will go away soon, convert ohci-pnx4008
to use the new binding model instead.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:53 -08:00
Inaky Perez-Gonzalez
dc023dceec USB: Introduce usb_queue_reset() to do resets from atomic contexts
This patch introduces a new call to be able to do a USB reset from an
atomic contect. This is quite helpful in USB callbacks to handle
errors (when the only thing that can be done is to do a device
reset).

It is done queuing a work struct that will do the actual reset. The
struct is "attached" to an interface so pending requests from an
interface are removed when said interface is unbound from the driver.

The call flow then becomes:

usb_queue_reset_device()
  __usb_queue_reset_device() [workqueue]
    usb_reset_device()

usb_probe_interface()
  usb_cancel_queue_reset()      [error path]

usb_unbind_interface()
  usb_cancel_queue_reset()

usb_driver_release_interface()
  usb_cancel_queue_reset()

Note usb_cancel_queue_reset() needs smarts to try not to unqueue when
it is actually being executed. This happens when we run the reset from
the workqueue: usb_reset_device() is called and on interface unbind
time, usb_cancel_queue_reset() would be called. That would deadlock on
cancel_work_sync(). To avoid that, we set (before running
usb_reset_device()) usb_intf->reset_running and clear it inmediately
after returning.

Patch is against 2.6.28-rc2 and depends on
http://marc.info/?l=linux-usb&m=122581634925308&w=2 (as submitted by
Alan Stern).

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:53 -08:00
Alan Stern
9ac39f28b5 USB: add asynchronous autosuspend/autoresume support
This patch (as1160b) adds support routines for asynchronous autosuspend
and autoresume, with accompanying documentation updates.  There
already are several potential users of this interface, and others are
likely to arise as autosuspend support becomes more widespread.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:53 -08:00
Alan Stern
d4f373e57d USB: usb-storage: add "quirks=" module parameter
This patch (as1163b) adds a "quirks=" module parameter to usb-storage.
This will allow people to make short-term changes to their
unusual_devs list without rebuilding the entire driver.  Testing will
become much easier, and less-sophisticated users will be able to
access their buggy devices after a simple config-file change instead
of having to wait for a new kernel release.

The patch also adds a documentation entry for usb-storage's
"delay_use" parameter, which has been around for years but but was
never listed among the kernel parameters.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:53 -08:00
Kay Sievers
74c71ebd8d oxu210hp-hcd.c: struct device - replace bus_id with dev_name(), dev_set_name()
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:52 -08:00
Kay Sievers
427c4f3334 usb: struct device - replace bus_id with dev_name(), dev_set_name()
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:52 -08:00