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2012-11-20Merge commit 'efi-for-3.7-v2' into x86/urgentH. Peter Anvin
2012-11-21cpufreq: remove use of __devexitBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-21cpufreq: remove use of __devinitBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-21cpufreq: remove use of __devexit_pBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-11-21Merge tag 'pull_req_20121120' of ↵Rafael J. Wysocki
git://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq into pm-devfreq Devfreq pull request for Rafael from MyungJoo Created on 2012.11.20 based on Linux 3.7-rc5 * tag 'pull_req_20121120' of git://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq: PM / devfreq: exynos4_bus.c: Fixed an alignment of the func call args. PM / devfreq: Add sysfs node to expose available governors PM / devfreq: allow sysfs governor node to switch governor PM / devfreq: governors: add GPL module license and allow module build PM / devfreq: map devfreq drivers to governor using name PM / devfreq: register governors with devfreq framework PM / devfreq: provide hooks for governors to be registered PM / devfreq: export update_devfreq PM / devfreq: Add sysfs node for representing frequency transition information. PM / devfreq: Add sysfs node to expose available frequencies PM / devfreq: documentation cleanups for devfreq header PM / devfreq: Use devm_* functions in exynos4_bus.c
2012-11-21ACPI / platform: Initialize ACPI handles of platform devices in advanceRafael J. Wysocki
The current platform device creation and registration code in acpi_create_platform_device() is quite convoluted. This function takes an ACPI device node as an argument and eventually calls platform_device_register_resndata() to create and register a platform device object on the basis of the information contained in that code. However, it doesn't associate the new platform device with the ACPI node directly, but instead it relies on acpi_platform_notify(), called from within device_add(), to find that ACPI node again with the help of acpi_platform_find_device() and acpi_platform_match() and then attach the new platform device to it. This causes an additional ACPI namespace walk to happen and is clearly suboptimal. Use the observation that it is now possible to initialize the ACPI handle of a device before calling device_add() for it to make this code more straightforward. Namely, add a new field to struct platform_device_info allowing us to pass the ACPI handle of interest to platform_device_register_full(), which will then use it to initialize the new device's ACPI handle before registering it. This will cause acpi_platform_notify() to use the ACPI handle from the device structure directly instead of using the .find_device() routine provided by the device's bus type. In consequence, acpi_platform_bus, acpi_platform_find_device(), and acpi_platform_match() are not necessary any more, so remove them. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21ACPI / driver core: Introduce struct acpi_dev_node and related macrosRafael J. Wysocki
To avoid adding an ACPI handle pointer to struct device on architectures that don't use ACPI, or generally when CONFIG_ACPI is not set, in which cases that pointer is useless, define struct acpi_dev_node that will contain the handle pointer if CONFIG_ACPI is set and will be empty otherwise and use it to represent the ACPI device node field in struct device. In addition to that define macros for reading and setting the ACPI handle of a device that don't generate code when CONFIG_ACPI is unset. Modify the ACPI subsystem to use those macros instead of referring to the given device's ACPI handle directly. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21ACPI: Allow ACPI handles of devices to be initialized in advanceRafael J. Wysocki
Currently, the ACPI handles of devices are initialized from within device_add(), by acpi_bind_one() called from acpi_platform_notify() which first uses the .find_device() routine provided by the device's bus type to find the matching device node in the ACPI namespace. This is a source of some computational overhead and, moreover, the correctness of the result depends on the implementation of .find_device() which is known to fail occasionally for some bus types (e.g. PCI). In some cases, however, the corresponding ACPI device node is known already before calling device_add() for the given struct device object and the whole .find_device() dance in acpi_platform_notify() is then simply unnecessary. For this reason, make it possible to initialize the ACPI handles of devices before calling device_add() for them. Modify acpi_platform_notify() to call acpi_bind_one() in advance to check the device's existing ACPI handle and skip the .find_device() search if that is successful. Change acpi_bind_one() accordingly. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2012-11-20iio:imu: Add support for the ADIS16480 and similar IMUsLars-Peter Clausen
This patch adds support for the ADIS16375, ADIS16480, ADIS16485, ADIS16488 6 degree to 10 degree of freedom IMUs. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-20iio: Factor out fixed point number parsing into its own functionLars-Peter Clausen
Factor out the code for parsing fixed point numbers into its own function and make this function globally available. This allows us to reuse the code to parse fixed point numbers in individual IIO drivers. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-20iio: Add pressure channel typeLars-Peter Clausen
This patch adds support for a new IIO channel type for pressure measurements. This can for example be used for barometric pressure sensors. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-20iio:imu:adis: Add paging supportLars-Peter Clausen
Some of the newer generation devices from the ADIS16XXX series have more registers than what can be supported with the current register addressing scheme. These devices implement register paging to support a larger register range. Each page is 128 registers large and the currently active page can be selected via register 0x00 in each page. This patch implements transparent paging inside the common adis library. The register read/write interface stays the same and when a register is accessed the library automatically switches to the correct page if it is not already selected. The page number is encoded in the upper bits of the register number, e.g. register 0x5 of page 1 is 0x85. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-20iio:gyro: Add support for the ADIS16136 gyroscopeLars-Peter Clausen
This patch adds support for the ADIS16133, ADIS16135, ADIS16136 single channel gyroscopes. The main difference between them is the sensor precision. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-20x86, efi: Fix processor-specific memcpy() build errorMatt Fleming
Building for Athlon/Duron/K7 results in the following build error, arch/x86/boot/compressed/eboot.o: In function `__constant_memcpy3d': eboot.c:(.text+0x385): undefined reference to `_mmx_memcpy' arch/x86/boot/compressed/eboot.o: In function `efi_main': eboot.c:(.text+0x1a22): undefined reference to `_mmx_memcpy' because the boot stub code doesn't link with the kernel proper, and therefore doesn't have access to the 3DNow version of memcpy. So, follow the example of misc.c and #undef memcpy so that we use the version provided by misc.c. See https://bugzilla.kernel.org/show_bug.cgi?id=50391 Reported-by: Al Viro <viro@zeniv.linux.org.uk> Reported-by: Ryan Underwood <nemesis@icequake.net> Cc: H. Peter Anvin <hpa@zytor.com> Cc: stable@vger.kernel.org Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2012-11-20net: fix build failure in xilinxJeff Mahoney
Commit 71c6c837 (drivers/net: fix tasklet misuse issue) introduced a build failure in the xilinx driver. axienet_dma_err_handler isn't declared before its use in axienet_open. This patch provides the prototype before axienet_open. Cc: Xiaotian Feng <dannyfeng@tencent.com> Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-20irda: sir_dev: Fix copy/paste typoAlexander Shiyan
Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-20x86: remove dummy long from EFI stubCesar Eduardo Barros
Commit 2e064b1 (x86, efi: Fix issue of overlapping .reloc section for EFI_STUB) removed a dummy reloc added by commit 291f363 (x86, efi: EFI boot stub support), but forgot to remove the dummy long used by that reloc. Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Tested-by: Lee G Rosenbaum <lee.g.rosenbaum@intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net> Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2012-11-20ipv6: fix inet6_csk_update_pmtu() return valueEric Dumazet
In case of error, inet6_csk_update_pmtu() should consistently return NULL. Bug added in commit 35ad9b9cf7d8a (ipv6: Add helper inet6_csk_update_pmtu().) Reported-by: Lluís Batlle i Rossell <viric@viric.name> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-20ixp4xx_hss: avoid calling dma_pool_create() with NULL devXi Wang
Use &port->netdev->dev instead of NULL since dma_pool_create() doesn't allow NULL dev. Signed-off-by: Xi Wang <xi.wang@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-20ixp4xx_eth: avoid calling dma_pool_create() with NULL devXi Wang
Use &port->netdev->dev instead of NULL since dma_pool_create() doesn't allow NULL dev. Signed-off-by: Xi Wang <xi.wang@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-20iio:imu:adis: Add support for 32bit registersLars-Peter Clausen
Some of the newer generation devices from the ADIS16XXX family have 32bit wide register which spans two 16bit wide registers. This patch adds support for reading and writing a 32bit wide register. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-20ne2000: add the right platform deviceAlan Cox
Without this udev doesn't have a way to key the ne device to the platform device. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-20iio:imu:adis: Add debugfs register access supportLars-Peter Clausen
Provide a IIO debugfs register access function for the ADIS library. This function can be used by individual drivers to allow raw register access via debugfs. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-20Merge tag 'nfc-fixes-3.7-1' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-3.0 Samuel says: "This is the first pull request for 3.7 NFC fixes. We mostly have pn533 fixes here, 2 memory leaks and an early unlocking fix. Moreover, we also have an LLCP adapter linked list insertion fix." Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-20radeon: add AGPMode 1 quirk for RV250Paul Bolle
The Intel 82855PM host bridge / Mobility FireGL 9000 RV250 combination in an (outdated) ThinkPad T41 needs AGPMode 1 for suspend/resume (under KMS, that is). So add a quirk for it. (Change R250 to RV250 in comment for preceding quirk too.) Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2012-11-20drm/radeon: properly track the crtc not_enabled case evergreen_mc_stop()Alex Deucher
The save struct is not initialized previously so explicitly mark the crtcs as not used when they are not in use. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2012-11-20drm/i915: disable cloning on sdvoDaniel Vetter
After the recent pile of disable-cloning patches, e.g. commit e3b86d6941c7e5f90be05d986fce1fcb40c68d6b Author: Egbert Eich <eich@suse.de> Date: Sat Oct 13 14:30:15 2012 +0200 DRM/i915: Don't clone SDVO LVDS with analog and a bug report from Chris Wilson indicating that cloning doesn't even work for DVI-SDVO and native VGA, let's just disable cloning on sdvo encoders completely. v2: Update the comment in the code as discussed with Paulo Zanoni. Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29259 Tested-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-11-20vtime: Warn if irqs aren't disabled on system time accounting APIsFrederic Weisbecker
System time accounting APIs such as vtime_account_system() and vtime_account_idle() need to be irqsafe. Current callers include irq entry, exit and kvm, all of which have been checked against that requirement. Now it's better to grow that with an automatic check in case we have further callers or we missed something. Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
2012-11-20KVM: taking co-maintenanceGleb Natapov
Updating MAINTAINERS file. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-11-20KVM: Retire as maintainerAvi Kivity
After six and a half years of writing and maintaining KVM, it is time to move to new things. Update my MAINTAINERS entry to reflect that. Signed-off-by: Avi Kivity <avi@redhat.com>
2012-11-20mfd: arizona: Sync regcache after resetCharles Keepax
In the absence of a physical reset line the chip is reset by writing the first register, which is done after the register patch has been applied. This patch synchronises the register cache after the reset to preserve any register changes that had been applied. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20mfd: arizona: Correctly report when AIF2/AIF1 is underclockedCharles Keepax
In the interrupt handler for an underclocked event, whilst checking for the source of the interrupt, AIF3 was checked twice and AIF1 was not checked. This change correctly checks the AIF1 underclocked bit and reports the correct error messages for all cases. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20mfd: arizona: Use correct array for ARRAY_SIZE in mfd_add_devices callCharles Keepax
wm5102_devs array was used for ARRAY_SIZE whilst adding the wm5110 devices. This change corrects this to get the size from the wm5110_devs array. As both arrays are the same size no issues should have been caused by this bug. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20mfd: wm5110: Disable control interface error report for WM5110 rev BMark Brown
It can misreport. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20mfd: wm5102: Update register patch for latest evaluationMark Brown
Latest evaluation of the device has provided some revisions to the configuration. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20ARM: EXYNOS: PL330 MDMA1 fix for revision 0 of Exynos4210 SOCBartlomiej Zolnierkiewicz
Commit 8214513 ("ARM: EXYNOS: fix address for EXYNOS4 MDMA1") changed EXYNOS specific setup of PL330 DMA engine to use 'non-secure' mdma1 address instead of 'secure' one (from 0x12840000 to 0x12850000) to fix issue with some Exynos4212 SOCs. Unfortunately it brakes PL330 setup for revision 0 of Exynos4210 SOC (mdma1 device cannot be found at 'non-secure' address): [ 0.566245] dma-pl330 dma-pl330.2: PERIPH_ID 0x0, PCELL_ID 0x0 ! [ 0.566278] dma-pl330: probe of dma-pl330.2 failed with error -22 Fix it by using 'secure' mdma1 address on Exynos4210 revision 0 SOC. Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-11-20mfd: twl-core: Fix chip ID for the twl6030-pwm modulePeter Ujfalusi
The correct chip id is 1 since the PWM module is on address 0x49. With the current TWL6030_MODULE_ID1 the kernel will crash early since we have: #define TWL6030_MODULE_ID1 0x0E and static struct twl_client twl_modules[4]; Down in the stack we try to get the module by: struct twl_client *twl = &twl_modules[chip]; Which is obviously going to do nasty things. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20arm64: Force use of common clk at architecture levelDeepak Saxena
Force all platforms to use the common clk framework to ensure that we do not end up with platform-specific implementations ala ARM32. Signed-off-by: Deepak Saxena <dsaxena@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2012-11-20PM / devfreq: exynos4_bus.c: Fixed an alignment of the func call args.Sangho Yi
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>
2012-11-20PM / devfreq: Add sysfs node to expose available governorsNishanth Menon
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>
2012-11-20PM / devfreq: allow sysfs governor node to switch governorNishanth Menon
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>
2012-11-20PM / devfreq: governors: add GPL module license and allow module buildNishanth Menon
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>
2012-11-20PM / devfreq: map devfreq drivers to governor using nameNishanth Menon
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>
2012-11-20PM / devfreq: register governors with devfreq frameworkNishanth Menon
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>
2012-11-20PM / devfreq: provide hooks for governors to be registeredNishanth Menon
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>
2012-11-20md/raid5: round discard alignment up to power of 2.NeilBrown
blkdev_issue_discard currently assumes that the granularity is a power of 2. So in raid5, round the chosen number up to avoid embarrassment. Cc: Shaohua Li <shli@kernel.org> Signed-off-by: NeilBrown <neilb@suse.de>
2012-11-20PM / devfreq: export update_devfreqNishanth Menon
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>
2012-11-20PM / devfreq: Add sysfs node for representing frequency transition information.Jonghwa Lee
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>
2012-11-20PM / devfreq: Add sysfs node to expose available frequenciesNishanth Menon
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>
2012-11-20PM / devfreq: documentation cleanups for devfreq headerNishanth Menon
struct parameters need to have ':' in documentation for scripts/kernel-doc to parse appropriately. Fix the errors reported by: ./scripts/kernel-doc include/linux/devfreq.h >/dev/null 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: Randy Dunlap <rdunlap@xenotime.net> Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>