Commit graph

134,929 commits

Author SHA1 Message Date
Arnd Bergmann
4551ae0a24 Merge branch 'v3.2-rc6' into next/drivers 2011-12-27 23:41:33 +00:00
Arnd Bergmann
31b2a86845 Merge branch 'samsung/dt' into next/dt
* samsung/dt: (27 commits)
  ARM: dts: Add intial dts file for EXYNOS4210 SoC, SMDKV310 and ORIGEN
  ARM: EXYNOS: Add Exynos4 device tree enabled board file
  rtc: rtc-s3c: Add device tree support
  input: samsung-keypad: Add device tree support
  ARM: S5PV210: Modify platform data for pl330 driver
  ARM: S5PC100: Modify platform data for pl330 driver
  ARM: S5P64x0: Modify platform data for pl330 driver
  ARM: EXYNOS: Add a alias for pdma clocks
  ARM: EXYNOS: Limit usage of pl330 device instance to non-dt build
  ARM: SAMSUNG: Add device tree support for pl330 dma engine wrappers
  DMA: PL330: Add device tree support
  ARM: EXYNOS: Modify platform data for pl330 driver
  DMA: PL330: Infer transfer direction from transfer request instead of platform data
  DMA: PL330: move filter function into driver
  serial: samsung: Fix build for non-Exynos4210 devices
  serial: samsung: add device tree support
  serial: samsung: merge probe() function from all SoC specific extensions
  serial: samsung: merge all SoC specific port reset functions
  ARM: SAMSUNG: register uart clocks to clock lookup list
  serial: samsung: remove all uses of get_clksrc and set_clksrc
  ...
2011-12-27 23:21:28 +00:00
Arnd Bergmann
9cad9a5ff6 Merge branch 'tegra/dt' into next/dt
* tegra/dt:
  arm/tegra: Seaboard: Add GPIO key device tree nodes
  arm/dt: Add ADT7461 to Seaboard
  arm/dt: tegra: Use new compatible value for DVC I2C controller
  arm/tegra: initial device tree for tegra30
  arm/tegra: convert tegra20 to GIC devicetree binding
  arm/dt: tegra: Fix SDHCI nodes to match board files
  arm/dt: tegra: Fix serial nodes to match board files
  arm/dt: tegra: Fix I2C nodes to match board files
  arm/dt: tegra: Remove /chosen node
  arm/dt: tegra: Remove /memreserve/ from device-tree files
  arm/tegra: board-dt: Enable audio-related clocks
  arm/tegra: board-dt: Fix AUXDATA typo
  arm/dt: tegra: add dts file for paz00
  arm/tegra: Add device-tree support for TrimSlice board
  arm/dt: tegra: Clean up I2S and DAS nodes
  USB: ehci-tegra: add probing through device tree
  arm/dt: add basic usb nodes to tegra device trees
  arm/tegra: fix variable formatting in makefile

Conflicts:
	arch/arm/mach-tegra/Makefile
2011-12-27 23:21:16 +00:00
Arnd Bergmann
e2c236f0a4 Merge branch 'tegra/drivers' into next/drivers
* tegra/drivers:
  i2c: tegra: Support DVC controller in device tree
  i2c: tegra: Add __devinit/exit to probe/remove
2011-12-27 23:11:25 +00:00
Sam Ravnborg
75c71848f2 of/pdt: fix section mismatch warning
Fix the following section mismatch warning - seen when building sparc32:

WARNING: vmlinux.o(.text+0x1ff9c0): Section mismatch in reference from the function kernel_tree_alloc() to the function .init.text:prom_early_alloc()
The function kernel_tree_alloc() references
the function __init prom_early_alloc().
This is often because kernel_tree_alloc lacks a __init
annotation or the annotation of prom_early_alloc is wrong.

prom_early_alloc() is annotated __init, and users of
kernel_tree_alloc() is also annotated __init.
So simply match the annoation of these to fix the warning.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2011-12-27 16:37:30 -06:00
Arnd Bergmann
9f9f265b0b Merge branch 'omap/ehci' into next/drivers
* omap/ehci:
  MFD: OMAP: USB: Runtime PM support
  ARM: OMAP: USBHOST: Replace usbhs core driver APIs by Runtime pm APIs
  ARM: OMAP: USB: device name change for the clk names of usbhs
  ARM: OMAP: USB: register hwmods of usbhs
2011-12-27 22:05:29 +00:00
Arnd Bergmann
07b98403ee Merge branch 'omap/hwmod' into next/drivers
This is needed as a dependency for omap/ehci.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-12-27 22:05:06 +00:00
Rob Herring
af71100c7a i2c-designware: add OF binding support
Add of_match_table and DT style i2c registration to designware i2c
driver.

Refactored for pci/plat split by Dirk Brandewie.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
2011-12-27 15:52:44 -06:00
Sam Ravnborg
ab17da5cb9 apbuart: fix section mismatch warning
Fix following warnings:

WARNING: drivers/tty/serial/built-in.o(.text+0x7370): Section mismatch in reference from the function grlib_apbuart_configure() to the variable .init.data:apbuart_match
The function grlib_apbuart_configure() references
the variable __initdata apbuart_match.
This is often because grlib_apbuart_configure lacks a __initdata
annotation or the annotation of apbuart_match is wrong.

+ 3 more warnings like this.

There is no guarantee that grlib_apbuart_of_driver.of_match_table
is only used at __init time - so drop the __initdata annotation.

grlib_apbuart_configure() is only used during __init so add __init
to this method too.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-27 16:33:13 -05:00
Wim Van Sebroeck
0d098587ce watchdog: iTCO_wdt.c - problems with newer hardware due to SMI clearing (part 2)
Redhat Bugzilla: Bug 727875 - TCO_EN bit is disabled by TCO driver

The previous patch breaks reset watchdog behaviour on the older hardware.
It is therefor better to make sure that the behaviour for older hardware (<=ICH5 or
6300ESB) is preserved and that the behaviour for newer hardware is changed.
We therefor use the iTCO_version to see if we need the clearing of the SMI_TCO_EN
bit in the SMI_EN register.

So the new behaviour becomes:
turn_SMI_watchdog_clear_off=0 -> Do not turn off SMI clearing watchdog.
turn_SMI_watchdog_clear_off=1 -> Turn off SMI clearing watchdog when iTCO_version=1
				 (ICHO till ICH5 + 6300ESB only)
turn_SMI_watchdog_clear_off=2 -> Turn off SMI clearing watchdog.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-12-27 20:35:59 +01:00
Joshua Kinard
c0d2b8376a net: meth: Add set_rx_mode hook to fix ICMPv6 neighbor discovery
SGI IP32 (O2)'s ethernet driver (meth) lacks a set_rx_mode function, which
prevents IPv6 from working completely because any ICMPv6 neighbor
solicitation requests aren't picked up by the driver.  So the machine can
ping out and connect to other systems, but other systems will have a very
hard time connecting to the O2.

Signed-off-by: Joshua Kinard <kumba@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-27 13:17:34 -05:00
Heiko Carstens
65cb5df51a net: calxeda xgmac ethernet driver add missing HAS_IOMEM dependency
Fix allyesconfig build on architectures without IOMEM:

drivers/net/ethernet/calxeda/xgmac.c:1800:2:
  error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration]

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-27 13:01:44 -05:00
Dong Aisheng
8af0da93da dt: reform for_each_property to for_each_property_of_node
Make this macro easier to use(do not need to pass properties, a node is
enough), also change to a more sensible name as for_each_child_of_node.

Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2011-12-27 10:57:37 -06:00
Uwe Kleine-König
7b482c8360 ARM/of: allow *machine_desc.dt_compat to be const
This allows dt_compat to point to a constant list of compatible strings.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2011-12-27 10:57:13 -06:00
Stefan Haberland
b38f27e842 [S390] dasd: fix fixpoint divide exception in define_extent
If an IO request is build on an alias device without prefix enabled
we try to calculate with zero data from the alias device. This
triggers a BUG statement with fixpoint divide exception.
This case is very unlikely and can only happen if the pathgroup is
lost with an alias device already in use.
Prevent the alias device from being used in this case.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-12-27 11:27:14 +01:00
Stefan Haberland
b206181d63 [S390] dasd: add sanity check to detect path connection error
Prevents possible data corruption by detecting cabling error.
Therefor read and compare the UID for all available channel paths.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-12-27 11:27:14 +01:00
Steffen Maier
e58b0d902f [S390] qdio: fix kernel panic for zfcp 31-bit
The queue_start_poll function pointer field in struct qdio_initialize
had to change its type and become a vector of function pointers to
support asynchronous delivery of storage blocks so rename the field to
make the type change explicit and ensure no other user of qdio tries
to use the field the old way. During setting up the qdio queues, only
dereference vector elements if the vector is actually allocated.

Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: Einar Lueck <elelueck@de.ibm.com>
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-12-27 11:27:14 +01:00
Stefan Weinhuber
1afcfd5948 [S390] dasd: fix expiration handling for recovery requests
The 'expires' value of a ccw requests defines how long the device
driver should wait for a response from the evice after the request has
been submitted to the channel subsystem. After the expiration time
(e.g. 30 seconds) the waiting request will be cancelled and started
again. This protects the DASD devices from beeing blocked by errors
that cause the answering I/O interrupt to be lost.

In case of error recovery requests, this 'expires' value used to be
set to 0, so in case of a lost interrupt, such a recovery request
would never expire and block the device. To prevent this kind of
problem, all recovery requests need to have an expires value > 0 as
well. If not specified otherwise, this should be the same expires
value as for the original request.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-12-27 11:27:13 +01:00
Holger Dengler
2389aef47e [S390] zcrypt: Fix error return codes.
Return EINVAL instead of EFAULT for invalid input parameter.

Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-12-27 11:27:13 +01:00
Holger Dengler
7fe6f0970c [S390] zcrypt: Rework length parameter checking.
Fix length checking of the expected reply and remove re-adjustment of
expected control block length.

Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-12-27 11:27:13 +01:00
Heiko Carstens
400d829153 [S390] qdio: fix qdio_allocate_aob() declaration
drivers/s390/cio/qdio_setup.c:24:32:
  warning: non-ANSI function declaration of function 'qdio_allocate_aob'

While at it also simplify the function.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-12-27 11:27:10 +01:00
Keith Packard
371de6e4e0 drm/i915: Disable RC6 on Sandybridge by default
RC6 fails again.

> I found my system freeze mostly during starting up X and KDE. Sometimes it
> works for some minutes, sometimes it freezes immediatly. When the freeze
> happens, everything is dead (even the reset button does not work, I need to
> power cycle).

> I disabled RC6, and my system runs wonderfully.

> The system is a Z68 Pro board with Sandybridge i5-2500K processor, 8
> GB of RAM and UEFI firmware.

Reported-by: Kai Krakow <hurikhan77@gmail.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-12-26 21:07:27 -08:00
Keith Packard
ebbd857e6b drm/i915: Disable semaphores by default on SNB
Semaphores still cause problems on some machines:

> From Udo Steinberg:
>
> With Linux-3.2-rc6 I'm frequently seeing GPU hangs when large amounts of
> text scroll in an xterm, such as when extracting a tar archive. Such as this
> one (note the timestamps):
>
>  I can reproduce it fairly easily with something
>  as simple as:
>
>	  while true; do dmesg; done

This patch turns them off on SNB while leaving them on for IVB.

Reported-by: Udo Steinberg <udo@hypervisor.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Eugeni Dodonov <eugeni@dodonov.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-12-26 21:07:26 -08:00
Axel Lin
e143a1ada3 mlx4: Add missing include of linux/slab.h
Include linux/slab.h to fix below build error:

  CC      drivers/net/ethernet/mellanox/mlx4/resource_tracker.o
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'mlx4_init_resource_tracker':
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:233: error: implicit declaration of function 'kzalloc'
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:234: warning: assignment makes pointer from integer without a cast
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'mlx4_free_resource_tracker':
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:264: error: implicit declaration of function 'kfree'
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_qp_tr':
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:370: warning: assignment makes pointer from integer without a cast
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_mtt_tr':
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:386: warning: assignment makes pointer from integer without a cast
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_mpt_tr':
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:402: warning: assignment makes pointer from integer without a cast
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_eq_tr':
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:417: warning: assignment makes pointer from integer without a cast
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_cq_tr':
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:431: warning: assignment makes pointer from integer without a cast
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_srq_tr':
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:446: warning: assignment makes pointer from integer without a cast
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_counter_tr':
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:461: warning: assignment makes pointer from integer without a cast
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'add_res_range':
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:521: warning: assignment makes pointer from integer without a cast
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'mac_add_to_slave':
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:1193: warning: assignment makes pointer from integer without a cast
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'add_mcg_res':
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:2521: warning: assignment makes pointer from integer without a cast
make[5]: *** [drivers/net/ethernet/mellanox/mlx4/resource_tracker.o] Error 1
make[4]: *** [drivers/net/ethernet/mellanox/mlx4] Error 2
make[3]: *** [drivers/net/ethernet/mellanox] Error 2
make[2]: *** [drivers/net/ethernet] Error 2
make[1]: *** [drivers/net] Error 2
make: *** [drivers] Error 2

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-26 15:18:36 -05:00
Mark Brown
d9cba48358 mfd: Fix annotations in da9052-core
Device initialisation should be marked __devinit and __devinitdata.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-26 15:52:23 +00:00
Mingarelli, Thomas
e67d668e14 watchdog: hpwdt: Changes to handle NX secure bit in 32bit path
This patch makes use of the set_memory_x() kernel API in order
to make necessary BIOS calls to source NMIs.

This is needed for SLES11 SP2 and the latest upstream kernel as it appears
the NX Execute Disable has grown in its control.

Signed-off by: Thomas Mingarelli <thomas.mingarelli@hp.com>
Signed-off by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable@kernel.org
2011-12-26 15:14:38 +01:00
Nick Bowler
bb558dac67 watchdog: sp805: Fix section mismatch in ID table.
The AMBA ID table is marked as __initdata, yet it is referenced by the
driver struct which is not.  This causes a (somewhat unhelpful) section
mismatch warning:

  WARNING: drivers/watchdog/sp805_wdt.o(.data+0x4c): Section mismatch in
           reference from the variable sp805_wdt_driver to the (unknown
           reference) .init.data:(unknown)

Fix this by removing the annotation.

Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-12-26 15:14:31 +01:00
Linus Walleij
452190cb05 watchdog: move coh901327 state holders
The state holders used in the PM path of the drivers report as
unused variables when compiling without CONFIG_PM so let's
move them inside CONFIG_PM.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-12-26 15:14:24 +01:00
Rafael J. Wysocki
6d10463b2f Merge branch 'pm-domains' into pm-for-linus
* pm-domains:
  PM / shmobile: Allow the A4R domain to be turned off at run time
  PM / input / touchscreen: Make st1232 use device PM QoS constraints
  PM / QoS: Introduce dev_pm_qos_add_ancestor_request()
  PM / shmobile: Remove the stay_on flag from SH7372's PM domains
  PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume
  PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode
  ARM: S3C64XX: Implement basic power domain support
  PM / shmobile: Use common always on power domain governor
  PM / Domains: Provide an always on power domain governor
  PM / Domains: Fix default system suspend/resume operations
  PM / Domains: Make it possible to assign names to generic PM domains
  PM / Domains: fix compilation failure for CONFIG_PM_GENERIC_DOMAINS unset
  PM / Domains: Automatically update overoptimistic latency information
  PM / Domains: Add default power off governor function (v4)
  PM / Domains: Add device stop governor function (v4)
  PM / Domains: Rework system suspend callback routines (v2)
  PM / Domains: Introduce "save/restore state" device callbacks
  PM / Domains: Make it possible to use per-device domain callbacks
2011-12-25 23:43:11 +01:00
Rafael J. Wysocki
0015afaa1f Merge branch 'pm-runtime' into pm-for-linus
* pm-runtime:
  PM / Runtime: Use device PM QoS constraints (v2)
2011-12-25 23:43:05 +01:00
Rafael J. Wysocki
b7ba68c4a0 Merge branch 'pm-sleep' into pm-for-linus
* pm-sleep: (51 commits)
  PM: Drop generic_subsys_pm_ops
  PM / Sleep: Remove forward-only callbacks from AMBA bus type
  PM / Sleep: Remove forward-only callbacks from platform bus type
  PM: Run the driver callback directly if the subsystem one is not there
  PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers
  PM / Sleep: Merge internal functions in generic_ops.c
  PM / Sleep: Simplify generic system suspend callbacks
  PM / Hibernate: Remove deprecated hibernation snapshot ioctls
  PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled()
  PM / Sleep: Recommend [un]lock_system_sleep() over using pm_mutex directly
  PM / Sleep: Replace mutex_[un]lock(&pm_mutex) with [un]lock_system_sleep()
  PM / Sleep: Make [un]lock_system_sleep() generic
  PM / Sleep: Use the freezer_count() functions in [un]lock_system_sleep() APIs
  PM / Freezer: Remove the "userspace only" constraint from freezer[_do_not]_count()
  PM / Hibernate: Replace unintuitive 'if' condition in kernel/power/user.c with 'else'
  Freezer / sunrpc / NFS: don't allow TASK_KILLABLE sleeps to block the freezer
  PM / Sleep: Unify diagnostic messages from device suspend/resume
  ACPI / PM: Do not save/restore NVS on Asus K54C/K54HR
  PM / Hibernate: Remove deprecated hibernation test modes
  PM / Hibernate: Thaw processes in SNAPSHOT_CREATE_IMAGE ioctl test path
  ...

Conflicts:
	kernel/kmod.c
2011-12-25 23:42:20 +01:00
Rafael J. Wysocki
8d274ab7d3 Merge branch 'pm-devfreq' into pm-for-linus
* pm-devfreq:
  PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412.
  PM / devfreq: separate error paths from successful path
2011-12-25 23:41:30 +01:00
Rafael J. Wysocki
9ee27ffbe3 PM / input / touchscreen: Make st1232 use device PM QoS constraints
Make the st1232 driver use dev_pm_qos_add_ancestor_request() to
add a device PM QoS latency constraint for the controller it
depends on, so that the controller won't go into an overly deep
low-power state when the touchscreen has to be particularly
responsive (e.g. when the user moves his or her finger on it).

This change is based on a prototype patch from Guennadi Liakhovetski.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-12-25 23:39:50 +01:00
Rafael J. Wysocki
40a5f8be2f PM / QoS: Introduce dev_pm_qos_add_ancestor_request()
Some devices, like the I2C controller on SH7372, are not
necessary for providing power to their children or forwarding
wakeup signals (and generally interrupts) from them.  They are
only needed by their children when there's some data to transfer,
so they may be suspended for the majority of time and resumed
on demand, when the children have data to send or receive.  For this
purpose, however, their power.ignore_children flags have to be set,
or the PM core wouldn't allow them to be suspended while their
children were active.

Unfortunately, in some situations it may take too much time to
resume such devices so that they can assist their children in
transferring data.  For example, if such a device belongs to a PM
domain which goes to the "power off" state when that device is
suspended, it may take too much time to restore power to the
domain in response to the request from one of the device's
children.  In that case, if the parent's resume time is critical,
the domain should stay in the "power on" state, although it still may
be desirable to power manage the parent itself (e.g. by manipulating
its clock).

In general, device PM QoS may be used to address this problem.
Namely, if the device's children added PM QoS latency constraints
for it, they would be able to prevent it from being put into an
overly deep low-power state.  However, in some cases the devices
needing to be serviced are not the immediate children of a
"children-ignoring" device, but its grandchildren or even less
direct descendants.  In those cases, the entity wanting to add a
PM QoS request for a given device's ancestor that ignores its
children will have to find it in the first place, so introduce a new
helper function that may be used to achieve that.  This function,
dev_pm_qos_add_ancestor_request(), will search for the first
ancestor of the given device whose power.ignore_children flag is
set and will add a device PM QoS latency request for that ancestor
on behalf of the caller.  The request added this way may be removed
with the help of dev_pm_qos_remove_request() in the future, like
any other device PM QoS latency request.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-12-25 23:39:41 +01:00
Rafael J. Wysocki
0f966d74cf PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume
Since the SH7372's INTCS in included into syscore suspend/resume,
which causes the chip to be accessed when PM domains have been
turned off during system suspend, the A4R domain containing the
INTCS has to stay on during system sleep, which is suboptimal
from the power consumption point of view.

For this reason, add a new INTC flag, skip_syscore_suspend, to mark
the INTCS for intc_suspend() and intc_resume(), so that they don't
touch it.  This allows the A4R domain to be turned off during
system suspend and the INTCS state is resrored during system
resume by the A4R's "power on" code.

Suggested-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Magnus Damm <damm@opensource.se>
2011-12-25 23:39:11 +01:00
Jens Axboe
f748040bb8 Merge branch 'stable/for-jens-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-3.3/drivers 2011-12-25 16:46:46 +01:00
Linus Torvalds
4962516b23 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  vmwgfx: fix incorrect VRAM size check in vmw_kms_fb_create()
  drm/radeon/kms: bail on BTC parts if MC ucode is missing
2011-12-24 13:34:44 -08:00
Heikki Krogerus
cd314fa637 Input: mpu3050 - configure the sampling method
This will improve the output of the sensor.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-12-24 01:06:19 -08:00
Heikki Krogerus
3b5187248b Input: mpu3050 - ensure we enable interrupts
This also changes the devname parameter delivered to
request_threaded_irq() from "mpu_int" to "mpu3050".

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-12-24 01:06:13 -08:00
Olof Johansson
e948981aa0 Input: mpu3050 - add of_match table for device-tree probing
Adding invn,mpu3050 as the initial id.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-12-24 01:06:06 -08:00
Linus Torvalds
4d18de9449 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] omap3isp: Fix crash caused by subdevs now having a pointer to devnodes
2011-12-23 14:59:08 -08:00
David S. Miller
abb434cb05 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	net/bluetooth/l2cap_core.c

Just two overlapping changes, one added an initialization of
a local variable, and another change added a new local variable.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-23 17:13:56 -05:00
Dan Carpenter
681f16232c usb: pegasus: cleanup a couple conditions
We recently made loopback a bool type instead of an int, so the bitwise
AND is redundent.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-23 16:51:18 -05:00
allan
f87ce5b254 drivers/net/usb/asix: fixed asix_get_wol reported wrong wol status issue
Fixed the asix_get_wol() routine reported wrong wol status issue.

Signed-off-by: Allan Chou <allan@asix.com.tw>
Tested-by: Eugene <elubarsky@gmail.com>; Allan Chou <allan@asix.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-23 16:51:18 -05:00
Krishna Gudipati
7afc5dbde0 bna: Add debugfs interface.
Change details:
	- Add debugfs support to obtain firmware trace, saved firmware trace on
	  an IOC crash, driver info and read/write to registers.

	- debugfs hierarchy:
	  bna/pci_dev:<pci_name>
	  where the pci_name corresponds to the one under /sys/bus/pci/drivers/bna

	- Following are the new debugfs entries added:
	  fwtrc: collect current firmware trace.
	  fwsave: collect last saved fw trace as a result of firmware crash.
	  regwr: write one word to chip register
	  regrd: read one or more words from chip register.
	  drvinfo: collect the driver information.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-23 16:50:58 -05:00
Krishna Gudipati
72a9730b3f bna: Added flash sub-module and ethtool eeprom entry points.
Change details:
	- The patch adds flash sub-module to the bna driver.
	- Added ethtool set_eeprom() and get_eeprom() entry points to
	  support flash partition read/write operations.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-23 16:50:58 -05:00
Giuseppe Cavallaro
6fc0d0f2e3 stmmac: fix missing module license in the main.
This patch fixes the following warning raised
when compile:

WARNING: modpost: missing MODULE_LICENSE()
in drivers/net/ethernet/stmicro/stmmac/stmmac.o

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-23 14:21:20 -05:00
Adrian Hunter
2a0ff7a602 dmaengine: intel_mid_dma: error path fix
Add missing iounmap in error path.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2011-12-23 21:50:57 +05:30
Adrian Hunter
1fded07513 dmaengine: intel_mid_dma: locking and freeing fixes
Two issues are fixed:

1. DMA descriptors are reused so when freeing lli structures
that are linked to them, the pointer must be nulled.

2. midc_scan_descriptors() must be called with the
channel lock held.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2011-12-23 21:50:57 +05:30
Shawn Guo
0ef7e206d6 mtd: gpmi-nand: move to dma_transfer_direction
This patch fixes usage of dma direction to adopt dma_transfer_direction.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2011-12-23 21:33:15 +05:30