Commit graph

160739 commits

Author SHA1 Message Date
Sangho Yi
dce9dc3a24 PM / devfreq: exynos4_bus.c: Fixed an alignment of the func call args.
I fixed the following check item (via checkpatch.pl --strict option):
CHECK: Alignment should match open parenthesis

Signed-off-by: Sangho Yi <antiroot@gmail.com>
[Merge conflict resolved]
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2012-11-20 18:46:24 +09:00
Nishanth Menon
50a5b33e01 PM / devfreq: Add sysfs node to expose available governors
Now that governor list can be variable, knowing the available governors
is useful to be able to select a governor using relevant sysfs node.

Cc: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Kevin Hilman <khilman@ti.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2012-11-20 18:46:24 +09:00
Nishanth Menon
0359d1afe4 PM / devfreq: allow sysfs governor node to switch governor
This allows us to select governor runtime from the
default configuration without having to rebuild kernel
or the devfreq driver using the sysfs node:
/sys/class/devfreq/.../governor
cat of the governor will return valid governor
and an echo 'governor_name'>governor will switch
governor

Cc: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Kevin Hilman <khilman@ti.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2012-11-20 18:46:23 +09:00
Nishanth Menon
eff607fdb1 PM / devfreq: governors: add GPL module license and allow module build
Add GPL module license and remove the static build
restrictions for building governors. This allows governors now
to be loaded on a need basis and reloaded independently of kernel
build

Cc: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Kevin Hilman <khilman@ti.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2012-11-20 18:46:23 +09:00
Nishanth Menon
1b5c1be2c8 PM / devfreq: map devfreq drivers to governor using name
Allow devfreq drivers to register a preferred governor name
and when the devfreq governor loads itself at a later point
required drivers are managed appropriately, at the time of
unload of a devfreq governor, stop managing those drivers
as well.

Since the governor structures do not need to be exposed
anymore, remove the definitions and make them static

NOTE: devfreq_list_lock is now used to protect governor
start and stop - as this allows us to protect governors and
devfreq with the proper dependencies as needed.

As part of this change, change the registration of exynos
bus driver to request for ondemand using the governor name.

Cc: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Kevin Hilman <khilman@ti.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

Signed-off-by: Nishanth Menon <nm@ti.com>
[Merge conflict resolved by MyungJoo Ham]
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2012-11-20 18:46:22 +09:00
Nishanth Menon
83116e66a2 PM / devfreq: register governors with devfreq framework
With the new registration functions, governors can be now
registered with devfreq framework.

NOTE: generates 'discards qualifiers from pointer target type'
build warnings, which the next patche in this series fixes

Cc: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Kevin Hilman <khilman@ti.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2012-11-20 18:46:22 +09:00
Nishanth Menon
3aa173b8db PM / devfreq: provide hooks for governors to be registered
Add devfreq_add_governor and devfreq_remove_governor which
can be invoked by governors to register with devfreq.

This sets up the stage to dynamically switch governors and
allow governors to be dynamically loaded as well.

Cc: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Kevin Hilman <khilman@ti.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2012-11-20 18:46:12 +09:00
Nishanth Menon
2df5021fa9 PM / devfreq: export update_devfreq
Allow update_devfreq to be used by devfreq governor built
as modules

Cc: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Kevin Hilman <khilman@ti.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2012-11-20 16:06:03 +09:00
Jonghwa Lee
e552bbaf5b PM / devfreq: Add sysfs node for representing frequency transition information.
This patch adds sysfs node which can be used to get information of frequency
transition. It represents transition table which contains total number of transition of
each freqeuncy state and time spent. It is inspired CPUFREQ's status driver.

Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
[Added Documentation/ABI entry, updated kernel-doc, and resolved merge conflict]
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2012-11-20 16:05:44 +09:00
Nishanth Menon
d287de855f PM / devfreq: Add sysfs node to expose available frequencies
devfreq governors such as ondemand are controlled by a min and
max frequency, while governors like userspace governor allow us
to set a specific frequency.
However, for the same specific device, depending on the SoC, the
available frequencies can vary.

So expose the available frequencies as a snapshot over sysfs to
allow informed decisions.

This was inspired by cpufreq framework's equivalent for similar
usage sysfs node: scaling_available_frequencies.

Cc: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Kevin Hilman <khilman@ti.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2012-11-20 15:59:32 +09:00
Sachin Kamat
d7895052d9 PM / devfreq: Use devm_* functions in exynos4_bus.c
devm_* functions are device managed functions and make cleanup code
simpler and smaller.
devm_kzalloc and devm_regulator_get functions are used.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
[renamed the patch title by MyungJoo Ham]
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2012-11-20 15:59:22 +09:00
Nishanth Menon
1a1357ea17 PM / devfreq: make devfreq_class static
devfreq_class is used internally by devfreq and has no
need to be globally available.

This also fixes the following sparse warning:
drivers/devfreq/devfreq.c:30:14: warning: symbol 'devfreq_class' was not declared. Should it be static?

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-15 00:35:06 +01:00
Nishanth Menon
12e26265e6 PM / devfreq: fix sscanf handling for writable sysfs entries
sscanf returns 0 when an invalid parameter like:
echo -n "a">min_freq
is attempted. Returning back the return result(0) will
cause the command not to return back to command
prompt.

Instead, just return -EINVAL when sscanf does not
return 1.

This is done for min_freq, max_freq and polling_interval

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-15 00:35:05 +01:00
Nishanth Menon
c5b4a1c15d PM / devfreq: kernel-doc typo corrections
Parameter documentation needs a ':' for scripts/kernel-doc
to parse properly.

Minor fixes for ones warned by:
./scripts/kernel-doc -text drivers/devfreq/devfreq.c>/dev/null

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-15 00:35:05 +01:00
Rajagopal Venkat
7f98a905dc PM / devfreq: Add current freq callback in device profile
Devfreq returns governor predicted frequency as current frequency
via sysfs interface. But device may not support all frequencies
that governor predicts. So add a callback in device profile to get
current freq from driver. Also add a new sysfs node to expose
governor predicted next target frequency.

Signed-off-by: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-15 00:35:04 +01:00
Rajagopal Venkat
206c30cfeb PM / devfreq: Add suspend and resume apis
Add devfreq suspend/resume apis for devfreq users. This patch
supports suspend and resume of devfreq load monitoring, required
for devices which can idle.

Signed-off-by: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-15 00:35:04 +01:00
Rajagopal Venkat
7e6fdd4bad PM / devfreq: Core updates to support devices which can idle
Prepare devfreq core framework to support devices which
can idle. When device idleness is detected perhaps through
runtime-pm, need some mechanism to suspend devfreq load
monitoring and resume back when device is online. Present
code continues monitoring unless device is removed from
devfreq core.

This patch introduces following design changes,

 - use per device work instead of global work to monitor device
   load. This enables suspend/resume of device devfreq and
   reduces monitoring code complexity.
 - decouple delayed work based load monitoring logic from core
   by introducing helpers functions to be used by governors. This
   provides flexibility for governors either to use delayed work
   based monitoring functions or to implement their own mechanism.
 - devfreq core interacts with governors via events to perform
   specific actions. These events include start/stop devfreq.
   This sets ground for adding suspend/resume events.

The devfreq apis are not modified and are kept intact.

Signed-off-by: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-15 00:35:04 +01:00
Linus Torvalds
b251f0f399 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "Bug fixes galore, mostly in drivers as is often the case:

  1) USB gadget and cdc_eem drivers need adjustments to their frame size
     lengths in order to handle VLANs correctly.  From Ian Coolidge.

  2) TIPC and several network drivers erroneously call tasklet_disable
     before tasklet_kill, fix from Xiaotian Feng.

  3) r8169 driver needs to apply the WOL suspend quirk to more chipsets,
     fix from Cyril Brulebois.

  4) Fix multicast filters on RTL_GIGA_MAC_VER_35 r8169 chips, from
     Nathan Walp.

  5) FDB netlink dumps should use RTM_NEWNEIGH as the message type, not
     zero.  From John Fastabend.

  6) Fix smsc95xx tx checksum offload on big-endian, from Steve
     Glendinning.

  7) __inet_diag_dump() needs to repsect and report the error value
     returned from inet_diag_lock_handler() rather than ignore it.
     Otherwise if an inet diag handler is not available for a particular
     protocol, we essentially report success instead of giving an error
     indication.  Fix from Cyrill Gorcunov.

  8) When the QFQ packet scheduler sees TSO/GSO packets it does not
     handle things properly, and in fact ends up corrupting it's
     datastructures as well as mis-schedule packets.  Fix from Paolo
     Valente.

  9) Fix oopser in skb_loop_sk(), from Eric Leblond.

  10) CXGB4 passes partially uninitialized datastructures in to FW
      commands, fix from Vipul Pandya.

  11) When we send unsolicited ipv6 neighbour advertisements, we should
      send them to the link-local allnodes multicast address, as per
      RFC4861.  Fix from Hannes Frederic Sowa.

  12) There is some kind of bug in the usbnet's kevent deferral
      mechanism, but more immediately when it triggers an uncontrolled
      stream of kernel messages spam the log.  Rate limit the error log
      message triggered when this problem occurs, as sending thousands
      of error messages into the kernel log doesn't help matters at all,
      and in fact makes further diagnosis more difficult.

      From Steve Glendinning.

  13) Fix gianfar restore from hibernation, from Wang Dongsheng.

  14) The netlink message attribute sizes are wrong in the ipv6 GRE
      driver, it was using the size of ipv4 addresses instead of ipv6
      ones :-) Fix from Nicolas Dichtel."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  gre6: fix rtnl dump messages
  gianfar: ethernet vanishes after restoring from hibernation
  usbnet: ratelimit kevent may have been dropped warnings
  ipv6: send unsolicited neighbour advertisements to all-nodes
  net: usb: cdc_eem: Fix rx skb allocation for 802.1Q VLANs
  usb: gadget: g_ether: fix frame size check for 802.1Q
  cxgb4: Fix initialization of SGE_CONTROL register
  isdn: Make CONFIG_ISDN depend on CONFIG_NETDEVICES
  cxgb4: Initialize data structures before using.
  af-packet: fix oops when socket is not present
  pkt_sched: enable QFQ to support TSO/GSO
  net: inet_diag -- Return error code if protocol handler is missed
  net: bnx2x: Fix typo in bnx2x driver
  smsc95xx: fix tx checksum offload for big endian
  rtnetlink: Use nlmsg type RTM_NEWNEIGH from dflt fdb dump
  ptp: update adjfreq callback description
  r8169: allow multicast packets on sub-8168f chipset.
  r8169: Fix WoL on RTL8168d/8111d.
  drivers/net: use tasklet_kill in device remove/close process
  tipc: do not use tasklet_disable before tasklet_kill
2012-11-10 22:03:49 +01:00
Linus Torvalds
2b1768f39a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:
 "Several build/bug fixes for sparc, including:

  1) Configuring a mix of static vs.  modular sparc64 crypto modules
     didn't work, remove an ill-conceived attempt to only have to build
     the device match table for these drivers once to fix the problem.

     Reported by Meelis Roos.

  2) Make the montgomery multiple/square and mpmul instructions actually
     usable in 32-bit tasks.  Essentially this involves providing 32-bit
     userspace with a way to use a 64-bit stack when it needs to.

  3) Our sparc64 atomic backoffs don't yield cpu strands properly on
     Niagara chips.  Use pause instruction when available to achieve
     this, otherwise use a benign instruction we know blocks the strand
     for some time.

  4) Wire up kcmp

  5) Fix the build of various drivers by removing the unnecessary
     blocking of OF_GPIO when SPARC.

  6) Fix unintended regression wherein of_address_to_resource stopped
     being provided.  Fix from Andreas Larsson.

  7) Fix NULL dereference in leon_handle_ext_irq(), also from Andreas
     Larsson."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Fix build with mix of modular vs. non-modular crypto drivers.
  sparc: Support atomic64_dec_if_positive properly.
  of/address: sparc: Declare of_address_to_resource() as an extern function for sparc again
  sparc32, leon: Check for existent irq_map entry in leon_handle_ext_irq
  sparc: Add sparc support for platform_get_irq()
  sparc: Allow OF_GPIO on sparc.
  qlogicpti: Fix build warning.
  sparc: Wire up sys_kcmp.
  sparc64: Improvde documentation and readability of atomic backoff code.
  sparc64: Use pause instruction when available.
  sparc64: Fix cpu strand yielding.
  sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads.
2012-11-10 21:58:34 +01:00
Linus Torvalds
0020dd0b8c Bug-fixes:
* Fix compile issues on ARM.
  * Fix hypercall fallback code for old hypervisors.
  * Print out which HVM parameter failed if it fails.
  * Fix idle notifier call after irq_enter.
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Merge tag 'stable/for-linus-3.7-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull Xen fixes from Konrad Rzeszutek Wilk:
 "There are three ARM compile fixes (we forgot to export certain
  functions and if the drivers are built as an module - we go belly-up).

  There is also an mismatch of irq_enter() / exit_idle() calls sequence
  which were fixed some time ago in other piece of codes, but failed to
  appear in the Xen code.

  Lastly a fix for to help in the field with troubleshooting in case we
  cannot get the appropriate parameter and also fallback code when
  working with very old hypervisors."

Bug-fixes:
 - Fix compile issues on ARM.
 - Fix hypercall fallback code for old hypervisors.
 - Print out which HVM parameter failed if it fails.
 - Fix idle notifier call after irq_enter.

* tag 'stable/for-linus-3.7-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/arm: Fix compile errors when drivers are compiled as modules (export more).
  xen/arm: Fix compile errors when drivers are compiled as modules.
  xen/generic: Disable fallback build on ARM.
  xen/events: fix RCU warning, or Call idle notifier after irq_enter()
  xen/hvm: If we fail to fetch an HVM parameter print out which flag it is.
  xen/hypercall: fix hypercall fallback code for very old hypervisors
2012-11-10 06:56:21 +01:00
Andreas Larsson
5cf8f7db82 sparc: Add sparc support for platform_get_irq()
This adds sparc support for platform_get_irq that in the normal case use
platform_get_resource() to get an irq. This standard approach fails for sparc as
there are no resources of type IORESOURCE_IRQ for irqs for sparc.

Cross platform drivers can then use this standard platform function and work on
sparc instead of having to have a special case for sparc.

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-09 16:30:49 -08:00
Wang Dongsheng
103cdd1d59 gianfar: ethernet vanishes after restoring from hibernation
If a gianfar ethernet device is down prior to hibernating a
system, it will no longer be present upon system restore.

For example:

	~# ifconfig eth0 down
	~# echo disk > /sys/power/state

	  <trigger a restore from hibernation>

	~# ifconfig eth0 up
	SIOCSIFFLAGS: No such device

This happens because the restore function bails out early upon
finding devices that were not up at hibernation.  In doing so,
it never gets to the netif_device_attach call at the end of
the restore function.  Adding the netif_device_attach as done
here also makes the gfar_restore code consistent with what is
done in the gfar_resume code.

Cc: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-09 17:08:36 -05:00
Steve Glendinning
9532021da6 usbnet: ratelimit kevent may have been dropped warnings
when something goes wrong, a flood of these messages can be
generated by usbnet (thousands per second).  This doesn't
generally *help* the condition so this patch ratelimits the
rate of their generation.

There's an underlying problem in usbnet's kevent deferral
mechanism which needs fixing, specifically that events *can*
get dropped and not handled.  This patch doesn't address this,
but just mitigates fallout caused by the current implemention.

Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-09 16:59:32 -05:00
Linus Torvalds
a1c2d60889 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes (again) from Dave Airlie:
 "dropped the ball on a vmware patch, so two more fixes for vmwgfx are
  here, one for hibernate issue, one for a BUG trigger."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/vmwgfx: Fix a case where the code would BUG when trying to pin GMR memory
  drm/vmwgfx: Fix hibernation device reset
2012-11-09 21:35:51 +01:00
Linus Torvalds
63d4ec8731 PCI updates for v3.7:
Power management
       PCI/PM: Fix proc config reg access for D3cold and bridge suspending
       PCI/PM: Resume device before shutdown
       PCI/PM: Fix deadlock when unbinding device if parent in D3cold
   Hotplug
       PCI/portdrv: Don't create hotplug slots unless port supports hotplug
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Merge tag '3.7-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "Power management:
    - PCI/PM: Fix proc config reg access for D3cold and bridge
      suspending
    - PCI/PM: Resume device before shutdown
    - PCI/PM: Fix deadlock when unbinding device if parent in D3cold
  Hotplug:
    -  PCI/portdrv: Don't create hotplug slots unless port supports
       hotplug"

* tag '3.7-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI/portdrv: Don't create hotplug slots unless port supports hotplug
  PCI/PM: Fix proc config reg access for D3cold and bridge suspending
  PCI/PM: Resume device before shutdown
  PCI/PM: Fix deadlock when unbinding device if parent in D3cold
2012-11-09 21:33:53 +01:00
Linus Torvalds
a4275153cc MMC fixes for 3.7-rc5:
- sdhci: fix a NULL dereference at resume-time, seen on OLPC XO-4
  - sdhci: fix against 3.7-rc1 for UHS modes without a vqmmc regulator
  - sdhci-of-esdhc: disable CMD23 on boards where it's broken
  - sdhci-s3c: fix against 3.7-rc1 for card detection with runtime PM
  - dw_mmc, omap_hsmmc: fix potential NULL derefs, compiler warnings
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Merge tag 'mmc-fixes-for-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC fixes from Chris Ball:
 - sdhci: fix a NULL dereference at resume-time, seen on OLPC XO-4
 - sdhci: fix against 3.7-rc1 for UHS modes without a vqmmc regulator
 - sdhci-of-esdhc: disable CMD23 on boards where it's broken
 - sdhci-s3c: fix against 3.7-rc1 for card detection with runtime PM
 - dw_mmc, omap_hsmmc: fix potential NULL derefs, compiler warnings

* tag 'mmc-fixes-for-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
  mmc: sdhci-s3c: fix the card detection in runtime-pm
  mmc: sdhci-s3c: use clk_prepare_enable and clk_disable_unprepare
  mmc: dw_mmc: constify dw_mci_idmac_ops in exynos back-end
  mmc: dw_mmc: fix modular build for exynos back-end
  mmc: sdhci: fix NULL dereference in sdhci_request() tuning
  mmc: sdhci: fix IS_ERR() checking of regulator_get()
  mmc: fix sdhci-dove probe/removal
  mmc: sh_mmcif: fix use after free
  mmc: sdhci-pci: fix 'Invalid iomem size' error message condition
  mmc: mxcmmc: Fix MODULE_ALIAS
  mmc: omap_hsmmc: fix NULL pointer dereference for dt boot
  mmc: omap_hsmmc: fix host reference after mmc_free_host
  mmc: dw_mmc: fix multiple drv_data NULL dereferences
  mmc: dw_mmc: enable controller interrupt before calling mmc_start_host
  mmc: sdhci-of-esdhc: disable CMD23 for some Freescale SoCs
  mmc: dw_mmc: remove _dev_info compile warning
  mmc: dw_mmc: convert the variable type of irq
2012-11-09 21:32:33 +01:00
Thomas Hellstrom
afcc87aa6a drm/vmwgfx: Fix a case where the code would BUG when trying to pin GMR memory
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Dmitry Torokhov <dtor@vmware.com>
Cc: stable@vger.kernel.org
Cc: linux-graphics-maintainer@vmware.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-11-09 20:49:06 +10:00
Thomas Hellstrom
95e8f6a219 drm/vmwgfx: Fix hibernation device reset
The device would not reset properly when resuming from hibernation.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Dmitry Torokhov <dtor@vmware.com>
Cc: stable@vger.kernel.org
Cc: linux-graphics-maintainer@vmware.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-11-09 20:49:02 +10:00
Linus Torvalds
a186d25de3 Some pinctrl fixes for the v3.7 series:
- A set of SPEAr pinctrl fixes that recently arrived
 - A fixup for the Samsung/Exynos Kconfig deps
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Merge tag 'pinctrl-for-v3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl fixes from Linus Walleij:

 - A set of SPEAr pinctrl fixes that recently arrived

 - A fixup for the Samsung/Exynos Kconfig deps

* tag 'pinctrl-for-v3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: samsung and exynos need to depend on OF && GPIOLIB
  pinctrl: SPEAr1340: Add clcd sleep mode pin configuration
  pinctrl: SPEAr1340: Make DDR reset & clock pads as gpio
  pinctrl: SPEAr1310: add register entries for enabling pad direction
  pinctrl: SPEAr1310: Separate out pci pins from pcie_sata pin group
  pinctrl: SPEAr1310: Fix value of PERIP_CFG reigster and MCIF_SEL_SHIFT
  pinctrl: SPEAr1310: fix clcd high resolution pin group name
  pinctrl: SPEAr320: Correct pad mux entries for rmii/smii
  pinctrl: SPEAr3xx: correct register space to configure pwm
  pinctrl: SPEAr: Don't update all non muxreg bits on pinctrl_disable
2012-11-09 06:59:04 +01:00
Linus Torvalds
4ad48bb72c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
 "A couple of bug fixes.  I keep the fingers crossed that we now got
  transparent huge pages ready for prime time."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/cio: fix length calculation in idset.c
  s390/sclp: fix addressing mode clobber
  s390: Move css limits from drivers/s390/cio/ to include/asm/.
  s390/thp: respect page protection in pmd_none() and pmd_present()
  s390/mm: use pmd_large() instead of pmd_huge()
  s390/cio: suppress 2nd path verification during resume
2012-11-09 06:57:56 +01:00
Linus Torvalds
976bacef40 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fix from Jiri Kosina:
 "This reverts a patch that causes regression in binding between HID
  devices and drivers during device unplug/replug cycle."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: hidraw: put old deallocation mechanism in place
2012-11-09 06:56:23 +01:00
Linus Torvalds
c0cba03baa Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Just radeon and nouveau, mostly regressions fixers, and a couple of
  radeon register checker fixes."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/nouveau: fix acpi edid retrieval
  drm/nvc0/disp: fix regression in vblank semaphore release
  drm/nv40/mpeg: fix context handling
  drm/nv40/graph: fix typo in type names
  drm/nv41/vm: fix typo in type name
  drm/radeon/si: add some missing regs to the VM reg checker
  drm/radeon/cayman: add some missing regs to the VM reg checker
  drm/radeon/dce3: switch back to old pll allocation order for discrete
2012-11-09 06:49:24 +01:00
Linus Torvalds
cdfe1565c0 YA module signing build tweak, and two cc'd to stable.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull virtio and module fixes from Rusty Russell:
 "YA module signing build tweak, and two cc'd to stable."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  virtio: Don't access index after unregister.
  modules: don't break modules_install on external modules with no key.
  module: fix out-by-one error in kallsyms
2012-11-09 06:47:55 +01:00
Dave Airlie
4a48ed2334 Merge branch 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes
just some misc regression fixes and typo fixes.

* 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
  drm/nouveau: fix acpi edid retrieval
  drm/nvc0/disp: fix regression in vblank semaphore release
  drm/nv40/mpeg: fix context handling
  drm/nv40/graph: fix typo in type names
  drm/nv41/vm: fix typo in type name
2012-11-09 14:57:02 +10:00
Cornelia Huck
237242bddc virtio: Don't access index after unregister.
Virtio wants to release used indices after the corresponding
virtio device has been unregistered. However, virtio does not
hold an extra reference, giving up its last reference with
device_unregister(), making accessing dev->index afterwards
invalid.

I actually saw problems when testing my (not-yet-merged)
virtio-ccw code:

- device_add virtio-net,id=xxx
-> creates device virtio<n> with n>0

- device_del xxx
-> deletes virtio<n>, but calls ida_simple_remove with an
   index of 0

- device_add virtio-net,id=xxx
-> tries to add virtio0, which is still in use...

So let's save the index we want to release before calling
device_unregister().

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Cc: stable@kernel.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-11-09 14:54:24 +10:30
Maarten Lankhorst
df285500b2 drm/nouveau: fix acpi edid retrieval
Commit c0077061e7 accidentally inverted the logic for nouveau_acpi_edid,
causing it to only show a connector as connected when the edid could not
be retrieved with acpi.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-11-09 13:43:08 +10:00
Kelly Doran
11d92561c8 drm/nvc0/disp: fix regression in vblank semaphore release
Signed-off-by: Kelly Doran <kel.p.doran@gmail.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-11-09 13:43:05 +10:00
Marcin Slusarz
7707b701eb drm/nv40/mpeg: fix context handling
It slipped in thanks to typeless API.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-11-09 13:43:01 +10:00
Marcin Slusarz
a4dd4ec250 drm/nv40/graph: fix typo in type names
nv04_graph_priv / nv04_graph_chan are not defined in this context...

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-11-09 13:42:56 +10:00
Marcin Slusarz
479dd56705 drm/nv41/vm: fix typo in type name
It's a miracle it compiles at all - nv04_vm_priv does not exist
anywhere in the tree.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-11-09 13:42:53 +10:00
Alex Deucher
f418b88aad drm/radeon/si: add some missing regs to the VM reg checker
This register is needed for streamout to work properly.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
2012-11-08 10:24:19 -05:00
Alex Deucher
860fe2f05f drm/radeon/cayman: add some missing regs to the VM reg checker
These regs were being wronly rejected leading to rendering
issues.

fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=56876

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
2012-11-08 10:24:07 -05:00
Ian Coolidge
a66fe1653f net: usb: cdc_eem: Fix rx skb allocation for 802.1Q VLANs
cdc_eem frames might need to contain 802.1Q VLAN Ethernet frames.
URB/skb sizing from usbnet will default to the hard_mtu,
so account for the VLAN header by expanding that via hard_header_len

Signed-off-by: Ian Coolidge <iancoolidge@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-07 21:12:26 -05:00
Ian Coolidge
4fe5f079b4 usb: gadget: g_ether: fix frame size check for 802.1Q
Checking skb->len against ETH_FRAME_LEN assumes a 1514
ethernet frame size. With an 802.1Q VLAN header, ethernet
frame length can now be 1518. Validate frame length against that.

Signed-off-by: Ian Coolidge <iancoolidge@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-07 21:12:26 -05:00
Vipul Pandya
0dad9e94bd cxgb4: Fix initialization of SGE_CONTROL register
INGPADBOUNDARY_MASK is already shifted. No need to shift it again. On reloading
a driver it was resulting in a bad SGE FL MTU sizes [1536, 9088] error. This
only causes an issue on systems that have L1 cache size of 32B, 128B, 512B,
2048B or 4096B.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-07 19:02:19 -05:00
Lee Jones
7fd78edc47 isdn: Make CONFIG_ISDN depend on CONFIG_NETDEVICES
It doesn't make much sense to enable ISDN services if you don't
intend to connect to a network. Therefore insisting that ISDN
depends on NETDEVICES seems logical. We can then remove any
guards mentioning NETDEVICES inside all subordinate drivers.

This also has the nice side-effect of fixing the warning below
when ISDN_I4L && !CONFIG_NETDEVICES at compile time.

This patch fixes:
drivers/isdn/i4l/isdn_common.c: In function ‘isdn_ioctl’:
drivers/isdn/i4l/isdn_common.c:1278:8: warning: unused variable ‘s’ [-Wunused-variable]

Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-07 18:59:26 -05:00
Vipul Pandya
0062b15c10 cxgb4: Initialize data structures before using.
We should not assume reserve fields to be don't cares as fields may change.
Clearing data structures before using.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-07 15:43:26 -05:00
Seungwon Jeon
0aa55c2367 mmc: sdhci-s3c: fix the card detection in runtime-pm
If host clock is disabled, host cannot detect a card in case of using
CD internal for detection.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-11-07 15:40:52 -05:00
Thomas Abraham
0f310a057f mmc: sdhci-s3c: use clk_prepare_enable and clk_disable_unprepare
Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare
calls as required by common clock framework.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-11-07 15:02:56 -05:00
Arnd Bergmann
8e2b36ea6e mmc: dw_mmc: constify dw_mci_idmac_ops in exynos back-end
The of_device_id match data is now marked as const and
must not be modified. This changes the dw_mmc to mark
all pointers passing the dw_mci_drv_data or dw_mci_dma_ops
structures as const, and also marks the static definitions
as const.

drivers/mmc/host/dw_mmc-exynos.c: In function 'dw_mci_exynos_probe':
drivers/mmc/host/dw_mmc-exynos.c:234:11: warning: assignment discards 'const' qualifier from pointer target type [enabled by default]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-11-07 15:02:55 -05:00