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path: root/drivers/usb/host
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2008-10-17USB: remove err() macro from more usb driversGreg Kroah-Hartman
USB should not be having it's own printk macros, so remove err() and use the system-wide standard of dev_err() wherever possible. In the few places that will not work out, use a basic printk(). Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17USB: remove info() macro from remaining usb driversGreg Kroah-Hartman
USB should not be having it's own printk macros, so remove info() and use the system-wide standard of dev_info() wherever possible. In the few places that will not work out, use a basic printk(). Clean up the remaining usages of this in the drivers/usb/ directory. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17USB: OHCI: fix endless polling behaviorAlan Stern
This patch (as1149) fixes an obscure problem in OHCI polling. In the current code, if the RHSC interrupt status flag turns on at a time when RHSC interrupts are disabled, it will remain on forever: The interrupt handler is the only place where RHSC status gets turned back off; The interrupt handler won't turn RHSC status off because it doesn't turn off status flags if the corresponding interrupt isn't enabled; RHSC interrupts will never get enabled because ohci_root_hub_state_changes() doesn't reenable RHSC if RHSC status is on! As a result we will continue polling indefinitely instead of reverting to interrupt-driven operation, and the root hub will not autosuspend. This particular sequence of events is not at all unusual; in fact plugging a USB device into an OHCI controller will usually cause it to occur. Of course, this is a bug. The proper thing to do is to turn off RHSC status just before reading the actual port status values. That way either a port status change will be detected (if it occurs before the status read) or it will turn RHSC back on. Possibly both, but that won't hurt anything. We can still check for systems in which RHSC is totally broken, by re-reading RHSC after clearing it and before reading the port statuses. (This re-read has to be done anyway, to post the earlier write.) If RHSC is on but no port-change statuses are set, then we know that RHSC is broken and we can avoid re-enabling it. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17USB: EHCI: fix remote-wakeup support for ARC/TDI coreAlan Stern
This patch (as1147) fixes the remote-wakeup support for EHCI controllers using the ARC/TDI "embedded-TT" core. These controllers turn off the RESUME bit by themselves when a port resume is complete; hence we need to keep separate track of which ports are suspended or in the process of resuming. The patch also makes a couple of small improvements in ehci_irq(), replacing reads of the command register with the value already stored in a local variable. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Tested-by: Thomas Reitmayr <treitmayr@devbase.at> CC: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17USB: EHCI: log a warning if ehci-hcd is not loaded firstAlan Stern
This patch (as1139) adds a warning to the system log whenever ehci-hcd is loaded after ohci-hcd or uhci-hcd. Nowadays most distributions are pretty good about not doing this; maybe the warning will help convince anyone still doing it wrong. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> [2.6.27] Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17USB: EHCI, OHCI, UHCI: remove version numbersAlan Stern
This patch (as1145) removes the essentially useless driver-version strings from ehci-hcd, ohci-hcd, and uhci-hcd. It also unifies the form of the banner lines they display upon loading and adds a missing test for usb_disabled() to ehci-hcd. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17USB: isp1760: Use an IS_ERR test rather than a NULL testJulien Brunel
In case of error, the function isp1760_register returns an ERR pointer, but never returns a NULL pointer. So after a call to this function, a NULL test should be replaced by an IS_ERR test. Moreover, we have noticed that: (1) the result of isp1760_register is assigned through the function pci_set_drvdata without an error test, (2) if the call to isp1760_register fails, the current function (isp1761_pci_probe) returns 0, and if it succeeds, it returns -ENOMEM, which seems odd. Thus, we suggest to move the test before the call to pci_set_drvdata to correct (1), and to turn it into a non IS_ERR test to correct (2). The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @bad_null_test@ expression x,E; statement S1, S2; @@ x = isp1760_register(...) ... when != x = E * if (x == NULL) S1 else S2 // </smpl> Signed-off-by: Julien Brunel <brunel@diku.dk> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17USB: improve ehci_watchdog's side effect in CPU power managementYi Yang
ehci_watchdog will wake up CPU very frequently so that CPU stays at C3 very short, average residence time is about 50 ms on Aspire One, but we expect it should be about 1 second or more, so this kind of periodic timer is very bad for power saving. We can't remove this timer because of some bad USB controller chipset, but at least we should reduce its side effect to as possible as low. This patch can make CPU stay at C3 longer, average residence time is about twice as long as original. Please consider to apply it, thanks Signed-off-by: Yi Yang <yi.y.yang@intel.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17USB: UHCI: improve scheduling of interrupt URBsAlan Stern
This patch (as1140) adds a little intelligence to the interrupt-URB scheduler in uhci-hcd. Right now the scheduler is stupid; every URB having the same period is assigned to the same slot. Thus a large group of period-N URBs can fill their slot and cause -ENOSPC errors even when all the lower-period slots are empty. With the patch, if an URB doesn't fit in its assigned slot then the scheduler will try using lower-period slots. This will provide greater flexibility. As an example, the driver will be able to handle more than just three or four mice, which the current driver cannot. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17USB: ohci-omap: handle other omap15xx chipsTony Lindgren
Sync up USB parts of the ohci-omap support in mainline with the OMAP tree. This patch supports another first generation OMAP1 part: not just the OMAP 1510 (and its catalog version, the OMAP 5910), but also OMAP 310. From: Tony Lindgren <tony@atomide.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17usb: remove code associated with !CONFIG_PPC_MERGEKumar Gala
Now that arch/ppc is gone we don't need CONFIG_PPC_MERGE anymore remove the dead code associated with !CONFIG_PPC_MERGE. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17USB: ehci-dbg: fix reading less content of periodic fileMing Lei
This patch fix 2 problems about reading periodic file: 1. The "..." after a interrupt qh is missed because buffer pointer is not moved. 2. After setting p.ptr as NULL, its next qh or itd will be omited and can't be stored in debug buffer. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17USB: ehci-dbg: increase debug buffer size for periodic fileMing Lei
This patch is based on the following ideas: 1. Some usb devices (such as usb video class) have endpoints of high interval attribute, so reading "periodic" file need more debug buffer to accommodate the qh or itd schedule information. For example, 4KB buffer is not enough for a single interrupt qh of 2ms period. 2. print a %p need 16 byte buffer on 64-bits arch, but 8 byte on 32-bits arch. Add a extra bonus for 64-bits arch. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17OHCI: Allow broken controllers to auto-stopAlan Stern
This patch (as1134) attempts to improve the way we handle OHCI controllers with broken Root Hub Status Change interrupt support. In these controllers the RHSC interrupt bit essentially never turns off, making RHSC interrupts useless -- they have to remain permanently disabled. Such controllers should still be allowed to turn off their root hubs when no devices are attached. Polling for new connections can continue while the root hub is suspended. The patch implements this feature. (It won't have much effect unless CONFIG_PM is enabled and CONFIG_USB_SUSPEND is disabled, but since the overhead is very small we may as well do it.) Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17USB: Let some USB host controllers get IRQ flags from resourceMarc Zyngier
[This version fixes a thinko in the r8a66597 driver] This patch let a few discrete USB host controllers drivers (isp116x-hcd, r8a66597-hcd and sl811-hcd) obtain IRQ flags from their IORESOURCE_IRQ resource if configured as such, much like it's been done for the smc91x driver. It spares people writing support for specific boards the burden to configure the interrupt controller independantly, and keeps all IRQ related information in a single resource. HCD that are integrally part of a SoC have been left aside, as there is probably no "wiring" options... Tested on an Xscale PXA-255 based platform with isp116x-hcd. Signed-off-by: Marc Zyngier <marc.zyngier@altran.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (46 commits) UIO: Fix mapping of logical and virtual memory UIO: add automata sercos3 pci card support UIO: Change driver name of uio_pdrv UIO: Add alignment warnings for uio-mem Driver core: add bus_sort_breadthfirst() function NET: convert the phy_device file to use bus_find_device_by_name kobject: Cleanup kobject_rename and !CONFIG_SYSFS kobject: Fix kobject_rename and !CONFIG_SYSFS sysfs: Make dir and name args to sysfs_notify() const platform: add new device registration helper sysfs: use ilookup5() instead of ilookup5_nowait() PNP: create device attributes via default device attributes Driver core: make bus_find_device_by_name() more robust usb: turn dev_warn+WARN_ON combos into dev_WARN debug: use dev_WARN() rather than WARN_ON() in device_pm_add() debug: Introduce a dev_WARN() function sysfs: fix deadlock device model: Do a quickcheck for driver binding before doing an expensive check Driver core: Fix cleanup in device_create_vargs(). Driver core: Clarify device cleanup. ...
2008-10-16usb: turn dev_warn+WARN_ON combos into dev_WARNArjan van de Ven
dev_WARN is both compacter and gives better debug information than just a WARN_ON, since people and tools will copy the device information message together with the WARN_ON in bug reports. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-15Merge branch 'fixes' into for-linusRussell King
Conflicts: arch/arm/mach-versatile/core.c
2008-10-14Merge branch 's3c-move' into develRussell King
Conflicts: arch/arm/mach-versatile/core.c
2008-10-14Merge branch 'omap-all' into develRussell King
Conflicts: arch/arm/mach-omap2/gpmc.c arch/arm/mach-omap2/irq.c
2008-10-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: (49 commits) pcmcia: ioctl-internal definitions pcmcia: cistpl header cleanup pcmcia: remove unused argument to pcmcia_parse_tuple() pcmcia: card services header cleanup pcmcia: device_id header cleanup pcmcia: encapsulate ioaddr_t pcmcia: cleanup device driver header file pcmcia: cleanup socket services header file pcmcia: merge ds_internal.h into cs_internal.h pcmcia: cleanup cs_internal.h pcmcia: cs_internal.h is internal pcmcia: use dev_printk for cs_error() pcmcia: remove CS_ error codes alltogether pcmcia: deprecate CS_BAD_TUPLE pcmcia: deprecate CS_BAD_ARGS pcmcia: deprecate CS_BAD_BASE, CS_BAD_IRQ, CS_BAD_OFFSET and CS_BAD_SIZE pcmcia: deprecate CS_BAD_ATTRIBUTE, CS_BAD_TYPE and CS_BAD_PAGE pcmcia: deprecate CS_NO_MORE_ITEMS pcmcia: deprecate CS_IN_USE pcmcia: deprecate CS_CONFIGURATION_LOCKED ... Fix trivial conflict in drivers/pcmcia/ds.c manually
2008-10-12Merge branches 'x86/xen', 'x86/build', 'x86/microcode', 'x86/mm-debug-v2', ↵Ingo Molnar
'x86/memory-corruption-check', 'x86/early-printk', 'x86/xsave', 'x86/ptrace-v2', 'x86/quirks', 'x86/setup', 'x86/spinlocks' and 'x86/signal' into x86/core-v2
2008-10-11Merge 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: (236 commits) [ARM] 5300/1: fixup spitz reset during boot [ARM] 5295/1: make ZONE_DMA optional [ARM] 5239/1: Palm Zire 72 power management support [ARM] 5298/1: Drop desc_handle_irq() [ARM] 5297/1: [KS8695] Fix two compile-time warnings [ARM] 5296/1: [KS8695] Replace macro's with trailing underscores. [ARM] pxa: allow multi-machine PCMCIA builds [ARM] pxa: add preliminary CPUFREQ support for PXA3xx [ARM] pxa: add missing ACCR bit definitions to pxa3xx-regs.h [ARM] pxa: rename cpu-pxa.c to cpufreq-pxa2xx.c [ARM] pxa/zylonite: add support for USB OHCI [ARM] ohci-pxa27x: use ioremap() and offset for register access [ARM] ohci-pxa27x: introduce pxa27x_clear_otgph() [ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resource [ARM] ohci-pxa27x: move OHCI controller specific registers into the driver [ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registers [ARM] pxa: move I2S register and bit definitions into pxa2xx-i2s.c [ARM] pxa: simplify DMA register definitions [ARM] pxa: make additional DCSR bits valid for PXA3xx [ARM] pxa: move i2c register and bit definitions into i2c-pxa.c ... Fixed up conflicts in arch/arm/mach-versatile/core.c sound/soc/pxa/pxa2xx-ac97.c sound/soc/pxa/pxa2xx-i2s.c manually.
2008-10-10ALSA: Correct Vladimir Barinov's e-mail addressVladimir Barinov
Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-10-07[ARM] ohci-pxa27x: use ioremap() and offset for register accessEric Miao
This avoid the pre-mapping of OHCI controller register space, and the mapping is made only when necessary (OHCI is probed). Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-07[ARM] ohci-pxa27x: introduce pxa27x_clear_otgph()Eric Miao
Direct access to pxa27x specific register PSSR in a generic ohci driver is no good, introduce pxa27x_clear_otgph() and move the implementation into processor specific code. Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-07[ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resourceEric Miao
Depending on the order of how resource is defined in the platform device is not good, use platform_get_{irq,resource} for the IRQ and memory resources. Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-07[ARM] ohci-pxa27x: move OHCI controller specific registers into the driverEric Miao
Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-07[ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registersEric Miao
Direct access to USB host controller registers is considered to be not portable, and is usually a bad sign for poorly abstracted interface. Introduce .flags and .power_on_delay to "struct pxaohci_platform_data" so that most platforms don't bother to write their own .init/.exit() sequences. Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-23USB: fix EHCI periodic transfersDavid Brownell
As noted by Stefan Neis <Stefan.Neis@kobil.com>, we had a recent regression with EHCI periodic transfers, in some (seemingly not all that common) cases. The root cause was that the schedule activation was only loosely coupled to the addition or removal of transfers, so two different execution contexts could both think they had to deactivate (or conversely activate) the schedule. So this fix tightens that coupling, managing it more like a refcount. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-09-23USB: ehci: fix some ehci hangs and crashesDavid Brownell
I noticed that the "Refactor "if (handshake()) state = HC_STATE_HALT" patch from earlier this year perpetuated a potential problem: it can mark the controller as halted when it's still running (but not acting as, perhaps wrongly, expected). That caused some hangs and crashes, rather than more polite failure modes of a truly halted controller. This patch forces a true halt, and emits a (previously missing) diagnostic. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-09-05[ARM] omap: convert OMAP drivers to use ioremap()Russell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-04[ARM] omap: fix build error in ohci-omap.cRussell King
drivers/usb/host/ohci-omap.c: In function 'ohci_omap_init': drivers/usb/host/ohci-omap.c:228: error: 'start_hnp' undeclared (first use in this function) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-29pcmcia: encapsulate ioaddr_tDominik Brodowski
By now, ioaddr_t should only be used by the deprecated ioctl, as it does not correctly reflect the maximum ioport range at least on some architectures. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2008-08-23pcmcia: pcmcia_config_loop() improvement by passing vccDominik Brodowski
By passing the current Vcc setting to the pcmcia_config_loop callback function, we can remove pcmcia_get_configuration_info() calls from many drivers. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2008-08-23pcmcia: pcmcia_config_loop() default CIS entry handlingDominik Brodowski
Many drivers use the default CIS entry within their pcmcia_config_loop() callback function. Therefore, factor the default CIS entry handling out. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2008-08-23pcmcia: pcmcia_config_loop() ConfigIndex unificationDominik Brodowski
Almost all drivers set p_dev->conf.ConfigIndex to cfg->index in the pcmcia_config_loop() callback function. Therefore, factor it out. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2008-08-23pcmcia: use pcmcia_loop_config in misc pcmcia driversDominik Brodowski
Use the config loop helper in misc pcmcia drivers. CC: Harald Welte <laforge@gnumonks.org> CC: <linux-parport@lists.infradead.org> CC: Russell King <rmk+kernel@arm.linux.org.uk> CC: Ed Okerson <eokerson@quicknet.net> CC: linux-serial@vger.kernel.org CC: boti@rocketmail.com CC: linux-usb@vger.kernel.org Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2008-08-21USB: automatically enable RHSC interruptsAlan Stern
This patch (as1069c) changes the way OHCI root-hub status-change interrupts are enabled. Currently a special HCD method, hub_irq_enable(), is called when the hub driver is finished using a root hub. This approach turns out to be subject to races, resulting in unnecessary polling. The patch does away with the method entirely. Instead, the driver automatically enables the RHSC interrupt when no more status changes are present. This scheme is safe with controllers using level-triggered semantics for their interrupt flags. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-21USB: ISP1760: fixed trivial math in commentEnrico Scholz
Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Acked-by: Sebastian Siewior <sebastian@breakpoint.cc> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-16Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: (38 commits) [ARM] 5191/1: ARM: remove CVS keywords [ARM] pxafb: fix the warning of incorrect lccr when lcd_conn is specified [ARM] pxafb: add flag to specify output format on LDD pins when base is RGBT16 [ARM] pxafb: fix the incorrect configuration of GPIO77 as ACBIAS for TFT LCD [ARM] 5198/1: PalmTX: PCMCIA fixes [ARM] Fix a pile of broken watchdog drivers [ARM] update mach-types [ARM] 5196/1: fix inline asm constraints for preload [ARM] 5194/1: update .gitignore [ARM] add proc-macros.S include to proc-arm940 and proc-arm946 [ARM] 5192/1: ARM TLB: add v7wbi_{possible,always}_flags to {possible,always}_tlb_flags [ARM] 5193/1: Wire up missing syscalls [ARM] traps: don't call undef hook functions with spinlock held [ARM] 5183/2: Provide Poodle LoCoMo GPIO names [ARM] dma-mapping: provide sync_range APIs [ARM] dma-mapping: improve type-safeness of DMA translations [ARM] Kirkwood: instantiate the orion_spi driver in the platform code [ARM] prevent crashing when too much RAM installed [ARM] Kirkwood: Instantiate mv_xor driver [ARM] Orion: Instantiate mv_xor driver for 5182 ...
2008-08-13USB: quirk PLL power down modeLibin Yang
On some AMD 700 series southbridges, ISO OUT transfers (such as audio playback through speakers) on the USB OHCI controller may be corrupted when an A-Link express power saving feature is active. PLL power down mode in conjunction with link power management feature L1 being enabled is the bad combination ... this patch prevents them from being enabled when ISO transfers are pending. Signed-off-by: Crane Cai <crane.cai@amd.com> Signed-off-by: Libin Yang <libin.yang@amd.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13USB: sh: r8a66597-hcd: fix disconnect regressionYoshihiro Shimoda
fix the regression in commit 29fab0cd897519be9009ba8c898410ab83b378e9 that this driver executed reconnection processing when disconnected some devices. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13usb: isp1760: don't be noisy about short packets.Sebastian Siewior
According to Alan Stern, short packets are quite normal under certain circumstances. This printk was triggered by usb to serial converters on every packet and some usb sticks triggered a few of those while plugging the stick. This printks are now hidden unless USB debug mode is activated. Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13usb: ISP1760: improve pre-fetch timingEnrico Scholz
ISP1760 requires a delay of 90ns between programming the address and reading the data. Current driver solves this by a mdelay(1) which is very heavy weighted and slow. This patch applies the workaround from the ISP1760 FAQ by using two different banks for PTD and payload data and using a common wait for them. This wait is done by an additional ISP1760 access (whose timing constraints guarantee the 90ns delay). This improves speed when reading from an USB stick from: $ time dd if=/dev/sda of=/dev/zero bs=65536 count=1638 real 1m 15.43s user 0m 0.44s sys 0m 39.46s to $ time dd if=/dev/sda of=/dev/zero bs=65536 count=1638 real 0m 18.53s user 0m 0.16s sys 0m 12.97s [bigeasy@linutronix.de: fixed comment formating, moved define into header file, obey 80 char rule] Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13usb: return error code instead of 0 in the enqueue function.Sebastian Siewior
if the enqueue function returns -ESHUTDOWN or -ENOMEM then we return 0 instead of an error. This leads to a timeout and then to a dequeue request of an not enqueued urb. Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13USB: Hook start_hnp into ohci structDmitry Baryshkov
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13USB: ohci: make distrust_firmware a quirkDmitry Baryshkov
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13USB: OHCI: fix system hang caused by earlier patchAlan Stern
This patch (as1114) fixes a problem that was revealed by an earlier patch (as1069b). Some broken controllers seem never to turn off their RHCS interrupt status bit, even when told to do so. As a result they generate an interrupt storm and hang the system. The patch avoids enabling RHSC interrupt requests when the RHCS status bit is already set. This should have no adverse affects on normal controllers, since they won't set the status bit until a root-hub status change actually occurs, in which case we wouldn't enable RHSC interrupt requests anyway -- we would wait until the status change had been processed and cleared. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Tested by: Andrey Borzenkov <arvidjaar@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-09Merge branch 'for-rmk' of git://git.marvell.com/orionRussell King