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2013-04-18xen-blkback: implement LRU mechanism for persistent grantsRoger Pau Monne
This mechanism allows blkback to change the number of grants persistently mapped at run time. The algorithm uses a simple LRU mechanism that removes (if needed) the persistent grants that have not been used since the last LRU run, or if all grants have been used it removes the first grants in the list (that are not in use). The algorithm allows the user to change the maximum number of persistent grants, by changing max_persistent_grants in sysfs. Since we are storing the persistent grants used inside the request struct (to be able to mark them as "unused" when unmapping), we no longer need the bitmap (unmap_seg). Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: xen-devel@lists.xen.org Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-04-18xen-blkback: use balloon pages for all mappingsRoger Pau Monne
Using balloon pages for all granted pages allows us to simplify the logic in blkback, especially in the xen_blkbk_map function, since now we can decide if we want to map a grant persistently or not after we have actually mapped it. This could not be done before because persistent grants used ballooned pages, whereas non-persistent grants used pages from the kernel. This patch also introduces several changes, the first one is that the list of free pages is no longer global, now each blkback instance has it's own list of free pages that can be used to map grants. Also, a run time parameter (max_buffer_pages) has been added in order to tune the maximum number of free pages each blkback instance will keep in it's buffer. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Cc: xen-devel@lists.xen.org Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-04-17Merge tag 'davinci-for-v3.10/board-2-v2' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/boards From Sekhar Nori: v3.10 board updates for DaVinci This set of patches enables remoteproc support on DA850 EVM and fixes some sparse warnings for the same board. * tag 'davinci-for-v3.10/board-2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: ARM: davinci: da850 evm: fix const qualifier placement ARM: davinci: da850 board: add remoteproc support ARM: davinci: ensure global variables are declared ARM: davinci: sram.c: fix incorrect type in assignment ARM: davinci: da8xx dt: make file local symbols static ARM: davinci: da8xx: add remoteproc support ARM: davinci: remove test for undefined Kconfig macro ARM: davinci: mmc: derive version information from device name ARM: davinci: da850: add ECAP & EHRPWM clock nodes ARM: davinci: clk framework support for enable/disable functionality
2013-04-17Merge tag 'davinci-for-v3.10/soc-2-v2' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/soc From Sekhar Nori: v3.10 SoC updates for DaVinci This set of patches add support for remoteproc used to control the DSP and also fix sparse errors existing for quite some time. * tag 'davinci-for-v3.10/soc-2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: ARM: davinci: ensure global variables are declared ARM: davinci: sram.c: fix incorrect type in assignment ARM: davinci: da8xx dt: make file local symbols static ARM: davinci: da8xx: add remoteproc support Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-17Merge tag 'davinci-for-v3.10/dt-2-v2' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/dt2 From Sekhar Nori: v3.10 DT updates for DaVinci This set of patches adds support for PWMs and SPI controller present on DA850 and for SPI flash present on DA850 EVM. * tag 'davinci-for-v3.10/dt-2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: ARM: davinci: da850-evm: add SPI flash support ARM: davinci: da850: override SPI DT node device name ARM: davinci: da850: add SPI1 DT node spi/davinci: add DT binding documentation spi/davinci: no wildcards in DT compatible property ARM: davinci: da850: add EHRPWM & ECAP DT node ARM: davinci: da850: override mmc DT node device name ARM: davinci: da850: add mmc DT entries mmc: davinci_mmc: add DT support ARM: davinci: da850: add tps6507x regulator DT data ARM: regulator: add tps6507x device tree data ARM: davinci: remove test for undefined Kconfig macro ARM: davinci: mmc: derive version information from device name ARM: davinci: da850: add ECAP & EHRPWM clock nodes ARM: davinci: clk framework support for enable/disable functionality Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-18powerpc/ptrace: Add DAWR debug feature info for userspaceMichael Neuling
This adds new debug feature information so that the DAWR can be identified by userspace tools like GDB. Unfortunately the DAWR doesn't sit nicely into the current description that ptrace provides to userspace via struct ppc_debug_info. It doesn't allow for specifying that only some ranges are possible or even the end alignment constraints (DAWR only allows 512 byte wide ranges which can't cross a 512 byte boundary). After talking to Edjunior Machado (GDB ppc developer), it was decided this was the best approach. Just mark it as debug feature DAWR and tools like GDB can internally decide the constraints. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
2013-04-18powerpc: remove PReP platformPaul Bolle
PPC_PREP is marked as BROKEN since v2.6.15. Remove all PReP specific code now. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
2013-04-17x86, kdump: Change crashkernel_high/low= to crashkernel=,high/lowYinghai Lu
Per hpa, use crashkernel=X,high crashkernel=Y,low instead of crashkernel_hign=X crashkernel_low=Y. As that could be extensible. -v2: according to Vivek, change delimiter to ; -v3: let hign and low only handle simple form and it conforms to description in kernel-parameters.txt still keep crashkernel=X override any crashkernel=X,high crashkernel=Y,low -v4: update get_last_crashkernel returning and add more strict checking in parse_crashkernel_simple() found by HATAYAMA. -v5: Change delimiter back to , according to HPA. also separate parse_suffix from parse_simper according to vivek. so we can avoid @pos in that path. -v6: Tight the checking about crashkernel=X,highblahblah,high found by HTYAYAMA. Cc: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Link: http://lkml.kernel.org/r/1366089828-19692-5-git-send-email-yinghai@kernel.org Acked-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-04-17x86, kdump: Retore crashkernel= to allocate under 896MYinghai Lu
Vivek found old kexec-tools does not work new kernel anymore. So change back crashkernel= back to old behavoir, and add crashkernel_high= to let user decide if buffer could be above 4G, and also new kexec-tools will be needed. -v2: let crashkernel=X override crashkernel_high= update description about _high will be ignored by crashkernel=X -v3: update description about kernel-parameters.txt according to Vivek. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Link: http://lkml.kernel.org/r/1366089828-19692-4-git-send-email-yinghai@kernel.org Acked-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-04-17x86, kdump: Set crashkernel_low automaticallyYinghai Lu
Chao said that kdump does does work well on his system on 3.8 without extra parameter, even iommu does not work with kdump. And now have to append crashkernel_low=Y in first kernel to make kdump work. We have now modified crashkernel=X to allocate memory beyong 4G (if available) and do not allocate low range for crashkernel if the user does not specify that with crashkernel_low=Y. This causes regression if iommu is not enabled. Without iommu, swiotlb needs to be setup in first 4G and there is no low memory available to second kernel. Set crashkernel_low automatically if the user does not specify that. For system that does support IOMMU with kdump properly, user could specify crashkernel_low=0 to save that 72M low ram. -v3: add swiotlb_size() according to Konrad. -v4: add comments what 8M is for according to hpa. also update more crashkernel_low= in kernel-parameters.txt -v5: update changelog according to Vivek. -v6: Change description about swiotlb referring according to HATAYAMA. Reported-by: WANG Chao <chaowang@redhat.com> Tested-by: WANG Chao <chaowang@redhat.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Link: http://lkml.kernel.org/r/1366089828-19692-2-git-send-email-yinghai@kernel.org Acked-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-04-17Merge tag 'clksrc-cleanup-for-3.10-part2' of ↵Olof Johansson
git://sources.calxeda.com/kernel/linux into late/clksrc This is the 2nd part of ARM timer clean-ups for 3.10. This series has the following changes: - Add sched_clock selection logic to select the highest frequency clock - Use full 64-bit arch timer counter for sched_clock - Convert arch timer, sp804 and integrator-cp timers to CLKSRC_OF and adapt all users to use clocksource_of_init * tag 'clksrc-cleanup-for-3.10-part2' of git://sources.calxeda.com/kernel/linux: devtree: add binding documentation for sp804 ARM: integrator-cp: convert use CLKSRC_OF for timer init ARM: versatile: use OF init for sp804 timer ARM: versatile: add versatile dtbs to dtbs target ARM: vexpress: remove extra timer-sp control register clearing ARM: dts: vexpress: disable CA9 core tile sp804 timer ARM: vexpress: remove sp804 OF init ARM: highbank: use OF init for sp804 timer ARM: timer-sp: convert to use CLKSRC_OF init OF: add empty of_device_is_available for !OF ARM: convert arm/arm64 arch timer to use CLKSRC_OF init ARM: make machine_desc->init_time default to clocksource_of_init ARM: arch_timer: use full 64-bit counter for sched_clock ARM: make sched_clock just call a function pointer ARM: sched_clock: allow changing to higher frequency counter Signed-off-by: Olof Johansson <olof@lixom.net> This has a nasty set of conflicts with the exynos MCT code, which was moved in a separate branch, and then fixed up when merged in, but still conflicts a bit here. It should have been sorted out by this merge though.
2013-04-17spi/davinci: add DT binding documentationMurali Karicheri
Add binding documentation for spi-davinci module. [prakash.pm@ti.com: Follow DT naming convention for compatible property] Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-17x86,efi: Implement efi_no_storage_paranoia parameterRichard Weinberger
Using this parameter one can disable the storage_size/2 check if he is really sure that the UEFI does sane gc and fulfills the spec. This parameter is useful if a devices uses more than 50% of the storage by default. The Intel DQSW67 desktop board is such a sucker for exmaple. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2013-04-17ARM: davinci: da8xx: add remoteproc supportRobert Tivy
Add remoteproc platform device for controlling the DSP on da8xx. The patch uses CMA-based reservation of physical memory block for DSP use. A new kernel command-line parameter has been added to allow boot-time specification of the physical memory block. Signed-off-by: Robert Tivy <rtivy@ti.com> [nsekhar@ti.com: edit commit message for readability and style improvements] Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-04-17s390/s390dbf.txt: Add doc: Debug views are removed in debug_unregister()Michael Holzheu
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-04-17i2c: mux: Add i2c-arb-gpio-challenge 'mux' driverDoug Anderson
The i2c-arb-gpio-challenge driver implements an I2C arbitration scheme where masters need to claim the bus with a GPIO before they can start a transaction. This should generally only be used when standard I2C multimaster isn't appropriate for some reason (errata/bugs). This driver is based on code that Simon Glass added to the i2c-s3c2410 driver in the Chrome OS kernel 3.4 tree. The current incarnation as a mux driver is as suggested by Grant Likely. See <https://patchwork.kernel.org/patch/1877311/> for some history. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-04-17Revert "[media] v4l2: Add a V4L2 driver for SI476X MFD"Mauro Carvalho Chehab
As requested by Andrey Smirnov <andrew.smirnov@gmail.com>, revert this patch. This reverts commit 30bac9110455402fa8888740c6819dd3daa2666f. Conflicts: drivers/media/radio/Kconfig drivers/media/radio/radio-si476x.c Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-16power_supply: Define Binding for power-suppliesRhyland Klein
This property is meant to be used in device nodes which represent power_supply devices that wish to provide a list of supplies which provide them power, such as a battery listing its chargers. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-04-16hwmon: Add ST-Ericsson ABX500 hwmon driverHongbo Zhang
Each of ST-Ericsson X500 chip set series consists of both ABX500 and DBX500 chips. This is ABX500 hwmon driver, where the abx500.c is a common layer for all ABX500s, and the ab8500.c is specific for AB8500 chip. Under this designed structure, other chip specific files can be added simply using the same common layer abx500.c. Signed-off-by: Hongbo Zhang <hongbo.zhang@linaro.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-04-17Revert "of/exynos_g2d: Add Bindings for exynos G2D driver"Sachin Kamat
This reverts commit 09495dda6a62c74b13412a63528093910ef80edd. The description is incomplete and the location of this file is incorrect. Based on discussion with the Samsung media and DRM subsystem maintainers, the documentaion of Samsung G2D bindings has been placed at: Documentation/devicetree/bindings/gpu/samsung-g2d.txt Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2013-04-16of/documentation: move video device bindings to a common placeRahul Sharma
Binding Documents for drm-devices are placed in Documentation/devicetree/bindings/drm/*. But these devices are common for v4l framework, hence moved to a common place at Documentation/devicetree/bindings/video/. 'exynos_' prefix is added to associate them with exynos soc series. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-04-16spi/s3c64xx: let device core setup the default pin configurationThomas Abraham
With device core now able to setup the default pin configuration, the pin configuration code based on the deprecated Samsung specific gpio bindings is removed. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Doug Anderson <dianders@chromium.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Grant Likely <grant.likely@linaro.org>
2013-04-16gpio: update gpio Chinese documentationChen Baozi
Since the GENERIC_GPIO has been removed and the documentation of it has been modified, this patch updates the corresponding documentation of gpio in Chinese. Signed-off-by: Chen Baozi <baozich@gmail.com> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Grant Likely <grant.likely@secretlab.ca>
2013-04-16Remove GENERIC_GPIO config optionAlexandre Courbot
GENERIC_GPIO has been made equivalent to GPIOLIB in architecture code and all driver code has been switch to depend on GPIOLIB. It is thus safe to have GENERIC_GPIO removed. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca>
2013-04-16Merge branch 'uprobes/core' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc into perf/core Pull uprobes updates from Oleg Nesterov: - "uretprobes" - an optimization to uprobes, like kretprobes are an optimization to kprobes. "perf probe -x file sym%return" now works like kretprobes. - PowerPC fixes plus a couple of cleanups/optimizations in uprobes and trace_uprobes. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-04-15pinctrl: pinctrl-single: add missing double quoteLad, Prabhakar
add a missing double quote for compatible property for pmx_wkup. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Cc: Tony Lindgren <tony@atomide.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Cc: devicetree-discuss@lists.ozlabs.org Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-15nohz: Switch from "extended nohz" to "full nohz" based namingFrederic Weisbecker
"Extended nohz" was used as a naming base for the full dynticks API and Kconfig symbols. It reflects the fact the system tries to stop the tick in more places than just idle. But that "extended" name is a bit opaque and vague. Rename it to "full" makes it clearer what the system tries to do under this config: try to shutdown the tick anytime it can. The various constraints that prevent that to happen shouldn't be considered as fundamental properties of this feature but rather technical issues that may be solved in the future. Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Christoph Lameter <cl@linux.com> Cc: Geoff Levand <geoff@infradead.org> Cc: Gilad Ben Yossef <gilad@benyossef.com> Cc: Hakan Akkan <hakanakkan@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Kevin Hilman <khilman@linaro.org> Cc: Li Zhong <zhong@linux.vnet.ibm.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de>
2013-04-15Merge tag 'asoc-v3.10' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next ASoC: Updates for v3.10 A bunch of changes here, the most interesting one subsystem wise being Morimoto-san's work to create snd_soc_component which doesn't do much for now but will be pretty important going forwards: - Add a new component object type which will form the basis of moving to a more generic handling of SoC and off-SoC components, contributed by Kuninori Morimoto. - A fairly large set of cleanups for the dmaengine integration from Lars-Peter Clausen, starting to move towards being able to have a generic driver based on the library. - Performance optimisations to DAPM from Ryo Tsutsui. - Support for mixer control sharing in DAPM from Stephen Warren. - Multiplatform ARM cleanups from Arnd Bergmann. - New CODEC drivers for AK5385 and TAS5086 from Daniel Mack.
2013-04-15Input: st1232 - add reset pin handlingBastian Hecht
We add the possibility to hand over a GPIO number for the reset pin. This way we can remove existing board code that takes care of it and group this information properly in the platform data or in the device tree configuration. Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-04-15dma: acpi-dma: introduce ACPI DMA helpersAndy Shevchenko
There is a new generic API to get a DMA channel for a slave device (commit 9a6cecc8 "dmaengine: add helper function to request a slave DMA channel"). In similar fashion to the DT case (commit aa3da644 "of: Add generic device tree DMA helpers") we introduce helpers to the DMAC drivers which are enumerated by ACPI. The proposed extension provides the following API calls: acpi_dma_controller_register(), devm_acpi_dma_controller_register() acpi_dma_controller_free(), devm_acpi_dma_controller_free() acpi_dma_simple_xlate() acpi_dma_request_slave_chan_by_index() acpi_dma_request_slave_chan_by_name() The first two should be used, for example, at probe() and remove() of the corresponding DMAC driver. At the register stage the DMAC driver supplies a custom xlate() function to translate a struct dma_spec into struct dma_chan. Accordingly to the ACPI Fixed DMA resource specification the only two pieces of information the slave device has are the channel id and the request line (slave id). Those two are represented by struct dma_spec. The acpi_dma_request_slave_chan_by_index() provides access to the specifix FixedDMA resource by its index. Whereas dma_request_slave_channel() takes a string parameter to identify the DMA resources required by the slave device. To make a slave device driver work with both DeviceTree and ACPI enumeration a simple convention is established: "tx" corresponds to the index 0 and "rx" to the index 1. In case of robust configuration the slave device driver unfortunately needs to call acpi_dma_request_slave_chan_by_index() directly. Additionally the patch provides "managed" version of the register/free pair i.e. devm_acpi_dma_controller_register() and devm_acpi_dma_controller_free(). Usually, the driver uses only devm_acpi_dma_controller_register(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: append verify result to resultsAndy Shevchenko
Comparison between buffers is stored to the dedicated structure. Note that the verify result is now accessible only via file 'results' in the debugfs. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: gather test results in the linked listAndy Shevchenko
The patch provides a storage for the test results in the linked list. The gathered data could be used after test is done. The new file 'results' represents gathered data of the in progress test. The messages collected are printed to the kernel log as well. Example of output: % cat /sys/kernel/debug/dmatest/results dma0chan0-copy0: #1: No errors with src_off=0x7bf dst_off=0x8ad len=0x3fea (0) The message format is unified across the different types of errors. A number in the parens represents additional information, e.g. error code, error counter, or status. Note that the buffer comparison is done in the old way, i.e. data is not collected and just printed out. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: return actual state in 'run' fileAndy Shevchenko
The following command should return actual state of the test. % cat /sys/kernel/debug/dmatest/run To wait for test done the user may perform a busy loop that checks the state. % while [ $(cat /sys/kernel/debug/dmatest/run) = "Y" ] > do > echo -n "." > sleep 1 > done > echo Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-15dmatest: run test via debugfsAndy Shevchenko
Instead of doing modprobe dmatest ... modprobe -r dmatest we allow user to run tests interactively. The dmatest could be built as module or inside kernel. Let's consider those cases. 1. When dmatest is built as a module... After mounting debugfs and loading the module, the /sys/kernel/debug/dmatest folder with nodes will be created. They are the same as module parameters with addition of the 'run' node that controls run and stop phases of the test. Note that in this case test will not run on load automatically. Example of usage: % echo dma0chan0 > /sys/kernel/debug/dmatest/channel % echo 2000 > /sys/kernel/debug/dmatest/timeout % echo 1 > /sys/kernel/debug/dmatest/iterations % echo 1 > /sys/kernel/debug/dmatest/run After a while you will start to get messages about current status or error like in the original code. Note that running a new test will stop any in progress test. 2. When built-in in the kernel... The module parameters that is supplied to the kernel command line will be used for the first performed test. After user gets a control, the test could be interrupted or re-run with same or different parameters. For the details see the above section "1. When dmatest is built as a module..." In both cases the module parameters are used as initial values for the test case. You always could check them at run-time by running % grep -H . /sys/module/dmatest/parameters/* Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-04-14Merge tag 'msm-core-3.10' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into next/soc From David Brown: Patches for MSM core These patches are changes to the MSM timer code that will be for upcoming targets, including a generalization of the binding and preventing a missing timer interrupt. * tag 'msm-core-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm: ARM: msm: Wait for timer clear to complete ARM: msm: Rework timer binding to be more general Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-14ARM: socfpga: Add clock entries into device treeDinh Nguyen
Adds the main PLL clock groups for SOCFPGA into device tree file so that the clock framework to query the clock and clock rates appropriately. $cat /sys/kernel/debug/clk/clk_summary clock enable_cnt prepare_cnt rate --------------------------------------------------------------------- osc1 2 2 25000000 sdram_pll 0 0 400000000 s2f_usr2_clk 0 0 66666666 ddr_dq_clk 0 0 200000000 ddr_2x_dqs_clk 0 0 400000000 ddr_dqs_clk 0 0 200000000 periph_pll 2 2 500000000 s2f_usr1_clk 0 0 50000000 per_base_clk 4 4 100000000 per_nand_mmc_clk 0 0 25000000 per_qsi_clk 0 0 250000000 emac1_clk 1 1 125000000 emac0_clk 0 0 125000000 main_pll 1 1 1600000000 cfg_s2f_usr0_clk 0 0 100000000 main_nand_sdmmc_clk 0 0 100000000 main_qspi_clk 0 0 400000000 dbg_base_clk 0 0 400000000 mainclk 0 0 400000000 mpuclk 1 1 800000000 smp_twd 1 1 200000000 Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Reviewed-by: Pavel Machek <pavel@denx.de> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-14Merge 3.9-rc7 intp tty-nextGreg Kroah-Hartman
We want the fixes here. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-14Merge 3.9-rc7 into staging-nextGreg Kroah-Hartman
We want these fixes here. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-14Merge 3.9-rc7 into driver-core-nextGreg Kroah-Hartman
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-14Merge 3.9-rc7 into char-misc-nextGreg Kroah-Hartman
We want the fixes in there. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-14[media] v4l2: rename VIDIOC_DBG_G_CHIP_NAME to _CHIP_INFOHans Verkuil
This ioctl will be extended to return more information than just the name. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-14[media] v4l2: drop V4L2_CHIP_MATCH_SUBDEV_NAMEHans Verkuil
After using the new VIDIOC_DBG_G_CHIP_NAME ioctl I realized that the matching by name possibility is useless. Just drop it and rename MATCH_SUBDEV_IDX to just MATCH_SUBDEV. The v4l2-dbg utility is much better placed to match by name by just enumerating all bridge and subdev devices until chip_name.name matches. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-14[media] v4l2: put VIDIOC_DBG_G_CHIP_NAME under ADV_DEBUGHans Verkuil
Only enable this ioctl if the VIDEO_ADV_DEBUG config option is set. This prevents abuse from both userspace and kernelspace (some bridge drivers abuse DBG_G_CHIP_IDENT, lets prevent that from happening again with this ioctl). Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-14Thermal: build thermal governors into thermal_sys moduleZhang Rui
The thermal governors are part of the thermal framework, rather than a seperate feature/module. Because the generic thermal layer can not work without thermal governors, and it must load the thermal governors during its initialization. Build them into one module in this patch. This also fix a problem that the generic thermal layer does not work when CONFIG_THERMAL=m and CONFIG_THERMAL_GOV_XXX=y. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Acked-by: Eduardo Valentin <eduardo.valentin@ti.com> Acked-by: Durgadoss R <durgadoss.r@intel.com>
2013-04-13uretprobes: Documentation updateAnton Arapov
add the uretprobe syntax and update an example Signed-off-by: Anton Arapov <anton@redhat.com> Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Oleg Nesterov <oleg@redhat.com>
2013-04-12Merge tag 'imx-soc-3.10' of git://git.linaro.org/people/shawnguo/linux-2.6 ↵Olof Johansson
into next/soc2 From Shawn Guo: The imx soc changes for 3.10: * Enable anatop, well bisa and RBC for suspend to optimize the power consumption a little bit * Clock changes for TVE, LDB, PATA, SRTC support * Add System Reset Controller (SRC) support for imx5 and imx6 * Add initial imx6dl support based on imx6q code * Kconfig for cpufreq-cpu0, defconfig updates and few other changes * tag 'imx-soc-3.10' of git://git.linaro.org/people/shawnguo/linux-2.6: (275 commits) ARM i.MX53: set CLK_SET_RATE_PARENT flag on the tve_ext_sel clock ARM i.MX53: tve_di clock is not part of the CCM, but of TVE ARM i.MX53: make tve_ext_sel propagate rate change to PLL ARM i.MX53: Remove unused tve_gate clkdev entry ARM i.MX5: Remove tve_sel clock from i.MX53 clock tree ARM: i.MX5: Add PATA and SRTC clocks ARM: imx: do not bring up unavailable cores ARM: imx: add initial imx6dl support ARM: imx1: mm: add call to mxc_device_init ARM: imx_v4_v5_defconfig: Add CONFIG_GPIO_SYSFS ARM: imx_v6_v7_defconfig: Select CONFIG_PERF_EVENTS ARM: i.MX53 Add the cko1, cko2 clock outputs. staging: drm/imx: Use SRC to reset IPU ARM i.MX6q: Add GPU, VPU, IPU, and OpenVG resets to System Reset Controller (SRC) ARM: imx: do not use regmap_read for ANADIG_DIGPROG ARM i.MX6q: set the LDB serial clock parent to the video PLL ARM i.MX6q: Add audio/video PLL post dividers for i.MX6q rev 1.1 ARM i.MX6q: fix ldb di divider and selector clocks ARM i.MX53: fix ldb di divider and selector clocks ARM i.MX: Add imx_clk_divider_flags and imx_clk_mux_flags ... Signed-off-by: Olof Johansson <olof@lixom.net> Trivial change/change conflict in arch/arm/mach-imx/mach-imx6q.c resolved.
2013-04-12Merge branch 'reset/for_v3.10' of git://git.pengutronix.de/git/pza/linux ↵Olof Johansson
into next/drivers From Philipp Zabel, this is a series that adds a simple API for devices to request being reset by a separate reset controller hardware, and it implements reset signal device tree bindings. * 'reset/for_v3.10' of git://git.pengutronix.de/git/pza/linux: reset: NULL deref on allocation failure reset: Add reset controller API dt: describe base reset signal binding Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-12Merge tag 'dt-exynos-for-v3.10' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/dt2 update device tree for exynos4 and exynos5 * tag 'dt-exynos-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (125 commits) ARM: dts: add PDMA0 changes for exynos5440 ARM: dts: Add cpufreq controller node for Exynos5440 SoC ARM: dts: Fix gmac clock ids due to changes in Exynos5440 ARM: dts: add device tree file for SD5v1 board ARM: dts: update bootargs to boot from sda2 for exynos5440-ssdk5440 ARM: dts: add PMU support in exynos5440 ARM: dts: Add node for GMAC for exynos5440 ARM: dts: list the interrupts generated by pin-controller on Exynos5440 ARM: dts: Add FIMD DT binding Documentation ARM: dts: Add FIMD node and display timing node to exynos4412-origen.dts ARM: dts: Add FIMD node to exynos4 ARM: dts: Add SYSREG block node for S5P/Exynos4 SoC series ARM: dts: Add display timing node to exynos5250-smdk5250.dts ARM: dts: Add FIMD node to exynos5 ARM: dts: Add virtual GIC DT bindings for exynos5440 ARM: dts: Document usb clocks in samsung,exynos4210-ehci/ohci bindings ARM: dts: add usb 2.0 clock references to exynos5250 device tree ARM: dts: Add architected timer nodes for exynos5250 ARM: dts: Declare the gic as a15 compatible for exynos5250 ARM: dts: Add HDMI HPD and regulator node for Arndale board ... Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-12documentation: hwmon: Fix typo in documentation/hwmonMasanari Iida
Correct spelling typo in Documentation/hwmon Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-12Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is a set of ten bug fixes (and two consisting of copyright year update and version number change) pretty much all of which involve either a crash or a hang except the removal of the random sleep from the qla2xxx driver (which is a coding error so bad, we want it gone before anyone has a chance to copy it)." * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: [SCSI] lpfc: fix potential NULL pointer dereference in lpfc_sli4_rq_put() [SCSI] libsas: fix handling vacant phy in sas_set_ex_phy() [SCSI] ibmvscsi: Fix slave_configure deadlock [SCSI] qla2xxx: Update the driver version to 8.04.00.13-k. [SCSI] qla2xxx: Remove debug code that msleeps for random duration. [SCSI] qla2xxx: Update copyright dates information in LICENSE.qla2xxx file. [SCSI] qla2xxx: Fix crash during firmware dump procedure. [SCSI] Revert "qla2xxx: Add setting of driver version string for vendor application." [SCSI] ipr: dlpar failed when adding an adapter back [SCSI] ipr: fix addition of abort command to HRRQ free queue [SCSI] st: Take additional queue ref in st_probe [SCSI] libsas: use right function to alloc smp response [SCSI] ipr: ipr_test_msi() fails when running with msi-x enabled adapter