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* USB: make printk messages more searchableWu Fengguang2009-01-071-21/+24
| | | | | | | | | | | USB: make printk messages more searchable Make USB printk messages long and straightforward. One of these decorated USB error messages cost me non-trivial efforts to locate. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: musb: Kill some compiling warning in musb Blackfin partBryan Wu2009-01-071-6/+8
| | | | | | | 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>
* USB: musb: Blackfin provides read/write I/O accessor in header filesBryan Wu2009-01-071-1/+1
| | | | | | | | | Don't redefine the functions in musb driver 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>
* USB: musb: add Blackfin Kconfig options and MakefileBryan Wu2009-01-073-4/+20
| | | | | | | 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>
* USB: musb: add Blackfin specific configuration to MUSBBryan Wu2009-01-074-144/+397
| | | | | | | | | | | | | 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>
* USB: musb: enable low level DMA operation for BlackfinBryan Wu2009-01-072-69/+162
| | | | | | | | | | - 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>
* USB: musb: add Blackfin version low level register accessing helper functionsBryan Wu2009-01-071-0/+24
| | | | | | | | | 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>
* USB: musb: Make sure we program the correct values in only when necessary.Robin Getz2009-01-071-6/+8
| | | | | | | | | | 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>
* USB: musb: add Blackfin driver to MUSB framework (v2)Bryan Wu2009-01-072-0/+368
| | | | | | | | | | | - 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>
* USB: musb: use new platform data interface of musb to replace old oneBryan Wu2009-01-071-0/+5
| | | | | | | 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>
* USB: usb-storage: merge DPCM support into SDDR09Alan Stern2009-01-078-134/+69
| | | | | | | | | | | | | | | | | | | | | | | 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>
* USB: option: increase outgoing buffer size and numberGreg Kroah-Hartman2009-01-071-2/+2
| | | | | | | | 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>
* USB: serial: fix up urb->status usageGreg Kroah-Hartman2009-01-076-65/+68
| | | | | | | | 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>
* USB: isp1760: Fix probe in PCI glue codeKarl Bongers2009-01-071-42/+55
| | | | | | | | | | | | | | | | 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>
* USB: isp1760: use a specific PLX bridge instead of any bdridgeSebastian Andrzej Siewior2009-01-071-6/+10
| | | | | | | | | | | | 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>
* USB: gadget: don't wait for completion twiceFelipe Balbi2009-01-071-0/+1
| | | | | | | | | | | | 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>
* USB: serial: usb_debug: Make staticRoel Kluin2009-01-071-1/+1
| | | | | | | | 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>
* USB: Enhance usage of pm_message_tAlan Stern2009-01-0711-63/+74
| | | | | | | | | | | | | | | | | | | | | | 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>
* USB: utilize round_jiffies_up_relative()Alan Stern2009-01-071-2/+2
| | | | | | | | | | | 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>
* USB: otg: sharable otg transceiver opsTony Lindgren2009-01-073-43/+71
| | | | | | | | | | | | | | 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>
* USB: otg: add otg_put_transceiver()Philipp Zabel2009-01-073-2/+9
| | | | | | | | | | | 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>
* USB: otg: gpio_vbus transceiver stubPhilipp Zabel2009-01-074-0/+383
| | | | | | | | | | | | | | | | | | 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>
* USB: move isp1301_omap to drivers/usb/otgDavid Brownell2009-01-077-13/+42
| | | | | | | | | | | | | | | 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>
* USB: gadget: s3c2410_udc uses standard GPIO callsBen Dooks2009-01-071-12/+22
| | | | | | | | | | | 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>
* USB: gadget: pxa25x_udc vbus sense initializationDavid Brownell2009-01-071-1/+1
| | | | | | | | | | | | | | 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>
* USB: musb: check if set_irq_wake succeded and remember itFelipe Balbi2009-01-072-2/+7
| | | | | | | | | 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>
* USB: musb: Add musb git tree to maintainers entryFelipe Balbi2009-01-071-0/+1
| | | | | | | | 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>
* USB: musb: host side diagnostics tweaksDavid Brownell2009-01-072-11/+15
| | | | | | | | | | | | | | | | | | | | | | | 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>
* USB: musb: minor locking fixDavid Brownell2009-01-071-2/+2
| | | | | | | | | | | 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>
* USB: musb: build fixes for DaVinciKevin Hilman2009-01-071-3/+9
| | | | | | | | | | - 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>
* USB: musb: sysfs mode updatesDavid Brownell2009-01-075-11/+32
| | | | | | | | | | | | | | 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>
* USB: gadget: MIPS ci13xxx_udcDavid Lopo2009-01-075-0/+3051
| | | | | | | | | | | | 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>
* USB: gadget: change simple_strtol to simple_strtoulJulia Lawall2009-01-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* USB: Don't use __module_param_call; use core_param.Rusty Russell2009-01-071-2/+6
| | | | | | | | | | | | | 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>
* USB: storage: set bounce limit for non-DMA-capable host controllersAlan Stern2009-01-071-0/+8
| | | | | | | | | | | | | | | | | | | | 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>
* USB: usb-storage: merge ATAPI and QIC-157 protocol routinesAlan Stern2009-01-073-27/+6
| | | | | | | | | | | 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>
* USB: usb-storage: merge CB and CBI transport routinesAlan Stern2009-01-073-55/+10
| | | | | | | | | | | 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>
* USB: g_file_storage: add CD-ROM emulationAlan Stern2009-01-071-22/+154
| | | | | | | | | | | 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>
* USB: storage: Flag devices known to support SANE_SENSEBen Efros2009-01-071-4/+37
| | | | | | | | | | | | | | | | | 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>
* USB: storage devices and SATBen Efros2009-01-073-3/+46
| | | | | | | | | | | | | | | | | | | 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>
* USB: usb-storage: remove us->sensebufAlan Stern2009-01-072-9/+0
| | | | | | | | | 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>
* usb-storage: clean up unusual_devs.hAlan Stern2009-01-071-57/+39
| | | | | | | | | 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>
* USB: announce new devices earlierAlan Stern2009-01-071-6/+7
| | | | | | | | | | | | | | | | | 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>
* USB: Allow usbmon as a module even if usbcore is builtinPete Zaitcev2009-01-075-14/+12
| | | | | | | | | | | | | | | 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>
* USB: serial: ipw.c: mark {__init|__exit} for usb_ipw_{init|exit}Qinghuang Feng2009-01-071-2/+2
| | | | | | | | 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>
* USB: gadget: pxa27x_udc.c: cleanup kernel-docQinghuang Feng2009-01-071-2/+0
| | | | | | | | | | 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>
* USB: m66592 and r8a66597 resource changesMagnus Damm2009-01-072-11/+6
| | | | | | | | | | | 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>
* USB: Convert ohci-pnx4008 to a new-style i2c driverJean Delvare2009-01-071-49/+36
| | | | | | | | | 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>
* USB: Introduce usb_queue_reset() to do resets from atomic contextsInaky Perez-Gonzalez2009-01-074-2/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* USB: add asynchronous autosuspend/autoresume supportAlan Stern2009-01-076-7/+117
| | | | | | | | | | | 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>