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2007-05-09[MTD] [MAPS] Remove flash maps for no longer supported 405LP boardsDavid Gibson
drivers/mtd/maps includes flash maps for the Beech and Arctic PowerPC 405LP based boards. However, the 405LP was discontinued before any quantity were distributed and those boards no longer have kernel support in general. Therefore, this patch removes this obsolete code. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-09[MTD] [MAPS] Fix missing printk() parameter in physmap_of.c MTD driverDavid Gibson
Squashes a compiler warning, and provides more useful information in the case messed up device tree information. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-08[MTD] [NAND] platform NAND driver: add driverVitaly Wool
This patch adds support for generic platform NAND driver. Updated after tglx's review/discussion in IRC #mtd channel. Signed-off-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-08[MTD] [NAND] platform NAND driver: update headerVitaly Wool
This patch extends nand.h in order to enable platform NAND driver. Signed-off-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-08[JFFS2] Simplify and clean up jffs2_add_tn_to_tree() some more.David Woodhouse
Fixing at least a couple more bugs in the process. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-07[JFFS2] Remove another bogus optimisation in jffs2_add_tn_to_tree()David Woodhouse
We attempted to insert new nodes into the tree by just using rb_replace_node to let them replace an earlier node which they completely overlapped. However, that could place the new node into the wrong place in the tree, since its start could be node only before the start of the victim, but before the node _before_ the victim in the tree (if that previous node actually ends _after_ the new node, thus isn't entirely overlapped and wasn't itself chosen to be the victim). Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-06[JFFS2] Remove broken insert_point optimisation in jffs2_add_tn_to_tree()David Woodhouse
The original code would remember, during the first pass over the tree, a suitable place to start the insertion from when we eventually come to add a new node. The optimisation was broken, and we sometimes ended up inserting a new node in the wrong place because we started the insertion from the wrong point. Just ditch the optimisation and start the insertion from the root of the tree, for now. I'll try it again when I'm feeling cleverer. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-05[JFFS2] Remember to calculate overlap on nodes which replace older nodesDavid Woodhouse
This fixes a problem Artem found with the integck test tool -- we weren't correctly keeping track of the 'overlap' flag in some cases, which led to the nodes being played back in an incorrect order and file corruption. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-05[JFFS2] Don't advance c->wbuf_ofs to next eraseblock after wbuf flushDavid Woodhouse
After flushing the last page of an eraseblock, don't leave the wbuf 'offset' field pointing at the start of the next physical eraseblock. This was causing a BUG() on NOR-ECC (Sibley) flash, where we start writing a little further in, after the cleanmarker. Debugged by Alexander Belyakov <abelyako@googlemail.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-03[MTD] [NAND] at91_nand.c: CMDLINE_PARTS supportAndrew Victor
This patch allows you to specify at91_nand partitions on the kernel command line using the mtdparts variable, if CONFIG_MTD_CMDLINE_PARTS is set. Signed-off-by: Frank Mandarino <fmandarino@endrelia.com> Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-03[MTD] [NAND] Tidy up handling of page number in nand_block_bad()Thomas Knobloch
Further to the previous patch fixing the calculation of page number, both branches are using the same result. Clean up the function accordingly, calculating it (and also masking with pagemask) only in one place. Signed-off-by: Thomas Knobloch <knobloch@siemens.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-02[MTD] block2mtd_paramline[] mustn't be __initdataAdrian Bunk
block2mtd_paramline[] is used in the non-__init block2mtd_setup() Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Joern Engel <joern@lazybastard.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-02[MTD] [NAND] Support multiple chips in CAFÉ driverDavid Woodhouse
The CAFÉ can handle two chip on separate chipselect lines. Hook up the undocumented chipselect bits in the driver and probe both. In the case of OLPC, it's not actually two separate devices -- it's a single '1GiB' package with two 512MiB dies internally. So clear the NAND_BBT_PERCHIP flag to treat it as a single chip for BBT purposes, and make life easier for the firmware. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-02[MTD] [NAND] Rename cafe.c to cafe_nand.c and remove the multi-obj magicDavid Woodhouse
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-02[MTD] [NAND] Use rslib for CAFÉ ECCSegher Boessenkool
Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-02[RSLIB] Support non-canonical GF representationsSegher Boessenkool
For the CAFÉ NAND controller, we need to support non-canonical representations of the Galois field. Allow the caller to provide its own function for generating the field, and CAFÉ can use rslib instead of its own implementation. Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-02[JFFS2] Remove dead file histo_mips.hDavid Woodhouse
Its contents were subsumed into compr_rubin.c in a previous commit, but I forgot to git-rm it. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-05-02[MTD] Add Kyungmin Park to MAINTAINERS for OneNANDThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-27Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: (46 commits) [MTD] [MAPS] drivers/mtd/maps/ck804xrom.c: convert pci_module_init() [MTD] [NAND] CM-x270 MTD driver [MTD] [NAND] Wrong calculation of page number in nand_block_bad() [MTD] [MAPS] fix plat-ram printk format [JFFS2] Fix compr_rubin.c build after include file elimination. [JFFS2] Handle inodes with only a single metadata node with non-zero isize [JFFS2] Tidy up licensing/copyright boilerplate. [MTD] [OneNAND] Exit loop only when column start with 0 [MTD] [OneNAND] Fix access the past of the real oobfree array [MTD] [OneNAND] Update Samsung OneNAND official URL [JFFS2] Better fix for all-zero node headers [JFFS2] Improve read_inode memory usage, v2. [JFFS2] Improve failure mode if inode checking leaves unchecked space. [JFFS2] Fix cross-endian build. [MTD] Finish conversion mtd_blkdevs to use the kthread API [JFFS2] Obsolete dirent nodes immediately on unlink, where possible. Use menuconfig objects: MTD [MTD] mtd_blkdevs: Convert to use the kthread API [MTD] Fix fwh_lock locking [JFFS2] Speed up mount for directly-mapped NOR flash ...
2007-04-27[MTD] [MAPS] drivers/mtd/maps/ck804xrom.c: convert pci_module_init()Adrian Bunk
This patch converts the pci_module_init() usage to pci_register_driver(). It's currently #if 0'ed, but still not a bad idea to change it. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-27[MTD] [NAND] CM-x270 MTD driverMike Rapoport
This patch provides MTD support for NAND flash devices on CM-x270 modules. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-27Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (78 commits) USB: update MAINAINERS and CREDITS for Freescale USB driver USB: update gadget files for fsl_usb2_udc driver USB: add Freescale high-speed USB SOC device controller driver USB: quirk for broken suspend of IT8152F/G USB: iowarrior.c: timeouts too small in usb_control_msg calls USB: dell device id for option.c USB: Remove Huawei unusual_devs entry USB: CP2101 New Device IDs USB: add picdem device to ldusb usbfs micro optimitation USB: remove ancient/broken CRIS hcd usb ethernet gadget, workaround network stack API glitch USB: add "busnum" attribute for USB devices USB: cxacru: ADSL state management usbatm: Detect usb device shutdown and ignore failed urbs USB: Remove duplicate define of OHCI_QUIRK_ZFMICRO USB: BandRich BandLuxe HSDPA Data Card Driver USB gadget rndis: fix struct rndis_packet_msg_type unaligned bug USB Elan FTDI: check for driver registration status USB: sierra: add more checks on shutdown ...
2007-04-27Merge branch 'master' of ↵Linus Torvalds
ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb * 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (184 commits) V4L/DVB (5563): Radio-maestro.c Replace radio_ioctl to use video_ioctl2 V4L/DVB (5562): Radio-gemtek-pci.c Replace gemtek_pci_ioctl to use video_ioctl2 V4L/DVB (5560): Ivtv: fix incorrect bitwise-and for command flags. V4L/DVB (5558): Opera: use 7-bit i2c addresses V4L/DVB (5557): Cafe_ccic: check return value of pci_enable_device V4L/DVB (5556): Radio-gemtek.c Replace gemtek_ioctl to use video_ioctl2 V4L/DVB (5555): Radio-aimslab.c Replace rt_ioctl to use video_ioctl2 V4L/DVB (5554): Fix: vidioc_g_parm were not zeroing the memory V4L/DVB (5553): Replace typhoon_do_ioctl to use video_ioctl2 V4L/DVB (5552): Plan-b: Switch to refcounting PCI API V4L/DVB (5551): Plan-b: header change V4L/DVB (5550): Radio-sf16fmi.c Replace fmi_do_ioctl to use video_ioctl2 V4L/DVB (5549): Radio-sf16fmr2.c Replace fmr2_do_ioctl to use video_ioctl2 V4L/DVB (5548): Fix v4l2 buffer to the length V4L/DVB (5547): Add ENUM_FRAMESIZES and ENUM_FRAMEINTERVALS ioctls V4L/DVB (5546): Radio-terratec.c Replace tt_do_ioctl to use video_ioctl2 V4L/DVB (5545): Saa7146: Release capture buffers on device close V4L/DVB (5544): Budget-av: Make inversion setting configurable, add KNC ONE V1.0 card V4L/DVB (5543): Tda10023: Add support for frontend TDA10023 V4L/DVB (5542): Budget-av: Remove polarity switching of the clock for DVB-C ...
2007-04-27USB: update MAINAINERS and CREDITS for Freescale USB driverLi Yang
Add MAINAINERS and CREDITS entry for Freescale Highspeed USB device driver. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: update gadget files for fsl_usb2_udc driverLi Yang
Update gadget_chip.c, ether.c for newly added Freescale Highspeed USB device driver. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: add Freescale high-speed USB SOC device controller driverLi Yang
Freescale high-speed USB SOC can be found on some Freescale processors among different architectures. It supports both host and device functions. This driver adds its device support for Linux USB Gadget layer. It is tested on MPC8349 and MPC8313, but should work on other platforms with minor tweaks. The driver passed USBCV 1.3 compliance tests. Note that this driver doesn't yet include OTG support. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Jiang Bo <tanya.jiang@freescale.com> Signed-off-by: Bruce Schmid <duck@freescale.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: quirk for broken suspend of IT8152F/GRaphael Assenat
Here's a patch which adds my device to the list. This patch enables the broken suspend quirk for the PCI OHCI controller present in the IT8152F/G RISC-to-PCI Companion Chip. Signed-off-by: Raphael Assenat <raph@8d.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: iowarrior.c: timeouts too small in usb_control_msg callsEberhard Fahle
The driver uses usb_control_msg() for exchanging data with the device. When the driver lived freeley _outside_ the kernel tree (pre 2.6.21) the timeouts for these calls where set to 5*HZ for reading, 1HZ for writing. (These timeouts seemed to work fine for all users of the driver, at least nobody complained in the last 2 years. The current code (2.6.21-rc5) removed the 'HZ' from the timeouts and left the driver with 5 jiffies for reading and 1 jiffy for writing. My new machine is fast, but not that fast. The patch also removes a useless debug statement, which was left over from testing a broken firmware version From: Eberhard Fahle <e.fahle@wayoda.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: dell device id for option.cHans Engelen
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: Remove Huawei unusual_devs entryPhil Dibowitz
Per the Rui Santos and the hardware manufacturers, this actually inhibits useful parts of the hardware. The correct way to use this hardware is with the software at http://www.kanoistika.sk/bobovsky/archiv/umts/ and the manufacturers are also planning on including Linux drivers/material in future revisions. CC: Rui Santos <rsantos@grupopie.com> CC: <johann.wilhelm@student.tugraz.at> CC: <zihan@huawei.com> CC: <wanganyu1983@huawei.com> CC: <dingjianjian@huawei.com> Signed-off-by: Phil Dibowitz <phil@ipom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: CP2101 New Device IDsCraig Shelley
Two new device IDs for CP2101 driver. Signed-off-by: Craig Shelley <craig@microtron.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: add picdem device to ldusbJoey Goncalves
Hi Greg: I have found that /drivers/usb/misc/ldusb.c works with the "PICDEM Full Speed USB" http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en021940 Signed-off-by: Joey S Goncalves <jgoncalves@peragrin.com> Cc: Michael Hund <MHund@LD-Didactic.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27usbfs micro optimitationOliver Neukum
the memory barrier is needed only with smp. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: remove ancient/broken CRIS hcdDavid Brownell
Remove the old crisv10 HCD ... it can't have built for some time, doesn't even have a Kconfig entry, was the last driver not to have been converted to the "hcd" framework, and considering the usbcore changes since its last patch was merged, has just got to buggy as all get-out. I'm told Axis has a new driver, and will be submitting it soon. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27usb ethernet gadget, workaround network stack API glitchErik Hovland
Another workaround for the glitch in the network layer, whereby one call ignores the (otherwise kernel-wide) convention that free() calls should not oops when passed nulls. This code already handles that API glitch in most other paths. From: Erik Hovland <erik@hovland.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: add "busnum" attribute for USB devicesAlan Stern
This patch (as903) adds a "busnum" sysfs attribute for USB devices. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: cxacru: ADSL state managementSimon Arlott
The device has commands to start/stop the ADSL function, so this adds a sysfs attribute to allow it to be started/stopped/restarted. It also stops polling the device for status when the ADSL function is disabled. There are no problems with sending multiple start or stop commands, even with a fast loop of them the device still works. There is no need to protect the restart process from further user actions while it's waiting for 1.5s. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Cc: Duncan Sands <duncan.sands@math.u-psud.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27usbatm: Detect usb device shutdown and ignore failed urbsSimon Arlott
Detect usb device shutdown and ignore failed urbs. This happens when the driver is unloaded or the device is unplugged. I'm not sure what other urb statuses should be ignored, and the warning message doesn't need to be shown when the module is unloaded or the device is removed. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Cc: Duncan Sands <duncan.sands@math.u-psud.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: Remove duplicate define of OHCI_QUIRK_ZFMICROS.Caglar Onur
Remove duplicate define of OHCI_QUIRK_ZFMICRO from ftdi-elan.c, its already defined in drivers/ush/host/ohci.c Signed-off-by: "S.Caglar Onur" <caglar@pardus.org.tr> Cc: <tony.olech@elandigitalsystems.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: BandRich BandLuxe HSDPA Data Card DriverLeon Leong
Add the detection for the BandRich BandLuxe C100/C100S/C120 HSDPA Data Card. With the vendor and product IDs are set properly, the data card can be detected and works fine. Signed-off-by: Leon Leong <upleong@bandrich.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB gadget rndis: fix struct rndis_packet_msg_type unaligned bugWu, Bryan
skb_push function may return a pointer which is not aligned as required by struct rndis_packet_msg_type. Using attribute trick to fix this bug. Signed-off-by: Roy Huang <roy.huang@analog.com> Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB Elan FTDI: check for driver registration statusCyrill Gorcunov
Add checking of driver registration status and release allocated resources if it failed. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Pete Zaitcev <zaitcev@redhat.com> Cc: "Luiz Fernando N. Capitulino" <lcapitulino@mandriva.com.br> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: sierra: add more checks on shutdownGreg Kroah-Hartman
This should help with any potential NULL pointer usages as reported by a few users. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: add an ohci board-specific quirkDavid Brownell
Use the new ohci-pci quirk infrastructure to address the problem it was created to address: a quirk specific to the Portege 4000, in buzilla as http://bugzilla.kernel.org/show_bug.cgi?id=6723 Also fix a misuse of "__devinit" for the quirk functions. It must not be used without first ensuring that the references from the quirk tables are gone, and that the function using those quirk tables is also gone. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: usbnet reports minidriver name through ethtoolDavid Brownell
Update "usbnet" so that ethtool reports the name of the minidriver in use (e.g. asix, cdc_ether, dm9601, rndis_host) instead of "usbnet". This is a better match to how other network drivers work, resolving a minor open issue. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: rndis_host, various cleanupsDavid Brownell
Cleanups to the rndis_host code, and a tweak that helps talking to PXA hardware. Mostly from Ole André Vadla Ravnås <oleavr@gmail.com> - Prevent SET_INTERFACE requests, they give PXA hardware bad indigestion - For paranoia, null a pointer after freeing its data - Wrap up ActiveSync oddities for RNDIS_QUERY in one routine - Use that wrapper when getting the Ethernet address - Whitespace fixes Plus add a comment noting the open issues about some RNDIS clients still needing TBD kinds of browbeating to accept non-jumbogram packets. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: <linux/usb/ch9.h> minor doc updateDavid Brownell
Minor doc update to <linux/usb/ch9.h> ... say where USB_DT_CS_* came from and update the definitions to match how they're derived there. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: fix signed jiffies issue in autosuspend logicAlan Stern
This patch (as897) changes the autosuspend timer code to use the standard types and macros in dealing with jiffies values. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27usbmon: bus zeroPete Zaitcev
Add the "bus zero" feature to the usbmon. If a user process specifies bus with number zero, it receives events from all buses. This is useful when we wish to see initial enumeration when a bus is created, typically after a modprobe. Until now, an application had to loop until a new bus could be open, then start capturing on it. This procedure was cumbersome and could lose initial events. Also, often it's too bothersome to find exactly to which bus a specific device is attached. Paolo Albeni provided the original concept implementation. I added the handling of "bus->monitored" flag and generally fixed it up. Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: Allow transfer_buffer with transfer_dmaTony Lindgren
Some host controller drivers may need a PIO fallback when a DMA channel is temporarily unavailable. This patch provides an address that such drivers can use for PIO in those cases, and nulls that field out when no such address is available (highmem) which should help usbmon. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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