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2007-06-08OHCI: Fix machine check in ohci_hub_status_dataAlan Stern
This patch (as901) fixes an oversight in ohci-hcd. The hub_status_data routine must not try to access the controller's memory-mapped registers if the controller is in a low-power state; such attempts will cause a crash on some architectures (such as PPC). Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-23ehci-fsl: fix cache coherency problem on system with large memoryLi Yang
The patch fixes bug http://bugzilla.kernel.org/show_bug.cgi?id=7482. It sets USB snooping on 4G space for PowerPC platforms without CONFIG_NOT_COHERENT_CACHE defined. Reported-by: Stefan Meyer <reyems@telkomsa.net> Signed-off-by: Li Yang <leoli@freescale.com> Cc: Greg KH <greg@kroah.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-22USB: Fix USB OHCI Subvendor for Toshiba Portege 4000Andrey Borzenkov
This fixes a bug in an OHCI quirk handler for Portege 4000; the Subvendor is 0x1179 (PCI_VENDOR_ID_TOSHIBA) not 0x102f (PCI_VENDOR_ID_TOSHIBA_2) bugid 8510 00:02.0 USB Controller [0c03]: ALi Corporation USB 1.1 Controller [10b9:5237] (rev 03) (prog-if 10 [OHCI]) Subsystem: Toshiba America Info Systems Unknown device [1179:0004] Flags: bus master, medium devsel, latency 64, IRQ 11 Memory at f7eff000 (32-bit, non-prefetchable) [size=4K] Capabilities: <access denied> Signed-off-by: Andrey Borzenkov <arvidjaar@mail.ru> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-22EHCI: fix problem with BIOS handoffAlan Stern
This patch (as882) fixes a problem with the EHCI BIOS handoff. On my machine, the BIOS configures the controller and the handoff fails, leaving the controller configured. During resume-from-disk, this confuses ehci-hcd into thinking that the controller has not been tampered with. The problem is fixed by turning off the Configured Flag whenever a BIOS handoff is attempted, whether it succeeds or not. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-22USB: fix more ftdi-elan/u132-hcd #include lossageDavid Brownell
Partial fix for bogosity in the ftdi-elan and u132-hcd drivers ... these have no business including with the internals of other drivers, much less doing so in a broken way!! A previous patch resolved one build fix, this resolves another... Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-08Merge branch 'master' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (77 commits) [POWERPC] Abolish powerpc_flash_init() [POWERPC] Early serial debug support for PPC44x [POWERPC] Support for the Ebony 440GP reference board in arch/powerpc [POWERPC] Add device tree for Ebony [POWERPC] Add powerpc/platforms/44x, disable platforms/4xx for now [POWERPC] MPIC U3/U4 MSI backend [POWERPC] MPIC MSI allocator [POWERPC] Enable MSI mappings for MPIC [POWERPC] Tell Phyp we support MSI [POWERPC] RTAS MSI implementation [POWERPC] PowerPC MSI infrastructure [POWERPC] Rip out the existing powerpc msi stubs [POWERPC] Remove use of 4level-fixup.h for ppc32 [POWERPC] Add powerpc PCI-E reset API implementation [POWERPC] Holly bootwrapper [POWERPC] Holly DTS [POWERPC] Holly defconfig [POWERPC] Add support for 750CL Holly board [POWERPC] Generalize tsi108 PCI setup [POWERPC] Generalize tsi108 PHY types ... Fixed conflict in include/asm-powerpc/kdebug.h manually Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08header cleaning: don't include smp_lock.h when not usedRandy Dunlap
Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08Merge branch 'linux-2.6'Paul Mackerras
2007-05-07ehci-ps3, ohci-ps3: fix compilationGeoff Levand
As seen on powerpc-cell et al: CC [M] drivers/usb/host/ehci-hcd.o In file included from drivers/usb/host/ehci-hcd.c:941: drivers/usb/host/ehci-ps3.c:79: error: conflicting types for 'dev_dbg' include/linux/device.h:576: error: previous definition of 'dev_dbg' was here make[4]: *** [drivers/usb/host/ehci-hcd.o] Error 1 CC [M] drivers/usb/host/ohci-hcd.o In file included from drivers/usb/host/ohci-hcd.c:921: drivers/usb/host/ohci-ps3.c:83: error: conflicting types for 'dev_dbg' include/linux/device.h:576: error: previous definition of 'dev_dbg' was here dev_dbg() will check format string for you in dummy case also, so remove buggers. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greg KH <greg@kroah.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07[POWERPC] Rename device_is_compatible to of_device_is_compatibleStephen Rothwell
for consistency with other Open Firmware interfaces (and Sparc). This is just a straight replacement. This leaves the compatibility define in place. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-06Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (82 commits) [ARM] Add comments marking in-use ptrace numbers [ARM] Move syscall saving out of the way of utrace [ARM] 4360/1: S3C24XX: regs-udc.h remove unused macro [ARM] 4358/1: S3C24XX: mach-qt2410.c: remove linux/mmc/protocol.h header [ARM] mm 10: allow memory type to be specified with ioremap [ARM] mm 9: add additional device memory types [ARM] mm 8: define mem_types table L1 bit 4 to be for ARMv6 [ARM] iop: add missing parens in macro [ARM] mm 7: remove duplicated __ioremap() prototypes ARM: OMAP: fix OMAP1 mpuio suspend/resume oops ARM: OMAP: MPUIO wake updates ARM: OMAP: speed up gpio irq handling ARM: OMAP: plat-omap changes for 2430 SDP ARM: OMAP: gpio object shrinkage, cleanup ARM: OMAP: /sys/kernel/debug/omap_gpio ARM: OMAP: Implement workaround for GPIO wakeup bug in OMAP2420 silicon ARM: OMAP: Enable 24xx GPIO autoidling [ARM] 4318/2: DSM-G600 Board Support [ARM] 4227/1: minor head.S fixups [ARM] 4328/1: Move i.MX UART regs to driver ...
2007-05-02[POWERPC] PS3: Interrupt routine fixups.Geoff Levand
Fixups for the ps3 interrupt routines to support all HV device in a generic way. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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: 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: 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>
2007-04-27UHCI: Add some WARN_ON()sAlan Stern
This patch (as872) adds some WARN_ON()s to various error checks which are never supposed to fail. Unsettlingly, one of them has shown up in a user's log! Maybe making the warning more visible and having the call-stack information available will help pinpoint the source of the problem. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27EHCI: add delay to bus_resume before accessing portsAlan Stern
This patch (as870) adds a delay to ehci-hcd's bus_resume routine. Apparently there are controllers and/or BIOSes out there which need such a delay to get the ports back into their correct state. This fixes Bugzilla #8190. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27ehci-fsl: change SI_CTRL, PRI_CTRL register offsets according to errataChristian Engelmayer
Correct the offsets of the SI_CTRL, PRI_CTRL registers according to the Reference Manual errata sheet in order to prevent unwanted settings regarding burst transactions and priority states. Signed-off-by: Christian Engelmayer <Christian.Engelmayer@frequentis.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27dev_dbg: check dev_dbg() argumentsDan Williams
Duplicate what Zach Brown did for pr_debug in commit 8b2a1fd1b394c60eaa2587716102dd5e9b4e5990 [akpm@linux-foundation.org: fix a couple of things which broke] Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-21[ARM] 4304/1: removes the unnecessary bit number from CKENnn_XXXXEric Miao
This patch removes the unnecessary bit number from CKENnn_XXXX definitions for PXA, so that CKEN0_PWM0 --> CKEN_PWM0 CKEN1_PWM1 --> CKEN_PWM1 ... CKEN24_CAMERA --> CKEN_CAMERA The reasons for the change of these defitions are: 1. they do not scale - they are currently valid for pxa2xx, but definitely not valid for pxa3xx, e.g., pxa3xx has bit 3 for camera instead of bit 24 2. they are unnecessary - the peripheral name within the definition has already announced its usage, we don't need those bit numbers to know which peripheral we are going to enable/disable clock for 3. they are inconvenient - think about this: a driver programmer for pxa has to remember which bit in the CKEN register to turn on/off Another change in the patch is to make the definitions equal to its clock bit index, so that #define CKEN_CAMERA (24) instead of #define CKEN_CAMERA (1 << 24) this change, however, will add a run-time bit shift operation in pxa_set_cken(), but the benefit of this change is that it scales when bit index exceeds 32, e.g., pxa3xx has two registers CKENA and CKENB, totally 64 bit for this, suppose CAMERA clock enabling bit is CKENB:10, one can simply define CKEN_CAMERA to be (32 + 10) and so that pxa_set_cken() need minimum change to adapt to that. Signed-off-by: eric miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-04-11EHCI: fix remote wakeup regression in 2.6.21-rcAlan Stern
There is one significant difference between the behavior of root hubs (as embodied in host controller hardware) and external hubs: When a remote-wakeup signal is received, an external hub sends an interrupt message at the _end_ of the resume sequence but a root hub generates and interrupt at the _beginning_ of the resume sequence. The host system must poll for the end of the sequence. When ehci-hcd was converted to interrupt-driven operation instead of using polling, the remaining need for this particular poll was overlooked. This patch (as894) fixes the problem. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-03-26UHCI: Fix problem caused by lack of terminating QHAlan Stern
This patch (as871) fixes a problem introduced by an earlier change. It turns out that some systems really do need to have a terminating skeleton QH present whenever FSBR is on. I don't know any way to tell which systems do need it and which don't; the easiest answer is to have it there always. This fixes the NumLock-hang bug reported by Jiri Slaby. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-03-09USB: fix Unaligned access in EHCI driverMax Dmitrichenko
I get following warnings on spar64: Kernel unaligned access at TPC[1000c9e4] ehci_hub_control+0x54c/0x68c [ehci_hcd] Despite of the comment in the patched code, the type cast used there does make unaligned access. The fix was made as it's done in ohci-hub.c. Signed-off-by: Max Dmitrichenko <dmitrmax@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-03-09UHCI: fix port resume problemAlan Stern
This patch (as863) fixes a problem encountered sometimes when resuming a port on a UHCI controller. The hardware may turn off the Resume-Detect bit before turning off the Suspend bit, leading usbcore to think that the port is still suspended and the resume has failed. The patch makes uhci_finish_suspend() wait until both bits are safely off. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23UHCI: Eliminate asynchronous skeleton Queue HeadersAlan Stern
This patch (as856) attempts to improve the performance of uhci-hcd by removing the asynchronous skeleton Queue Headers. They don't contain any useful information but the controller has to read through them at least once every millisecond, incurring a non-zero DMA overhead. Now all the asynchronous queues are combined, along with the period-1 interrupt queue, into a single list with a single skeleton QH. The start of the low-speed control, full-speed control, and bulk sublists is determined by linear search. Since there should rarely be more than a couple of QHs in the list, the searches should incur a much smaller total load than keeping the skeleton QHs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23UHCI: Add macros for computing DMA valuesAlan Stern
This patch (as855) adds some convenience macros to uhci-hcd, to help simplify the code for computing hardware DMA pointers. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (25 commits) Documentation/kernel-docs.txt update. arch/cris: typo in KERN_INFO Storage class should be before const qualifier kernel/printk.c: comment fix update I/O sched Kconfig help texts - CFQ is now default, not AS. Remove duplicate listing of Cris arch from README kbuild: more doc. cleanups doc: make doc. for maxcpus= more visible drivers/net/eexpress.c: remove duplicate comment add a help text for BLK_DEV_GENERIC correct a dead URL in the IP_MULTICAST help text fix the BAYCOM_SER_HDX help text fix SCSI_SCAN_ASYNC help text trivial documentation patch for platform.txt Fix typos concerning hierarchy Fix comment typo "spin_lock_irqrestore". Fix misspellings of "agressive". drivers/scsi/a100u2w.c: trivial typo patch Correct trivial typo in log2.h. Remove useless FIND_FIRST_BIT() macro from cardbus.c. ...
2007-02-17Replace remaining references to "driverfs" with "sysfs".Robert P. J. Day
Globally, s/driverfs/sysfs/g. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-02-16USB: at91-ohci, handle extra at91sam9261 ahb clockAndrew Victor
The AT91SAM9261 needs to activate an AHB clock (HCK0) to use the USB Host controller. Previously clock.c would just enable it at startup, but now all the unused clocks are automatically disabled. Based on patch from Nicolas Ferre. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-16USB: change __init to __devinit for isp116x_probePrarit Bhargava
Change __init to __devinit for isp116x_probe. Resolves MODPOST warning: WARNING: drivers/usb/host/isp116x-hcd.o - Section mismatch: reference to .init.text:isp116x_probe from .data.rel.local between 'isp116x_driver' (at offset 0x0) and 'isp116x_hc_driver' Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-16USB: ps3: don't call ps3_system_bus_driver_register on other platformsIshizaki Kou
ps3_system_bus_driver_register is PS3 platform specific function. On other platforms, it triggers WARN_ON in kref_get. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-16EHCI: add debugging message to ehci_bus_suspendAlan Stern
This patch (as848) adds a useful little debugging message to let us know when ehci-hcd's bus_suspend method runs. The other HCDs have similar messages; now ehci-hcd doesn't need to feel left out. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-16EHCI: turn off remote wakeup during shutdownAlan Stern
This patch (as850b) disables remote wakeup (and everything else!) on all EHCI ports when the shutdown() method is called. If remote wakeup is left active then some systems will reboot instead of powering off. This fixes Bugzilla #7828. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-14[PATCH] Scheduled removal of SA_xxx interrupt flags fixupsThomas Gleixner
The obsolete SA_xxx interrupt flags have been used despite the scheduled removal. Fixup the remaining users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Roland Dreier <rolandd@cisco.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Greg KH <greg@kroah.com> Cc: Dave Airlie <airlied@linux.ie> Cc: James Simmons <jsimmons@infradead.org> 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>
2007-02-14[PATCH] remove many unneeded #includes of sched.hTim Schmielau
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] Transform kmem_cache_alloc()+memset(0) -> kmem_cache_zalloc().Robert P. J. Day
Replace appropriate pairs of "kmem_cache_alloc()" + "memset(0)" with the corresponding "kmem_cache_zalloc()" call. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Roland McGrath <roland@redhat.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Greg KH <greg@kroah.com> Acked-by: Joel Becker <Joel.Becker@oracle.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Jan Kara <jack@ucw.cz> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: James Morris <jmorris@namei.org> Cc: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-09[PATCH] hci_{read,write}l() does force casts to wrong type for no reasonAl Viro
readl() et.al. expect iomem pointer, so WTF force-cast it to normal one??? Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-09[PATCH] ps3 usb missed the addition of new argument to ps3_alloc_io_irq()Al Viro
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-07EHCI: fix interrupt-driven remote wakeupAlan Stern
Now that port status change notifications are interrupt-driven, ehci-hcd needs to tell usbcore when a remote-wakeup resume operation is finished -- we can no longer rely on the core to poll and find out. This patch (as843) uses the root-hub status timer to force a poll after the resume is complete. The patch also changes the test for detecting when the TDRSMDN resume period has expired. It's necessary to use time_after_eq() instead of time_after(), since the polling is triggered precisely by a timer. The same change is made for TDRSTR reset expiration, for consistency. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07USB: switch ehci-hcd to new polling schemeMarcelo Tosatti
Switch ehci-hcd to use the new polling scheme, which reports root hub status changes via the interrupt handler, in an asynchronous fashion. Doing so disables polling for status changes (whose handler is rh_timer_func). Tested on a Geode GX machine, which is now capable of running at =~ 5 timer interrupts per second (in the -rt tree), resulting in significant power savings. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07EHCI: force high-speed devices to run at full speedAlan Stern
This patch (as710) adds a sysfs class-device attribute file named "companion" for EHCI controllers. The file contains a list of port numbers that are dedicated to the companion controller; by writing a port number to the file the user can force a high-speed device attached directly to the computer to run at full speed. (As far as I know it is not possible to do this for a device attached to an external hub.) A port is removed from the file by writing the negative of its port number. Several users have asked for this facility and it seems like a useful thing to have. Every now and then one runs across a device which behaves much better at full speed than at high speed. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07EHCI: don't hide ports owned by the companionAlan Stern
This patch (as709) changes the way ehci-hcd presents port status values for ports owned by the companion controller. It no longer hides the information; in particular, it allows the core to see the disconnect event that occurs when a full- or low-speed device is switched over to the companion. This is required for the next patch in this series. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07EHCI: local variable for port status registerAlan Stern
This patch (as708) introduces a local variable to hold the port status-register address in ehci-hub.c. There's not much improvement in the object code, but it sure is a lot easier to read. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07UHCI: fix bandwidth allocationAlan Stern
This patch (as840) fixes the bandwidth allocation mechanism in uhci-hcd. It has never worked correctly. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07USB: ps3 ohci bus glueGeoff Levand
USB OHCI driver bus glue for the PS3 game console. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07USB: ohci error handling cleanupBenjamin Herrenschmidt
Restructure the ohci_hcd_mod_init error handling code in to better support the multiple platform drivers. This does not change the functionality. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07USB: ps3 ehci bus glueGeoff Levand
USB EHCI driver bus glue for the PS3 game console. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07USB: ohci-at91 refcount fix for irq wake enablesMarc Pignat
The attached patch fixes the unbalanced calls to enable_irq_wake() and disable_irq_wake() in the AT91 USB Host driver. It should resolve these kernel messages: Unbalanced IRQ x wake disable BUG: warning at kernel/irq/manage.c:167/set_irq_wake() (The original code was debugged before a bug in the genirq wakeup irq logic was fixed by adding the IRQ wake enable/disable refcounting. Not all code yet uses the bugfixed model.) Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07UHCI: no dummy TDs for Iso QHsAlan Stern
Isochronous queues don't need a dummy TD because the Queue Header isn't managed by the hardware. This patch (as836) removes the unnecessary dummy TDs. The patch also fixes a long-standing typo in a comment (a "don't" was missing -- potentially very confusing!). Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07UHCI: improved debugging checks for the frame listAlan Stern
This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>