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* Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2007-10-15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (95 commits) [ARM] 4578/1: CM-x270: PCMCIA support [ARM] 4577/1: ITE 8152 PCI bridge support [ARM] 4576/1: CM-X270 machine support [ARM] pxa: Avoid pxa_gpio_mode() in gpio_direction_{in,out}put() [ARM] pxa: move pxa_set_mode() from pxa2xx_mainstone.c to mainstone.c [ARM] pxa: move pxa_set_mode() from pxa2xx_lubbock.c to lubbock.c [ARM] pxa: Make cpu_is_pxaXXX dependent on configuration symbols [ARM] pxa: PXA3xx base support [NET] smc91x: fix PXA DMA support code [SERIAL] Fix console initialisation ordering [ARM] pxa: tidy up arch/arm/mach-pxa/Makefile [ARM] Update arch/arm/Kconfig for drivers/Kconfig changes [ARM] 4600/1: fix kernel build failure with build-id-supporting binutils [ARM] 4599/1: Preserve ATAG list for use with kexec (2.6.23) [ARM] Rename consistent_sync() as dma_cache_maint() [ARM] 4572/1: ep93xx: add cirrus logic edb9307 support [ARM] 4596/1: S3C2412: Correct IRQs for SDI+CF and add decoding support [ARM] 4595/1: ns9xxx: define registers as void __iomem * instead of volatile u32 [ARM] 4594/1: ns9xxx: use the new gpio functions [ARM] 4593/1: ns9xxx: implement generic clockevents ...
| * [ARM] pxa: update PXA UDC driver to use clk supportRussell King2007-10-12
| | | | | | | | | | | | Note: this produces a WARN() dump. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | atmel_usba_udc: Keep track of the device statusHaavard Skinnemoen2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Keep track of the device status (as returned by the GET_STATUS request) and allow it to be manipulated by set_selfpowered() as well as SET_FEATURE/CLEAR_FEATURE (for remote wakeup) Implement the wakeup() op, which refuses to do anything if the DEVICE_REMOTE_WAKEUP feature wasn't set by the host. Now this driver passes USBCV (at least, with gadget zero). Fix one more locking bug; lockdep is every developer's friend. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: add atmel_usba_udc driverHaavard Skinnemoen2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a driver for the Atmel USBA UDC which can be found integrated on AT32AP700x AVR32 processors. For hardware documentation, please see the AT32AP7000 data sheet: http://www.atmel.com/dyn/resources/prod_documents/doc32003.pdf This is a dual speed controller (connects at high or full speed). The driver supports up to 7 control, bulk, interrupt and isochronous endpoints with some constraints. Bulk, interrupt and isochronous transfers are driven by DMA. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: move <linux/usb_gadget.h> to <linux/usb/gadget.h>David Brownell2007-10-12
| | | | | | | | | | | | | | | | | | Move <linux/usb_gadget.h> to <linux/usb/gadget.h>, reducing some of the clutter in the main include directory. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: serial gadget: Disable endpoints on unloadVitaly Bordug2007-10-12
| | | | | | | | | | | | | | | | | | After Serial gadget is being unloaded, neither serial itself, nor other gadget stuff can be loaded subsequently. Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | usb-gadget-ether: prevent oops caused by error interrupt raceBenedikt Spranger2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a longstanding race in the Ethernet gadget driver, which can cause an oops on device disconnect. The fix is just to make the TX path check whether its freelist is empty. That check is otherwise not necessary, since the queue is always stopped when that list empties (and restarted when request completion puts an entry back on that freelist). The race window starts when the network code decides to transmit a packet, and ends when hard_start_xmit() grabs the freelist lock. When disconnect() is called inside that window, it shuts down the TX queue and breaks the otherwise-solid assumption that packets are never sent through a TX queue that's stopped. Signed-off-by: Benedikt Spranger <bene@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: AMD5536: use pdev->revisionAuke Kok2007-10-12
| | | | | | | | | | | | | | Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Cc: Thomas Dahlmann <thomas.dahlmann@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: fix location of statement label in dummy-hcdAlan Stern2007-10-12
| | | | | | | | | | | | | | | | | | | | This patch (as984) fixes a rather elementary mistake in dummy_hcd. The new statement label should come before the spin_unlock_irqrestore, not after it. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: Eliminate urb->status usage!Alan Stern2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: reorganize urb->status use in dummy-hcdAlan Stern2007-10-12
| | | | | | | | | | | | | | | | | | This patch (as973) reorganizes the way dummy-hcd sets urb->status. It now keeps the information in a local variable until the last moment. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: less-restrictive command checking in g-file-storageAlan Stern2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | This patch (as983) makes a test for minimum-length command sizes in g_file_storage less restrictive. It doesn't matter because commands with bad lengths will be detected later on anyway, and doing it like this makes the driver interoperable with certain buggy hosts such as the JVC HiFi (reported by Samuel Hangouet). Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: add urb->unlinked fieldAlan Stern2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: centralize -EREMOTEIO handlingAlan Stern2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as969) continues the ongoing changes to the way HCDs report URB statuses. The programming interface has been simplified by making usbcore responsible for clearing urb->hcpriv and for setting -EREMOTEIO status when an URB with the URB_SHORT_NOT_OK flag ends up as a short transfer. By moving the work out of the HCDs, this removes a fair amount of repeated code. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | usb: remove redundant memset from amd5536udcMariusz Kozlowski2007-10-12
| | | | | | | | | | | | | | | | | | Remove redundant memset() call from udc_pci_probe(). No functional change. Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: cleanups for g_file_storageAlan Stern2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as957) makes some minor cleanups to the g_file_storage driver: Update the copyright date and version string; Uniformize the logging macros for the gadget and the LUNs; Remove "inline" markers -- nowadays we rely on the compiler to decide which routines are best inlined; Use the print_hex_dump() library routines; Remove some unnecessary assignments within conditionals and fix some close-brace indenting levels; Fix some column-80 violations. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: make HCDs responsible for managing endpoint queuesAlan Stern2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: gadget: gadget zero cleanupsDavid Brownell2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up gadget zero, using newer APIs and conventions: - gadget_is_dualspeed() and gadget_is_otg() ... #ifdef removal - Remove many now-needless #includes - Use the VERBOSE_DEBUG convention - Some whitespace fixes. - A few comment updates - Plus a few other small cleanups: don't pass gfp_t around when it's always going to be GFP_ATOMIC, and do static init of serial number. Also go to straight GPL; there's no real point in dual licensing this stuff any more. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: gadget: file storage gadget cleanupsDavid Brownell2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up the file storage gadget, using newer APIs and conventions: - gadget_is_dualspeed() and gadget_is_otg() ... #ifdef removal - Remove many now-needless #includes - Use the DEBUG (from Kconfig+Makefile) and VERBOSE_DEBUG conventions. - Remove some "sparse" warnings (it still dislikes the __user annotations) This gave only a minor object code shrinkage. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: gadget: serial gadget cleanupsDavid Brownell2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up the serial gadget, using newer APIs and conventions: - gadget_is_dualspeed() and gadget_is_otg() ... #ifdef removal - Remove many now-needless #includes - Use the DEBUG and VERBOSE_DEBUG conventions; turned up a bug in the original debug messaging - Various whitespace fixes. This gave only a minor object code shrinkage, but the source looks much cleaner in various places. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Al Borchers <alborchers@steinerpoint.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: gadget: gmidi cleanupsDavid Brownell2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up the midi gadget, using newer APIs and conventions: - Remove many now-needless #includes - Use the DEBUG (from Kconfig+Makefile) and VERBOSE_DEBUG conventions. - Whitespace fixes There should be no effect on object code size. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Ben Williamson <ben.williamson@greyinnovation.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: gadget: ethernet gadget cleanups, shrinkageDavid Brownell2007-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up the ethernet gadget, using newer APIs and conventions: - gadget_is_dualspeed() and gadget_is_otg() ... #ifdef removal - Remove many now-needless #includes - Use the VERBOSE_DEBUG convention - Minor whitespace fixes. - Fix a warning from "sparse". Surprisingly, this saved about 2K of code (16%) on a fullspeed-only ARMv4 platform. I'm bit puzzled by that (it's so much!), but approve of the result. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | USB: gadget: gadget_is_{dualspeed,otg} predicates and cleanupDavid Brownell2007-10-12
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds two small inlines to the gadget stack, which will often evaluate to compile-time constants. That can help shrink object code and remove #ifdeffery. - gadget_is_dualspeed(), currently always a compile-time constant (depending on which controller is selected). - gadget_is_otg(), usually a compile time "false", but this is a runtime test if the platform enables OTG (since it's reasonable to populate boards with different USB sockets). It also updates two peripheral controller drivers to use these: - fsl_usb2_udc, mostly OTG-related bugfixes: non-OTG devices must follow the rules about drawing VBUS power, and OTG ones need to reject invalid SET_FEATURE requests. - omap_udc, just scrubbing a bit of #ifdeffery. And also gadgetfs, which lost some #ifdefs and moved to a more standard handling of DEBUG and VERBOSE_DEBUG. The main benefits come from patches which will follow. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [NET]: Nuke SET_MODULE_OWNER macro.Ralf Baechle2007-10-10
| | | | | | | | | | | | It's been a useless no-op for long enough in 2.6 so I figured it's time to remove it. The number of people that could object because they're maintaining unified 2.4 and 2.6 drivers is probably rather small. [ Handled drivers added by netdev tree and some missed IRDA cases... -DaveM ] Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* USB: fix serial gadget ACM breakageDavid Brownell2007-09-11
| | | | | | | | | | | | | | Two of the CDC ACM control requests in the serial gadget have never been correct, and have been reported to cause serious troubles ... as in, soft lockup and maybe watchdog reset (depending on hardware). This patch makes those request fail cleanly, rather than misbehaving. Someone using CDC ACM should fix them according to the FIXME comments which now replace the previous bugs. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fsl_usb2_udc: fix bug in processing setup requestsLi Yang2007-08-22
| | | | | | | | | | | | | | | Kim Liu found that in the original code certain class setup requests are wrongly recognized and processed as standard setup requests. For that reason gadget ether can't work in RNDIS mode with Windows host. The patch fixes the setup request processing code, and makes class requests correctly passed to gadget layer. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kim Liu <KLiu@vixs.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: g_file_storage: fix bug in DMA buffer handlingAlan Stern2007-08-22
| | | | | | | | | | | This patch (as963) fixes a recently-introduced bug. The gadget conversion removing DMA-mapped buffer allocation did not remove quite enough code from the g_file_storage driver; DMA pointers were being set to 0. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: remove DEBUG definition from dummy_hcdAlan Stern2007-08-22
| | | | | | | | | This patch (as958) removes an unneeded and unwanted #define line from dummy_hcd. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Stall control endpoint when file storage class request wValue != 0Luis Lloret2007-08-22
| | | | | | | | | | | | This patch makes the File Storage Gadget stall the control endpoint when a MSC class request is made with wValue != 0. This change makes some MSC compliance test warnings disappear. Signed-off-by: Luis Lloret <luislloret@gmail.com> Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: px2xx_udc bugfix, missing check for gpio_pullupDavid Brownell2007-08-22
| | | | | | | | | | | | | | | | git commit b2bbb20b37d734443d1c279d0033a64f6095db54 added direct support for PXA GPIO D+ pullup as alternative to the older udc_command ops method. This was done by introduction of the pxa2xx_udc_mach_info member "gpio_pullup" which, if initialized, is now used in (almost) all places where udc_command used to be called. This patch fixes two places where checks for availability of D+ pullup control still only honor udc_command. Signed-off-by: Uli Luckas <u.luckas@road.de> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: "sparse" cleanups for usb gadgetsDavid Brownell2007-07-30
| | | | | | | | | | This removes complaints about the gadget stack which are generated by the currrent "sparse": it doesn't like the fact that zero is the null pointer. (Last I checked, C guarantees that's correct ...) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: more pxa2xx_udc dead code removalDavid Brownell2007-07-30
| | | | | | | | | | | | Remove some more dead code from the pxa2xx_udc driver: support for a no-longer-undocumented hardware "test mode". Newer chips made this the default, evidently as the best workaround for deep silicon bugs. The interest was that this seemed to be the only way to kick in the (documented!) double buffering capability. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: m66592-udc: fixes some problemsYoshihiro Shimoda2007-07-19
| | | | | | | | | | | | | | | | | | | | | | This patch incorporates some updates from the review of the Renesas m66592-udc driver. Updates include: - Fix some locking bugs; and add a few sparse annotations - Don't #define __iomem ! - Lots of whitespace fixes (most of the patch by volume) - Some #include file trimmage - Other checkpatch.pl and sparse updates - Alphabetized and slightly-more-informative Kconfig - Don't use the ID which was assigned to the amd5536udc driver. - Remove pointless suspend/resume methods updating obsolete field. - Some section fixups - Fix some leak bugs - Fix byteswapping Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: amd5536 UDC driver (in GEODE southbridge)Thomas Dahlmann2007-07-19
| | | | | | | | | | | | Driver for the AMD5536 UDC, as found in the AMD Geode CS5536 (southbridge). This is a high speed DMA-capable controller, which can also be used in OTG configurations (which are not supported by this patch). Acked-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: use mutex instead of semaphore in the USB gadget serial driverMatthias Kaehlcke2007-07-19
| | | | | | | | | | The USB gadget serial driver uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Acked-by: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* some kmalloc/memset ->kzalloc (tree wide)Yoann Padioleau2007-07-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc). Here is a short excerpt of the semantic patch performing this transformation: @@ type T2; expression x; identifier f,fld; expression E; expression E1,E2; expression e1,e2,e3,y; statement S; @@ x = - kmalloc + kzalloc (E1,E2) ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\) - memset((T2)x,0,E1); @@ expression E1,E2,E3; @@ - kzalloc(E1 * E2,E3) + kcalloc(E1,E2,E3) [akpm@linux-foundation.org: get kcalloc args the right way around] Signed-off-by: Yoann Padioleau <padator@wanadoo.fr> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Bryan Wu <bryan.wu@analog.com> Acked-by: Jiri Slaby <jirislaby@gmail.com> Cc: Dave Airlie <airlied@linux.ie> Acked-by: Roland Dreier <rolandd@cisco.com> Cc: Jiri Kosina <jkosina@suse.cz> Acked-by: Dmitry Torokhov <dtor@mail.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Acked-by: Pierre Ossman <drzeus-list@drzeus.cx> Cc: Jeff Garzik <jeff@garzik.org> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Greg KH <greg@kroah.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Freezer: make kernel threads nonfreezable by defaultRafael J. Wysocki2007-07-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the freezer treats all tasks as freezable, except for the kernel threads that explicitly set the PF_NOFREEZE flag for themselves. This approach is problematic, since it requires every kernel thread to either set PF_NOFREEZE explicitly, or call try_to_freeze(), even if it doesn't care for the freezing of tasks at all. It seems better to only require the kernel threads that want to or need to be frozen to use some freezer-related code and to remove any freezer-related code from the other (nonfreezable) kernel threads, which is done in this patch. The patch causes all kernel threads to be nonfreezable by default (ie. to have PF_NOFREEZE set by default) and introduces the set_freezable() function that should be called by the freezable kernel threads in order to unset PF_NOFREEZE. It also makes all of the currently freezable kernel threads call set_freezable(), so it shouldn't cause any (intentional) change of behaviour to appear. Additionally, it updates documentation to describe the freezing of tasks more accurately. [akpm@linux-foundation.org: build fixes] Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Nigel Cunningham <nigel@nigel.suspend2.net> Cc: Pavel Machek <pavel@ucw.cz> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* minimal fixes for drivers/usb/gadget/m66592-udc.cAl Viro2007-07-15
| | | | | | | still looks racy (and definitely leaks) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* USB: goku_udc trivial cleanupsDavid Brownell2007-07-12
| | | | | | | | | Minor fixes to goku_udc ... whitespace, let -DDEBUG do its thing, check the return value of device_register(), sparse tweaks. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usb gadget stack can now -DDEBUG with KconfigDavid Brownell2007-07-12
| | | | | | | | | | | | | | Although the other USB driver directories got taught how use Kconfig and the Makefile to enable the debugging messages enabled by -DDEBUG, the gadget stack was overlooked. This patch remedies that omission, but doesn't update any drivers to remove previous idiosyncracies in this area ... other than the RNDIS code, which defined its own DEBUG() macro in a broken way. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb gadget stack: remove usb_ep_*_buffer(), part 2David Brownell2007-07-12
| | | | | | | | | | | | | | | | | | | | This patch removes controller driver infrastructure which supported the now-removed usb_ep_{alloc,free}_buffer() calls. As can be seen, many of the implementations of this were broken to various degrees. Many didn't properly return dma-coherent mappings; those which did so were necessarily ugly because of bogosity in the underlying dma_free_coherent() calls ... which on many platforms can't be called from the same contexts (notably in_irq) from which their dma_alloc_coherent() sibling can be called. The main potential downside of removing this is that gadget drivers wouldn't have specific knowledge that the controller drivers have: endpoints that aren't dma-capable don't need any dma mappings at all. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb gadget stack: remove usb_ep_*_buffer(), part 1David Brownell2007-07-12
| | | | | | | | | | | | | | | | | | | | | | Remove usb_ep_{alloc,free}_buffer() calls, for small dma-coherent buffers. This patch just removes the interface and its users; later patches will remove controller driver support. - This interface is invariably not implemented correctly in the controller drivers (e.g. using dma pools, a mechanism which post-dates the interface by several years). - At this point no gadget driver really *needs* to use it. In current kernels, any driver that needs such a mechanism could allocate a dma pool themselves. Removing this interface is thus a simplification and improvement. Note that the gmidi.c driver had a bug in this area; fixed. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: pxa2xx_udc -- cleanups, mostly removing dma hooksDavid Brownell2007-07-12
| | | | | | | | | | | | | | | | | | | | Cleanups to the pxa2xx_udc code: - Primarily removing unused DMA hooks. - One "sparse" warning removed - Remove some Lubbock-only LED hooks (for debugging) That DMA code was never really completed. It worked, mostly, for IN transfers (to the host) if they were fortuitously aligned, but that code was never fully tested. And it was never coded for OUT transfers (which is where DMA would really help) ... because of chip errata on essentially every chip other than the pxa255, and because of design botches (nothing automated data toggle). So it's effectively been dead code for several years now ... no point in keeping it around. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: pxa2xx_udc: use generic gpio layerMilan Svoboda2007-07-12
| | | | | | | | | | This patch lets the pxa2xx_udc use the generic gpio layer, on the relevant PXA and IXP systems. Signed-off-by: Milan Svoboda <msvoboda@ra.rockwell.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Don't resume root hub if the controller is suspendedAlan Stern2007-07-12
| | | | | | | | | | | | | | | | | | | Root hubs can't be resumed if their parent controller device is still suspended. This patch (as925) adds a check for that condition in hcd_bus_resume() and prevents it from being treated as a fatal controller failure. ehci-hcd is updated to add the corresponding test. Unnecessary debugging messages are removed from uhci-hcd and dummy-hcd. The error return code from dummy-hcd is changed to -ESHUTDOWN, the same as the others. ohci-hcd doesn't need any changes. Suspend handling in the non-PCI host drivers is somewhat hit-and-miss. This patch shouldn't have any effect on them. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fsl_usb2_udc: fix bug for portsc bit maskingLi Yang2007-07-12
| | | | | | | | | Fix a bug that PORT_TYPE and PORT_WIDTH aren't masked correctly in portsc. Signed-off-by: Christopher Cason <chris.cason@nec.com.au> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb gadget: Rename husb2dev -> usbaHaavard Skinnemoen2007-07-12
| | | | | | | | | | husb2dev was the internal name of the USB Device Controller on AT32AP7000. Rename it to "atmel_usba", which is closer to the official name used in documentation and marketing material. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB Gadget driver for Samsung s3c2410 ARM SoCArnaud Patard2007-07-12
| | | | | | | | | | | | | | | This patch adds the support for the Usb Device Controller on Samsung S3C24xx SoCs. This driver passes all tests from testusb (including #13) and has been tested on S3C2410, S3C24212, and S3C2440 SoCs. Whitespace updates, minor cleanups by David Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org> Cc: Herbert Pötzl <herbert@13thfloor.at> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fsl_usb2_udc: Get max ep number from DCCPARAMS registerLi Yang2007-07-12
| | | | | | | | | | | | | Currently the driver is expecting max ep number in platform data which isn't passing this information. This patch fix the problem by reading it from DCCPARAMS(Device Controller Capability Parameters) register. The change also need some reordering of the probe code. 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>
* USB: fsl_usb2_udc: replace deprecated irq flagLi Yang2007-07-12
| | | | | | Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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