Commit Graph

135047 Commits

Author SHA1 Message Date
Sascha Hauer
613330a0f7 regulator: provide a helper for registering a fixed regulator
Some devices require a regulator to work, but boards may not have
a software controllable regulator for this device. Provide a helper
function to make it simpler for these boards to register a fixed
regulator as a dummy regulator.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-03 16:32:47 +00:00
Linus Torvalds
00b10ecf2d Couple of minor driver fixes.
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Couple of minor driver fixes.

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (max34440) Fix resetting temperature history
  hwmon: (f75375s) Fix register write order when setting fans to full speed
  hwmon: (ads1015) Fix file leak in probe function
  hwmon: (max6639) Fix PPR register initialization to set both channels
  hwmon: (max6639) Fix FAN_FROM_REG calculation
2012-02-25 12:12:08 -08:00
Linus Torvalds
b52b80023f One InfiniBand/RDMA regression fix for 3.3:
- mlx4 SR-IOV changes added static exported functions, which doesn't
    build on powerpc at least.  Fix from Doug Ledford for this.
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Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

One InfiniBand/RDMA regression fix for 3.3:

 - mlx4 SR-IOV changes added static exported functions, which doesn't
   build on powerpc at least.  Fix from Doug Ledford for this.

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  mlx4_core: Exported functions can't be static
2012-02-24 20:03:14 -08:00
Linus Torvalds
16bca1d572 SCSI fixes on 20120224
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

SCSI fixes on 20120224:
 "This is a set of assorted bug fixes for power management, mpt2sas,
  ipr, the rdac device handler and quite a big chunk for qla2xxx (plus a
  use after free of scsi_host in scsi_scan.c). "

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] scsi_dh_rdac: Fix for unbalanced reference count
  [SCSI] scsi_pm: Fix bug in the SCSI power management handler
  [SCSI] scsi_scan: Fix 'Poison overwritten' warning caused by using freed 'shost'
  [SCSI] qla2xxx: Update version number to 8.03.07.13-k.
  [SCSI] qla2xxx: Proper detection of firmware abort error code for ISP82xx.
  [SCSI] qla2xxx: Remove resetting memory during device initialization for ISP82xx.
  [SCSI] qla2xxx: Complete mailbox command timedout to avoid initialization failures during next reset cycle.
  [SCSI] qla2xxx: Remove check for null fcport from host reset handler.
  [SCSI] qla2xxx: Correct out of bounds read of ISP2200 mailbox registers.
  [SCSI] qla2xxx: Remove errant clearing of MBX_INTERRUPT flag during CT-IOCB processing.
  [SCSI] qla2xxx: Clear options-flags while issuing stop-firmware mbx command.
  [SCSI] qla2xxx: Add an "is reset active" helper.
  [SCSI] qla2xxx: Add check for null fcport references in qla2xxx_queuecommand.
  [SCSI] qla2xxx: Propagate up abort failures.
  [SCSI] isci: Fix NULL ptr dereference when no firmware is being loaded
  [SCSI] ipr: fix eeh recovery for 64-bit adapters
  [SCSI] mpt2sas: Fix mismatch in mpt2sas_base_hard_reset_handler() mutex lock-unlock
2012-02-24 16:08:51 -08:00
Linus Torvalds
e98092bedc Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] hdpvr: update picture controls to support firmware versions > 0.15
  [media] wl128x: fix build errors when GPIOLIB is not enabled
  [media] hdpvr: fix race conditon during start of streaming
  [media] omap3isp: Fix crash caused by subdevs now having a pointer to devnodes
  [media] imon: don't wedge hardware after early callbacks
2012-02-24 12:32:51 -08:00
Linus Torvalds
0e69e08401 SuperH fixes for 3.3-rc5
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Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

SuperH fixes for 3.3-rc5

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
  sh: Fix sh2a build error for CONFIG_CACHE_WRITETHROUGH
  sh: modify a resource of sh_eth_giga1_resources in board-sh7757lcr
  arch/sh: remove references to cpu_*_map.
  sh: Fix typo in pci-sh7780.c
  sh: add platform_device for SPI1 in setup-sh7757
  sh: modify resource for SPI0 in setup-sh7757
  sh: se7724: fix compile breakage
  sh: clkfwk: bugfix: use clk_reparent() for div6 clocks
  sh: clock-sh7724: fixup sh_fsi clock settings
  sh: sh7757lcr: update to the new MMCIF DMA configuration
  sh: fix the sh_mmcif_plat_data in board-sh7757lcr
  video: pvr2fb: Fix up spurious section mismatch warnings.
  sh: Defer to asm-generic/device.h.
2012-02-24 08:56:51 -08:00
Guenter Roeck
dc91ad8e84 hwmon: (max34440) Fix resetting temperature history
Temperature history is reset by writing 0x8000 into the peak temperature
register, not 0xffff.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
2012-02-24 08:06:15 -08:00
Linus Torvalds
73c8e679aa Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
BenH says:
 'Here are a few more powerpc bits for you.  A stupid regression I
  introduced with my previous commit to "fix" program check exceptions
  (brown paper bag for me), fix the cpuidle default, a bug fix for
  something that isn't strictly speaking a regression but some upstream
  changes causes it to show in lockdep now while it didn't before, and
  finally a trivial one for rusty to make his life easier later on
  removing the old cpumask cruft. '

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Fix various issues with return to userspace
  cpuidle: Default y on powerpc pSeries
  powerpc: Fix program check handling when lockdep is enabled
  powerpc: Remove references to cpu_*_map
2012-02-23 11:48:36 -08:00
Nikolaus Schulz
c1c1a3d012 hwmon: (f75375s) Fix register write order when setting fans to full speed
By hwmon sysfs interface convention, setting pwm_enable to zero sets a fan
to full speed.  In the f75375s driver, this need be done by enabling
manual fan control, plus duty mode for the F875387 chip, and then setting
the maximum duty cycle.  Fix a bug where the two necessary register writes
were swapped, effectively discarding the setting to full-speed.

Signed-off-by: Nikolaus Schulz <mail@microschulz.de>
Cc: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2012-02-23 06:47:47 -08:00
Guenter Roeck
363434b5dc hwmon: (ads1015) Fix file leak in probe function
An error while creating sysfs attribute files in the driver's probe function
results in an error abort, but already created files are not removed. This patch
fixes the problem.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@vger.kernel.org # 3.0+
Cc: Dirk Eibach <eibach@gdsys.de>
Acked-by: Jean Delvare <khali@linux-fr.org>
2012-02-23 06:47:41 -08:00
Doug Ledford
22c8bff6fa mlx4_core: Exported functions can't be static
At least on powerpc, it breaks the build if exported functions are
static.  Fix some static exported functions introduced with the mlx4
SR-IOV support added in 3.3-rc1.

Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-02-22 23:00:38 -08:00
Linus Torvalds
45196cee28 USB bugfixes for 3.3-rc4
A number of new device ids, and a cleanup/fix for some of the option
 device ids that shouldn't have been added in the first place.
 
 There's also a few USB 3 fixes for problems that people have reported,
 and a usb-storage bugfix to round it out.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

USB bugfixes for 3.3-rc4

A number of new device ids, and a cleanup/fix for some of the option
device ids that shouldn't have been added in the first place.

There's also a few USB 3 fixes for problems that people have reported,
and a usb-storage bugfix to round it out.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

* tag 'usb-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: Added Kamstrup VID/PIDs to cp210x serial driver.
  USB: Serial: ti_usb_3410_5052: Add Abbot Diabetes Care cable id
  usb-storage: fix freezing of the scanning thread
  xhci: Fix encoding for HS bulk/control NAK rate.
  USB: Set hub depth after USB3 hub reset
  USB: Fix handoff when BIOS disables host PCI device.
  USB: option: cleanup zte 3g-dongle's pid in option.c
  USB: Don't fail USB3 probe on missing legacy PCI IRQ.
  xhci: Fix oops caused by more USB2 ports than USB3 ports.
  USB: Remove duplicate USB 3.0 hub feature #defines.
2012-02-22 13:00:53 -08:00
Linus Torvalds
e2d4370b78 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Intel, radeon, exynos fixes.

Intel: fixes a few Ivybridge hangs, along with fixing RC6 on SNB (still
not on, but at least allows for distros to patch it on easily).

radeon: oops reading some files in debugfs that weren't meant to appear,
a fix that touches a lot of files, so looks worse than it is, it fixes
an oops if a GPU reset fails and userspace keeps submitting more data,
along with a minor BIOS fix for newer boards.

exynos: a group of fixes for exynos, they've sent me a few more but
these were all I got through, and its no hw vanilla kernel users see a
lot off yet.

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/kms/atom: dpms bios scratch reg updates
  drm/radeon/kms: properly set accel working flag and bailout when false
  drm/radeon: Only create additional ring debugfs files on Cayman or newer.
  drm/exynos: added postclose to release resource.
  drm/exynos: removed exynos_drm_fbdev_recreate function.
  drm/exynos: fixed page flip issue.
  drm/exynos: added possible_clones setup function.
  drm/exynos: removed pageflip_event_list init code when closed.
  drm/exynos: changed priority of mixer layers.
  drm/exynos: Fix typo in exynos_mixer.c
  drm/i915: do not enable RC6p on Sandy Bridge
  drm/i915: gen7: Disable the RHWO optimization as it can cause GPU hangs.
  drm/i915: gen7: work around a system hang on IVB
  drm/i915: gen7: Implement an L3 caching workaround.
  drm/i915: gen7: implement rczunit workaround
2012-02-22 11:58:30 -08:00
Moger, Babu
3569e5374d [SCSI] scsi_dh_rdac: Fix for unbalanced reference count
This patch fixes an unbalanced refcount issue.

Elevating the lock for both kref_put and also for controller node deletion.
Previously, controller deletion was protected but the not the kref_put. This
was causing the other thread to pick up the controller structure which was
already kref'd zero.

This was causing the following WARN_ON and also sometimes panic.

WARNING: at lib/kref.c:43 kref_get+0x2d/0x30() (Not tainted)
Hardware name: IBM System x3655 -[7985AC1]-
Modules linked in: fuse scsi_dh_rdac autofs4 nfs lockd fscache nfs_acl
auth_rpcgss sunrpc 8021q garp stp llc ipv6 ib_srp(U) scsi_transport_srp
scsi_tgt ib_cm(U) ib_sa(U) ib_uverbs(U) ib_umad(U) mlx4_ib(U) mlx4_core(U)
ib_mthca(U) ib_mad(U) ib_core(U) dm_mirror dm_region_hash dm_log dm_round_robin
dm_multipath uinput bnx2 ses enclosure sg ibmpex ibmaem ipmi_msghandler
serio_raw k8temp hwmon amd64_edac_mod edac_core edac_mce_amd shpchp i2c_piix4
ext4 mbcache jbd2 sr_mod cdrom sd_mod crc_t10dif sata_svw pata_acpi ata_generic
pata_serverworks aacraid radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core
dm_mod [last unloaded: freq_table]
Pid: 13735, comm: srp_daemon Not tainted 2.6.32-71.el6.x86_64 #1
Call Trace:
[<ffffffff8106b857>] warn_slowpath_common+0x87/0xc0
[<ffffffff8106b8aa>] warn_slowpath_null+0x1a/0x20
[<ffffffff8125c39d>] kref_get+0x2d/0x30
[<ffffffffa01b4029>] rdac_bus_attach+0x459/0x580 [scsi_dh_rdac]
[<ffffffff8135232a>] scsi_dh_handler_attach+0x2a/0x80
[<ffffffff81352c7b>] scsi_dh_notifier+0x9b/0xa0
[<ffffffff814cd7a5>] notifier_call_chain+0x55/0x80
[<ffffffff8109711a>] __blocking_notifier_call_chain+0x5a/0x80
[<ffffffff81097156>] blocking_notifier_call_chain+0x16/0x20
[<ffffffff8132bec5>] device_add+0x515/0x640
[<ffffffff813329e4>] ? attribute_container_device_trigger+0xc4/0xe0
[<ffffffff8134f659>] scsi_sysfs_add_sdev+0x89/0x2c0
[<ffffffff8134d096>] scsi_probe_and_add_lun+0xea6/0xed0
[<ffffffff8134beb2>] ? scsi_alloc_target+0x292/0x2d0
[<ffffffff8134d1e1>] __scsi_scan_target+0x121/0x750
[<ffffffff811df806>] ? sysfs_create_file+0x26/0x30
[<ffffffff8132b759>] ? device_create_file+0x19/0x20
[<ffffffff81332838>] ? attribute_container_add_attrs+0x78/0x90
[<ffffffff814b008c>] ? klist_next+0x4c/0xf0
[<ffffffff81332e30>] ? transport_configure+0x0/0x20
[<ffffffff813329e4>] ? attribute_container_device_trigger+0xc4/0xe0
[<ffffffff8134df40>] scsi_scan_target+0xd0/0xe0
[<ffffffffa02f053a>] srp_create_target+0x75a/0x890 [ib_srp]
[<ffffffff8132a130>] dev_attr_store+0x20/0x30
[<ffffffff811df145>] sysfs_write_file+0xe5/0x170
[<ffffffff8116c818>] vfs_write+0xb8/0x1a0
[<ffffffff810d40a2>] ? audit_syscall_entry+0x272/0x2a0
[<ffffffff8116d251>] sys_write+0x51/0x90
[<ffffffff81013172>] system_call_fastpath+0x16/0x1b

Signed-off-by: Babu Moger <babu.moger@netapp.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-22 12:15:19 -06:00
Alex Deucher
3ac0eb6d62 drm/radeon/kms/atom: dpms bios scratch reg updates
dpms bits not used on DCE4+

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-22 10:30:06 +00:00
Jerome Glisse
6b7746e876 drm/radeon/kms: properly set accel working flag and bailout when false
If accel is not working many subsystem such as the ib pool might not be
initialized properly that can lead to segfault inside kernel when cs
ioctl is call with non working acceleration. To avoid this make sure
the accel working flag is false when an error in GPU startup happen and
return EBUSY from cs ioctl if accel is not working.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-22 10:30:02 +00:00
Michel Dänzer
f0d14daa69 drm/radeon: Only create additional ring debugfs files on Cayman or newer.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=46274

Tested with a Cayman card in a Llano system: The additional files are created
and working for the Cayman card but not created for the CPU's built-in GPU.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-22 10:28:52 +00:00
Dave Airlie
bb757a7e25 Merge branch 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/drm-intel into drm-fixes
* 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/drm-intel:
  drm/i915: do not enable RC6p on Sandy Bridge
  drm/i915: gen7: Disable the RHWO optimization as it can cause GPU hangs.
  drm/i915: gen7: work around a system hang on IVB
  drm/i915: gen7: Implement an L3 caching workaround.
  drm/i915: gen7: implement rczunit workaround
2012-02-22 08:02:17 +00:00
Benjamin Herrenschmidt
aa491ad3d4 cpuidle: Default y on powerpc pSeries
We moved all our pSeries idle loops to the cpu idle framework
so we really want it to come up by default.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-22 16:48:51 +11:00
Hitoshi Mitake
797a796a13 asm-generic: architecture independent readq/writeq for 32bit environment
This provides unified readq()/writeq() helper functions for 32-bit
drivers.

For some cases, readq/writeq without atomicity is harmful, and order of
io access has to be specified explicitly.  So in this patch, new two
header files which contain non-atomic readq/writeq are added.

 - <asm-generic/io-64-nonatomic-lo-hi.h> provides non-atomic readq/
   writeq with the order of lower address -> higher address

 - <asm-generic/io-64-nonatomic-hi-lo.h> provides non-atomic readq/
   writeq with reversed order

This allows us to remove some readq()s that were added drivers when the
default non-atomic ones were removed in commit dbee8a0aff ("x86:
remove 32-bit versions of readq()/writeq()")

The drivers which need readq/writeq but can do with the non-atomic ones
must add the line:

  #include <asm-generic/io-64-nonatomic-lo-hi.h> /* or hi-lo.h */

But this will be nop in 64-bit environments, and no other #ifdefs are
required.  So I believe that this patch can solve the problem of
 1. driver-specific readq/writeq
 2. atomicity and order of io access

This patch is tested with building allyesconfig and allmodconfig as
ARCH=x86 and ARCH=i386 on top of tip/master.

Cc: Kashyap Desai <Kashyap.Desai@lsi.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Ravi Anand <ravi.anand@qlogic.com>
Cc: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Jason Uhlenkott <juhlenko@akamai.com>
Cc: James Bottomley <James.Bottomley@parallels.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Roland Dreier <roland@purestorage.com>
Cc: James Bottomley <jbottomley@parallels.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Hitoshi Mitake <h.mitake@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-21 16:47:28 -08:00
Bruno Thomsen
c6c1e4491d USB: Added Kamstrup VID/PIDs to cp210x serial driver.
Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-21 16:29:15 -08:00
Andrew Lunn
7fd25702ba USB: Serial: ti_usb_3410_5052: Add Abbot Diabetes Care cable id
This USB-serial cable with mini stereo jack enumerates as:
Bus 001 Device 004: ID 1a61:3410 Abbott Diabetes Care

It is a TI3410 inside.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-21 16:29:15 -08:00
Alan Stern
bb94a40668 usb-storage: fix freezing of the scanning thread
This patch (as1521b) fixes the interaction between usb-storage's
scanning thread and the freezer.  The current implementation has a
race: If the device is unplugged shortly after being plugged in and
just as a system sleep begins, the scanning thread may get frozen
before the khubd task.  Khubd won't be able to freeze until the
disconnect processing is complete, and the disconnect processing can't
proceed until the scanning thread finishes, so the sleep transition
will fail.

The implementation in the 3.2 kernel suffers from an additional
problem.  There the scanning thread calls set_freezable_with_signal(),
and the signals sent by the freezer will mess up the thread's I/O
delays, which are all interruptible.

The solution to both problems is the same: Replace the kernel thread
used for scanning with a delayed-work routine on the system freezable
work queue.  Freezable work queues have the nice property that you can
cancel a work item even while the work queue is frozen, and no signals
are needed.

The 3.2 version of this patch solves the problem in Bugzilla #42730.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Seth Forshee <seth.forshee@canonical.com>
CC: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-21 16:29:15 -08:00
Sarah Sharp
340a3504fd xhci: Fix encoding for HS bulk/control NAK rate.
The xHCI 0.96 spec says that HS bulk and control endpoint NAK rate must
be encoded as an exponent of two number of microframes.  The endpoint
descriptor has the NAK rate encoded in number of microframes.  We were
just copying the value from the endpoint descriptor into the endpoint
context interval field, which was not correct.  This lead to the VIA
host rejecting the add of a bulk OUT endpoint from any USB 2.0 mass
storage device.

The fix is to use the correct encoding.  Refactor the code to convert
number of frames to an exponential number of microframes, and make sure
we convert the number of microframes in HS bulk and control endpoints to
an exponent.

This should be back ported to kernels as old as 2.6.31, that contain the
commit dfa49c4ad1 "USB: xhci - fix math
in xhci_get_endpoint_interval"

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: Felipe Contreras <felipe.contreras@gmail.com>
Suggested-by: Andiry Xu <andiry.xu@amd.com>
Cc: stable@vger.kernel.org
2012-02-21 15:48:46 -08:00
Elric Fu
a45aa3b305 USB: Set hub depth after USB3 hub reset
The superspeed device attached to a USB 3.0 hub(such as VIA's)
doesn't respond the address device command after resume. The
root cause is the superspeed hub will miss the Hub Depth value
that is used as an offset into the route string to locate the
bits it uses to determine the downstream port number after
reset, and all packets can't be routed to the device attached
to the superspeed hub.

Hub driver sends a Set Hub Depth request to the superspeed hub
except for USB 3.0 root hub when the hub is initialized and
doesn't send the request again after reset due to the resume
process. So moving the code that sends the Set Hub Depth request
to the superspeed hub from hub_configure() to hub_activate()
is to cover those situations include initialization and reset.

The patch should be backported to kernels as old as 2.6.39.

Signed-off-by: Elric Fu <elricfu1@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable@vger.kernel.org
2012-02-21 15:45:25 -08:00
Sarah Sharp
cab928ee1f USB: Fix handoff when BIOS disables host PCI device.
On some systems with an Intel Panther Point xHCI host controller, the
BIOS disables the xHCI PCI device during boot, and switches the xHCI
ports over to EHCI.  This allows the BIOS to access USB devices without
having xHCI support.

The downside is that the xHCI BIOS handoff mechanism will fail because
memory mapped I/O is not enabled for the disabled PCI device.
Jesse Barnes says this is expected behavior.  The PCI core will enable
BARs before quirks run, but it will leave it in an undefined state, and
it may not have memory mapped I/O enabled.

Make the generic USB quirk handler call pci_enable_device() to re-enable
MMIO, and call pci_disable_device() once the host-specific BIOS handoff
is finished.  This will balance the ref counts in the PCI core.  When
the PCI probe function is called, usb_hcd_pci_probe() will call
pci_enable_device() again.

This should be back ported to kernels as old as 2.6.31.  That was the
first kernel with xHCI support, and no one has complained about BIOS
handoffs failing due to memory mapped I/O being disabled on other hosts
(EHCI, UHCI, or OHCI).

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: Oliver Neukum <oneukum@suse.de>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@vger.kernel.org
2012-02-21 15:45:08 -08:00
Chris D Schimp
2f2da1ac0b hwmon: (max6639) Fix PPR register initialization to set both channels
Initialize PPR register for both channels, and set correct PPR register bits.
Also remove unnecessary variable initializations.

Signed-off-by: Chris D Schimp <silverchris@gmail.com>
[guenter.roeck@ericsson.com: Merged two patches into one]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@vger.kernel.org # 3.0+
Acked-by: Roland Stigge <stigge@antcom.de>
2012-02-21 14:30:45 -08:00
Chris D Schimp
b63d97a36e hwmon: (max6639) Fix FAN_FROM_REG calculation
RPM calculation from tachometer value does not depend on PPR.
Also, do not report negative RPM values.

Signed-off-by: Chris D Schimp <silverchris@gmail.com>
[guenter.roeck@ericsson.com: do not report negative RPM values]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@vger.kernel.org # 3.0+
Acked-by: Roland Stigge <stigge@antcom.de>
2012-02-21 14:30:12 -08:00
Linus Torvalds
39e255dab5 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  [S390] correct ktime to tod clock comparator conversion
  [S390] 3215 deadlock with tty_wakeup
  [S390] incorrect PageTables counter for kvm page tables
  [S390] idle: avoid RCU usage in extended quiescent state
2012-02-20 16:13:39 -08:00
Linus Torvalds
be2874cb4e These are the bug fixes that have accumulated since 3.3-rc3 in arm-soc.
The majority of them are regression fixes for stuff that broke during
 the merge 3.3 window.
 
 The notable ones are:
 
 * The at91 ata drivers both broke because of an earlier cleanup patch that
   some other patches were based on. Jean-Christophe decided to remove
   the legacy at91_ide driver and fix the new-style at91-pata driver while
   keeping the cleanup patch. I almost rejected the patches for being too
   late and too big but in the end decided to accept them because they
   fix a regression.
 
 * A patch fixing build breakage from the sysdev-to-device conversion
   colliding with other changes touches a number of mach-s3c files.
 
 * b0654037 "ARM: orion: Fix Orion5x GPIO regression from MPP cleanup"
   is a mechanical change that unfortunately touches a lot of lines
   that should up in the diffstat.
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Merge tag 'fixes-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

These are the bug fixes that have accumulated since 3.3-rc3 in arm-soc.
The majority of them are regression fixes for stuff that broke during
the merge 3.3 window.

The notable ones are:

* The at91 ata drivers both broke because of an earlier cleanup patch that
  some other patches were based on. Jean-Christophe decided to remove
  the legacy at91_ide driver and fix the new-style at91-pata driver while
  keeping the cleanup patch. I almost rejected the patches for being too
  late and too big but in the end decided to accept them because they
  fix a regression.

* A patch fixing build breakage from the sysdev-to-device conversion
  colliding with other changes touches a number of mach-s3c files.

* b0654037 "ARM: orion: Fix Orion5x GPIO regression from MPP cleanup"
  is a mechanical change that unfortunately touches a lot of lines
  that should up in the diffstat.

* tag 'fixes-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits)
  ARM: at91: drop ide driver in favor of the pata one
  pata/at91: use newly introduced SMC accessors
  ARM: at91: add accessor to manage SMC
  ARM: at91:rtc/rtc-at91sam9: ioremap register bank
  ARM: at91: USB AT91 gadget registration for module
  ep93xx: fix build of vision_ep93xx.c
  ARM: OMAP2xxx: PM: fix OMAP2xxx-specific UART idle bug in v3.3
  ARM: orion: Fix USB phy for orion5x.
  ARM: orion: Fix Orion5x GPIO regression from MPP cleanup
  ARM: EXYNOS: Add cpu-offset property in gic device tree node
  ARM: EXYNOS: Bring exynos4-dt up to date
  ARM: OMAP3: cm-t35: fix section mismatch warning
  ARM: OMAP2: Fix the OMAP2 only build break seen with 2011+ ARM tool-chains
  ARM: tegra: paz00: fix wrong UART port on mini-pcie plug
  ARM: tegra: paz00: fix wrong SD1 power gpio
  i2c: tegra: Add devexit_p() for remove
  ARM: EXYNOS: Correct M-5MOLS sensor clock frequency on Universal C210 board
  ARM: EXYNOS: Correct framebuffer window size on Nuri board
  ARM: SAMSUNG: Fix missing api-change from subsys_interface change
  ARM: EXYNOS: Fix "warning: initialization from incompatible pointer type"
  ...
2012-02-18 15:40:00 -08:00
Linus Torvalds
584216b79c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
1) VETH_INFO_PEER netlink attribute needs to have it's size validated,
   from Thomas Graf.

2) 'poll' module option of bnx2x driver crashes the machine, just remove
   it.  From Michal Schmidt.

3) ks8851_mll driver reads the irq number from two places, but only
   initializes one of them, oops.  Use only one location and fix this
   problem, from Jan Weitzel.

4) Fix buffer overrun and unicast sterring bugs in mellanox mlx4 driver,
   from Eugenia Emantayev.

5) Swapped kcalloc() args in RxRPC and mlx4, from Axel Lin.

6) PHY MDIO device name regression fixes from Florian Fainelli.

7) If the wake event IRQ line is different from the netdevice one, we
   have to properly route it to the stmmac interrupt handler.  From
   Francesco Virlinzi.

8) Fix rwlock lock initialization ordering bug in mac80211, from
   Mohammed Shafi Shajakhan.

9) TCP lost_cnt can get out of sync, and in fact go negative, in certain
   circumstances.  Fix the way we specify what sequence range to operate
   on in tcp_sacktag_one() to fix this bug.  From Neal Cardwell.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits)
  net/ethernet: ks8851_mll fix irq handling
  veth: Enforce minimum size of VETH_INFO_PEER
  stmmac: update the driver version to Feb 2012 (v2)
  stmmac: move hw init in the probe (v2)
  stmmac: request_irq when use an ext wake irq line (v2)
  stmmac: do not discard frame on dribbling bit assert
  ipheth: Add iPhone 4S
  mlx4: add unicast steering entries to resource_tracker
  mlx4: fix QP tree trashing
  mlx4: fix buffer overrun
  3c59x: shorten timer period for slave devices
  netpoll: netpoll_poll_dev() should access dev->flags
  RxRPC: Fix kcalloc parameters swapped
  bnx2x: remove the 'poll' module option
  tcp: fix tcp_shifted_skb() adjustment of lost_cnt_hint for FACK
  ks8851: Fix NOHZ local_softirq_pending 08 warning
  bnx2x: fix bnx2x_storm_stats_update() on big endian
  ixp4xx-eth: fix PHY name to match MDIO bus name
  octeon: fix PHY name to match MDIO bus name
  fec: fix PHY name to match fixed MDIO bus name
  ...
2012-02-18 15:38:12 -08:00
Linus Torvalds
bff98bfcdb Fixes a bootstrapping issue for some registers when a less commonly used
method for register cache initialisation is used.  Only affects a fairly
 small proportion of users that both don't use explicit register defaults
 and do use the cache.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Fixes a bootstrapping issue for some registers when a less commonly used
method for register cache initialisation is used.  Only affects a fairly
small proportion of users that both don't use explicit register defaults
and do use the cache.

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: Fix cache defaults initialization from raw cache defaults
2012-02-18 15:37:25 -08:00
Linus Torvalds
7857b996c2 pinctrl fixes for v3.3
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Merge tag 'pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

pinctrl fixes for v3.3

* tag 'pinctrl-for-torvalds-20120216' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: restore pin naming
2012-02-18 15:27:40 -08:00
Linus Torvalds
06ca7c4376 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Here are a few more fixes for powerpc.  Some are regressions, the rest
is simple/obvious/nasty enough that I deemed it good to go now.

Here's also step one of deprecating legacy iSeries support: we are
removing it from the main defconfig.

Nobody seems to be using it anymore and the code is nasty to maintain,
(involves horrible hacks in various low level areas of the kernel) so we
plan to actually rip it out at some point.  For now let's just avoid
building it by default.  Stephen will proceed to do the actual removal
later (probably 3.4 or 3.5).

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/perf: power_pmu_start restores incorrect values, breaking frequency events
  powerpc/adb: Use set_current_state()
  powerpc: Disable interrupts early in Program Check
  powerpc: Remove legacy iSeries from ppc64_defconfig
  powerpc/fsl/pci: Fix PCIe fixup regression
  powerpc: Fix kernel log of oops/panic instruction dump
2012-02-18 15:26:37 -08:00
Linus Torvalds
7bcd5b4671 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci
One regression fix for SR-IOV on PPC and a couple of misc fixes from
Yinghai.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci:
  PCI: Fix pci cardbus removal
  PCI: set pci sriov page size before reading SRIOV BAR
  PCI: workaround hard-wired bus number V2
2012-02-18 15:26:11 -08:00
Linus Torvalds
58e44bafbb Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
3 radeon fixes, I have some exynos fixes to push later but I'll queue
them separately once I've looked them over a bit.

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/kms: fix MSI re-arm on rv370+
  drm/radeon/kms/atom: bios scratch reg handling updates
  drm/radeon/kms: drop lock in return path of radeon_fence_count_emitted.
2012-02-18 15:25:39 -08:00
Alan Stern
fea6d607e1 [SCSI] scsi_pm: Fix bug in the SCSI power management handler
This patch (as1520) fixes a bug in the SCSI layer's power management
implementation.

LUN scanning can be carried out asynchronously in do_scan_async(), and
sd uses an asynchronous thread for the time-consuming parts of disk
probing in sd_probe_async().  Currently nothing coordinates these
async threads with system sleep transitions; they can and do attempt
to continue scanning/probing SCSI devices even after the host adapter
has been suspended.  As one might expect, the outcome is not ideal.

This is what the "prepare" stage of system suspend was created for.
After the prepare callback has been called for a host, target, or
device, drivers are not allowed to register any children underneath
them.  Currently the SCSI prepare callback is not implemented; this
patch rectifies that omission.

For SCSI hosts, the prepare routine calls scsi_complete_async_scans()
to wait until async scanning is finished.  It might be slightly more
efficient to wait only until the host in question has been scanned,
but there's currently no way to do that.  Besides, during a sleep
transition we will ultimately have to wait until all the host scanning
has finished anyway.

For SCSI devices, the prepare routine calls async_synchronize_full()
to wait until sd probing is finished.  The routine does nothing for
SCSI targets, because asynchronous target scanning is done only as
part of host scanning.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: <stable@kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:54:19 -06:00
Huajun Li
267a6ad4ae [SCSI] scsi_scan: Fix 'Poison overwritten' warning caused by using freed 'shost'
In do_scan_async(), calling scsi_autopm_put_host(shost) may reference
freed shost, and cause Posison overwitten warning.
Yes, this case can happen, for example, an USB is disconnected just
when do_scan_async() thread starts to run, then scsi_host_put() called
in scsi_finish_async_scan() will lead to shost be freed(because the
refcount of shost->shost_gendev decreases to 1 after USB disconnects),
at this point, if references shost again, system will show following
warning msg.

To make scsi_autopm_put_host(shost) always reference a valid shost,
put it just before scsi_host_put() in function
scsi_finish_async_scan().

[  299.281565] =============================================================================
[  299.281634] BUG kmalloc-4096 (Tainted: G          I ): Poison overwritten
[  299.281682] -----------------------------------------------------------------------------
[  299.281684]
[  299.281752] INFO: 0xffff880056c305d0-0xffff880056c305d0. First byte
0x6a instead of 0x6b
[  299.281816] INFO: Allocated in scsi_host_alloc+0x4a/0x490 age=1688
cpu=1 pid=2004
[  299.281870] 	__slab_alloc+0x617/0x6c1
[  299.281901] 	__kmalloc+0x28c/0x2e0
[  299.281931] 	scsi_host_alloc+0x4a/0x490
[  299.281966] 	usb_stor_probe1+0x5b/0xc40 [usb_storage]
[  299.282010] 	storage_probe+0xa4/0xe0 [usb_storage]
[  299.282062] 	usb_probe_interface+0x172/0x330 [usbcore]
[  299.282105] 	driver_probe_device+0x257/0x3b0
[  299.282138] 	__driver_attach+0x103/0x110
[  299.282171] 	bus_for_each_dev+0x8e/0xe0
[  299.282201] 	driver_attach+0x26/0x30
[  299.282230] 	bus_add_driver+0x1c4/0x430
[  299.282260] 	driver_register+0xb6/0x230
[  299.282298] 	usb_register_driver+0xe5/0x270 [usbcore]
[  299.282337] 	0xffffffffa04ab03d
[  299.282364] 	do_one_initcall+0x47/0x230
[  299.282396] 	sys_init_module+0xa0f/0x1fe0
[  299.282429] INFO: Freed in scsi_host_dev_release+0x18a/0x1d0 age=85
cpu=0 pid=2008
[  299.282482] 	__slab_free+0x3c/0x2a1
[  299.282510] 	kfree+0x296/0x310
[  299.282536] 	scsi_host_dev_release+0x18a/0x1d0
[  299.282574] 	device_release+0x74/0x100
[  299.282606] 	kobject_release+0xc7/0x2a0
[  299.282637] 	kobject_put+0x54/0xa0
[  299.282668] 	put_device+0x27/0x40
[  299.282694] 	scsi_host_put+0x1d/0x30
[  299.282723] 	do_scan_async+0x1fc/0x2b0
[  299.282753] 	kthread+0xdf/0xf0
[  299.282782] 	kernel_thread_helper+0x4/0x10
[  299.282817] INFO: Slab 0xffffea00015b0c00 objects=7 used=7 fp=0x
      (null) flags=0x100000000004080
[  299.282882] INFO: Object 0xffff880056c30000 @offset=0 fp=0x          (null)
[  299.282884]
...

Signed-off-by: Huajun Li <huajun.li.lee@gmail.com>
Cc: stable@kernel.org
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:52:48 -06:00
Chad Dupuis
477e3e9ffc [SCSI] qla2xxx: Update version number to 8.03.07.13-k.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:50:20 -06:00
Giridhar Malavali
2cc97965e4 [SCSI] qla2xxx: Proper detection of firmware abort error code for ISP82xx.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:49:58 -06:00
Shyam Sundar
5a034bb3c3 [SCSI] qla2xxx: Remove resetting memory during device initialization for ISP82xx.
With IOs running and PegHalt testing the system reboots when memory reset is
performed during device initialization.

Signed-off-by: Shyam Sundar <shyam.sundar@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:49:37 -06:00
Giridhar Malavali
d33609607c [SCSI] qla2xxx: Complete mailbox command timedout to avoid initialization failures during next reset cycle.
Complete the mailbox command timed out before initiating another abort cycle
to recover so that mailbox commands issued during next reset cycle don't fail
due to pending mailbox access timeout.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:49:01 -06:00
Michael Christie
c7a9927842 [SCSI] qla2xxx: Remove check for null fcport from host reset handler.
Remove the check for a NULL fcport so that the host reset will run
unconditionally to unwedge any commands before the device is offlined and to
prevent a quick runthrough of the SCSI error handling.

Signed-off-by: Michael Christie <mchristi@redhat.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:48:29 -06:00
Andrew Vasquez
67ddda353c [SCSI] qla2xxx: Correct out of bounds read of ISP2200 mailbox registers.
ISP2200 adapters only have 24 mailbox registers so read only that many.

Reported-by: Olatunji Ruwase <oor@cs.cmu.edu>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:47:27 -06:00
Andrew Vasquez
7cb0eb1c17 [SCSI] qla2xxx: Remove errant clearing of MBX_INTERRUPT flag during CT-IOCB processing.
This can cause instability in mailbox command state machine handling.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:46:46 -06:00
Andrew Vasquez
4ba988db8d [SCSI] qla2xxx: Clear options-flags while issuing stop-firmware mbx command.
Not clearing the options flags in mbx1 could lead the firmware
into interpreting old data in mbx1 through mbx8.  This could
lead to inadvertent DMA read/write operations to stale memory.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:44:51 -06:00
Andrew Vasquez
d051a5aa1c [SCSI] qla2xxx: Add an "is reset active" helper.
Many locations within the driver would use an inconsistent set of
checks to determine ISP-reset state.  Consolidate the checks into
this inline-helper.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:43:26 -06:00
Chad Dupuis
aa651be83d [SCSI] qla2xxx: Add check for null fcport references in qla2xxx_queuecommand.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:42:10 -06:00
Arun Easi
a55aac79de [SCSI] qla2xxx: Propagate up abort failures.
Signed-off-by: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:40:20 -06:00
Dave Jiang
6d7938f46f [SCSI] isci: Fix NULL ptr dereference when no firmware is being loaded
NULL orom ptr passed in for verification which caused page fault.
We will set a default version when we don't have orom struct.

Reported-by: Dan Melnic <dan@seamicro.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-18 08:37:00 -06:00