Commit Graph

606 Commits

Author SHA1 Message Date
Alan Stern 71b7497c07 USB: OHCI: fix endless polling behavior
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>
2008-10-17 14:41:04 -07:00
Alan Stern eafe5b99f2 USB: EHCI: fix remote-wakeup support for ARC/TDI core
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>
2008-10-17 14:41:03 -07:00
Alan Stern 9beeee6584 USB: EHCI: log a warning if ehci-hcd is not loaded first
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>
2008-10-17 14:41:03 -07:00
Alan Stern 2b70f07343 USB: EHCI, OHCI, UHCI: remove version numbers
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>
2008-10-17 14:41:02 -07:00
Julien Brunel ce5dee50ed USB: isp1760: Use an IS_ERR test rather than a NULL test
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>
2008-10-17 14:41:02 -07:00
Yi Yang f0d781d59c USB: improve ehci_watchdog's side effect in CPU power management
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>
2008-10-17 14:41:02 -07:00
Alan Stern e58dcebcd8 USB: UHCI: improve scheduling of interrupt URBs
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>
2008-10-17 14:41:01 -07:00
Tony Lindgren 9b466c3b82 USB: ohci-omap: handle other omap15xx chips
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>
2008-10-17 14:40:59 -07:00
Kumar Gala cede969fe2 usb: remove code associated with !CONFIG_PPC_MERGE
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>
2008-10-17 14:40:57 -07:00
Ming Lei 3c4bb71f96 USB: ehci-dbg: fix reading less content of periodic file
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>
2008-10-17 14:40:57 -07:00
Ming Lei 3c04e20ea9 USB: ehci-dbg: increase debug buffer size for periodic file
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>
2008-10-17 14:40:57 -07:00
Alan Stern 4a511bc3f5 OHCI: Allow broken controllers to auto-stop
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>
2008-10-17 14:40:54 -07:00
Marc Zyngier 2714021937 USB: Let some USB host controllers get IRQ flags from resource
[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>
2008-10-17 14:40:52 -07:00
Linus Torvalds c813b4e16e Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* 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.
  ...
2008-10-16 12:40:26 -07:00
Arjan van de Ven 5172046d96 usb: turn dev_warn+WARN_ON combos into dev_WARN
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>
2008-10-16 09:24:50 -07:00
Russell King 2502991560 Merge branch 'fixes' into for-linus
Conflicts:

	arch/arm/mach-versatile/core.c
2008-10-15 23:16:07 +01:00
Russell King 7e69a8c4d0 Merge branch 's3c-move' into devel
Conflicts:

	arch/arm/mach-versatile/core.c
2008-10-14 22:24:51 +01:00
Russell King b6825d2df5 Merge branch 'omap-all' into devel
Conflicts:

	arch/arm/mach-omap2/gpmc.c
	arch/arm/mach-omap2/irq.c
2008-10-14 22:24:42 +01:00
Linus Torvalds 2be4ff2f08 Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
* 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
2008-10-13 14:12:40 -07:00
Ingo Molnar 8daf14cf56 Merge branches 'x86/xen', 'x86/build', 'x86/microcode', 'x86/mm-debug-v2', '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 2008-10-12 15:50:02 +02:00
Linus Torvalds 7cc4e87f91 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* '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.
2008-10-11 10:09:45 -07:00
Vladimir Barinov d6b52039c9 ALSA: Correct Vladimir Barinov's e-mail address
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-10-10 13:41:45 +02:00
Eric Miao 0c392ed9a7 [ARM] ohci-pxa27x: use ioremap() and offset for register access
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 19:12:58 +01:00
Eric Miao 0cb0b0d3c6 [ARM] ohci-pxa27x: introduce pxa27x_clear_otgph()
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 19:12:58 +01:00
Eric Miao 84bab7393b [ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resource
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 19:12:58 +01:00
Eric Miao 596050bc75 [ARM] ohci-pxa27x: move OHCI controller specific registers into the driver
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-07 19:12:57 +01:00
Eric Miao 097b53348f [ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registers
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>
2008-10-07 19:12:57 +01:00
David Brownell 01c1714265 USB: fix EHCI periodic transfers
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>
2008-09-23 13:58:08 -07:00
David Brownell 0bcfeb3ec9 USB: ehci: fix some ehci hangs and crashes
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>
2008-09-23 13:58:06 -07:00
Russell King 55c381e489 [ARM] omap: convert OMAP drivers to use ioremap()
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-05 17:02:30 +01:00
Russell King c3df1a2685 [ARM] omap: fix build error in ohci-omap.c
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>
2008-09-04 09:45:47 +01:00
Dominik Brodowski d39bd56452 pcmcia: encapsulate ioaddr_t
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>
2008-08-29 09:43:14 +02:00
Dominik Brodowski ad913c1192 pcmcia: pcmcia_config_loop() improvement by passing vcc
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>
2008-08-23 01:22:52 +02:00
Dominik Brodowski 8e2fc39dde pcmcia: pcmcia_config_loop() default CIS entry handling
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>
2008-08-23 01:22:00 +02:00
Dominik Brodowski 498ac1899b pcmcia: pcmcia_config_loop() ConfigIndex unification
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>
2008-08-23 01:21:29 +02:00
Dominik Brodowski 84e2d34004 pcmcia: use pcmcia_loop_config in misc pcmcia drivers
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>
2008-08-23 01:21:29 +02:00
Alan Stern b5fb454f69 USB: automatically enable RHSC interrupts
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>
2008-08-21 10:26:38 -07:00
Enrico Scholz 380ec6780a USB: ISP1760: fixed trivial math in comment
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>
2008-08-21 10:26:32 -07:00
Linus Torvalds 9c0d2a20fe Merge master.kernel.org:/home/rmk/linux-2.6-arm
* 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
  ...
2008-08-16 16:48:45 -07:00
Libin Yang ab1666c136 USB: quirk PLL power down mode
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>
2008-08-13 17:32:58 -07:00
Yoshihiro Shimoda 54d0be9e3a USB: sh: r8a66597-hcd: fix disconnect regression
fix the regression in commit 29fab0cd89
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>
2008-08-13 17:32:56 -07:00
Sebastian Siewior 7839b5162d usb: isp1760: don't be noisy about short packets.
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>
2008-08-13 17:32:55 -07:00
Enrico Scholz 3f02a957d5 usb: ISP1760: improve pre-fetch timing
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>
2008-08-13 17:32:53 -07:00
Sebastian Siewior a36c27dfd1 usb: return error code instead of 0 in the enqueue function.
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>
2008-08-13 17:32:53 -07:00
Dmitry Baryshkov e8b24450a6 USB: Hook start_hnp into ohci struct
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>
2008-08-13 17:32:52 -07:00
Dmitry Baryshkov 1133cd8adf USB: ohci: make distrust_firmware a quirk
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>
2008-08-13 17:32:52 -07:00
Alan Stern 38b375d961 USB: OHCI: fix system hang caused by earlier patch
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>
2008-08-13 17:32:49 -07:00
Russell King 492c71dd54 Merge branch 'for-rmk' of git://git.marvell.com/orion 2008-08-09 18:03:13 +01:00
Lennert Buytenhek 6f088f1d21 [ARM] Move include/asm-arm/plat-orion to arch/arm/plat-orion/include/plat
This patch performs the equivalent include directory shuffle for
plat-orion, and fixes up all users.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
2008-08-09 13:44:58 +02:00
Linus Torvalds 49b75b87ce Merge branch 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 5177/1: arm/mach-sa1100/Makefile: remove CONFIG_SA1100_USB
  [ARM] 5166/1: magician: add MAINTAINERS entry
  [ARM] fix pnx4008 build errors
  [ARM] Fix SMP booting with non-zero PHYS_OFFSET
  [ARM] 5185/1: Fix spi num_chipselect for lubbock
  [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach
  [ARM] Add support for arch/arm/mach-*/include and arch/arm/plat-*/include
  [ARM] Remove asm/hardware.h, use asm/arch/hardware.h instead
  [ARM] Eliminate useless includes of asm/mach-types.h
  [ARM] Fix circular include dependency with IRQ headers
  avr32: Use <mach/foo.h> instead of <asm/arch/foo.h>
  avr32: Introduce arch/avr32/mach-*/include/mach
  avr32: Move include/asm-avr32 to arch/avr32/include/asm
  [ARM] sa1100_wdt: use reset_status to remember watchdog reset status
  [ARM] pxa: introduce reset_status and clear_reset_status for driver's usage
  [ARM] pxa: introduce reset.h for reset specific header information
2008-08-08 11:38:42 -07:00