linux-toradex.git/drivers/misc, branch v2.6.36.4

sgi-xpc: XPC fails to discover partitions with all nasids above 128

2010-12-09T21:32:36+00:00

commit c22c7aeff69796f46ae0fcec141538e28f50b24e upstream.

UV hardware defines 256 memory protection regions versus the baseline 64
with increasing size for the SN2 ia64.  This was overlooked when XPC was
modified to accomodate both UV and SN2.

Without this patch, a user could reconfigure their existing system and
suddenly disable cross-partition communications with no indication of what
has gone wrong.  It also prevents larger configurations from using
cross-partition communication.

Signed-off-by: Robin Holt 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

drivers/misc/ad525x_dpot.c: fix typo in spi write16 and write24 transfer counts

2010-12-09T21:32:36+00:00

commit 1f9fa5216eacf4fdf9d3e4ab57feb8b642f0e78b upstream.

This is a bug fix.  Some SPI connected devices using 16/24 bit accesses,
previously failed, now work.

This typo slipped in after testing, during some restructuring.

Signed-off-by: Michael Hennerich 
Cc: Mike Frysinger 
Cc: Chris Verges 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

sgi-xp: incoming XPC channel messages can come in after the channel's partition structures have been torn down

2010-11-22T19:03:18+00:00

commit 09358972bff5ce99de496bbba97c85d417b3c054 upstream.

Under some workloads, some channel messages have been observed being
delayed on the sending side past the point where the receiving side has
been able to tear down its partition structures.

This condition is already detected in xpc_handle_activate_IRQ_uv(), but
that information is not given to xpc_handle_activate_mq_msg_uv().  As a
result, xpc_handle_activate_mq_msg_uv() assumes the structures still exist
and references them, causing a NULL-pointer deref.

Signed-off-by: Robin Holt 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

i2c: Remove obsolete cleanup for clientdata

2010-09-30T12:14:22+00:00

A few new i2c-drivers came into the kernel which clear the clientdata-pointer
on exit. This is obsolete meanwhile, so fix it and hope the word will spread.

Signed-off-by: Wolfram Sang 
Acked-by: Mark Brown 
Signed-off-by: Jean Delvare

vmware balloon: rename module

2010-09-23T00:22:38+00:00

In an effort to minimize customer confusion we want to unify naming
convention for VMware-provided kernel modules.  This change renames the
balloon driver from vmware_ballon to vmw_balloon.

We expect to follow this naming convention (vmw_) for all
modules that are part of mainline kernel and/or being distributed by
VMware, with the sole exception of vmxnet3 driver (since the name of
mainline driver happens to match with the name used in VMware Tools).

Signed-off-by: Dmitry Torokhov 
Acked-by: Bhavesh Davda 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge branch 'params' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus

2010-08-12T17:01:59+00:00

* 'params' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: (22 commits)
  param: don't deref arg in __same_type() checks
  param: update drivers/acpi/debug.c to new scheme
  param: use module_param in drivers/message/fusion/mptbase.c
  ide: use module_param_named rather than module_param_call
  param: update drivers/char/ipmi/ipmi_watchdog.c to new scheme
  param: lock if_sdio's lbs_helper_name and lbs_fw_name against sysfs changes.
  param: lock myri10ge_fw_name against sysfs changes.
  param: simple locking for sysfs-writable charp parameters
  param: remove unnecessary writable charp
  param: add kerneldoc to moduleparam.h
  param: locking for kernel parameters
  param: make param sections const.
  param: use free hook for charp (fix leak of charp parameters)
  param: add a free hook to kernel_param_ops.
  param: silence .init.text references from param ops
  Add param ops struct for hvc_iucv driver.
  nfs: update for module_param_named API change
  AppArmor: update for module_param_named API change
  param: use ops in struct kernel_param, rather than get and set fns directly
  param: move the EXPORT_SYMBOL to after the definitions.
  ...

cs5535-mfgpt: reuse timers that have never been set up

2010-08-11T15:59:20+00:00

The MFGPT hardware may be set up only once, therefore
cs5535_mfgpt_free_timer() didn't re-set the timer's "avail" bit.  However
if a timer is freed before it has actually been in use then it may be made
available again.

Signed-off-by: Jens Rottmann 
Acked-by: Andres Salomon 
Cc: Thomas Gleixner 
Cc: Jordan Crouse 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

param: remove unnecessary writable charp

2010-08-11T13:34:27+00:00

sysfs-writable charp arguments need to be locked against modification
(since the old ones may be kfreed underneath us).  String arguments
are much simpler, so use them for small strings (eg. IFNAMSIZ).

lkdtm only uses the parameters at module initialization time, so there's
not much point making them writable.

Signed-off-by: Rusty Russell 
Reviewed-by: Takashi Iwai 
Tested-by: Phil Carmody 
Cc: Andrew Morton 
Cc: M. Mohan Kumar 
Cc: Greg Kroah-Hartman 
Cc: Bartlomiej Zolnierkiewicz 
Cc: Jeff Mahoney 
Cc: Julia Lawall 
Cc: devel@driverdev.osuosl.org

hmc6352: add driver for the HMC6352 compass

2010-08-10T03:45:10+00:00

This driver will report the heading values in degrees to the sysfs
interface.  The values returned are headings .  e.g.  245.6

Alan: Cleanups requested now all folded in and a sysfs description to keep
Andrew happy. The sysfs description now resembles hwmon.

Signed-off-by: Kalhan Trisal 
Reviewed-by: Jean Delvare 
Signed-off-by: Alan Cox 
Cc: Jonathan Cameron 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers/misc: support for the pressure sensor BMP085 from Bosch Sensortec

2010-08-10T03:45:05+00:00

This driver adds support for the BMP085 digital pressure sensor from Bosch
Sensortec.  It exposes a sysfs api to userspace where pressure and
temperature measurement results can be read from the pressure0_input and
temp0_input file.  The chip is able to calculate the average of up to
eight samples to increase the accuracy.  This feature can be controlled by
writing to the oversampling file.

The BMP085 digital pressure sensor can measure ambient air pressure and
temperature.  Both values can be obtained from sysfs files.  The pressure
is measured by reading from pressure0_input.  Valid values range from
30000 to 110000 pascal with a resolution of 1 pascal (=0.01 millibar).

temp0_input holds the current temperature in degree celsius, multiplied by
10.  This results in a resolution of a tenth degree celsius.  Values range
from -400 to 850.

To increase the accuracy, this chip can calculate the average of 1, 2, 4
or 8 samples.  This behavior is controlled through the oversampling sysfs
file.  Two to the power of the value written to that file specifies how
many samples will be used.  Valid values: 0..3.

[akpm@linux-foundation.org: fix typo]
[shubhrajyoti@ti.com: optimize the wait time for the pressure sensor, definition of long is arch dependent so make it u32]
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Christoph Mair 
Signed-off-by: Shubhrajyoti D 
Acked-by: Jonathan Cameron 
Cc: Stefan Schmidt 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds