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* watchdog: s3c2410_wdt: use clk_prepare_enable and clk_disable_unprepareThomas Abraham2012-12-191-3/+3
| | | | | | | | Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare calls as required by common clock framework. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* watchdog: imx2_wdt: Select the driver via ARCH_MXCFabio Estevam2012-12-191-1/+1
| | | | | | | | | | | | With device tree support in place, we should not use IMX_HAVE_PLATFORM_IMX2_WDT as a dependency for selecting the imx2_wdt driver. Use ARCH_MXC symbol instead, so that the driver can be even selected by a device-tree only SoC, such as i.MX6. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* watchdog: cpu5wdt.c: add missing del_timer calldevendra.aaru2012-12-191-0/+1
| | | | | | | | We do a setup_timer at init stage of the module, but we didn't de-activate the time using del_timer. Signed-off-by: devendra.aaru <devendra.aaru@gmail.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* watchdog: hpwdt.c: Increase version stringTom Mingarelli2012-12-191-1/+1
| | | | | | | | Changing the version of the driver for all the latest patches being applied for kdump fixes. Signed-off-by: Thomas Mingarelli <thomas.mingarelli@hp.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* watchdog: Convert twl4030_wdt to watchdog coreJarkko Nikula2012-12-192-149/+35
| | | | | | | | | | | Convert the twl4030_wdt watchdog driver to watchdog core. While at there use devm_kzalloc and set the default timeout in order to be able test this driver with a simple shell script. Signed-off-by: Jarkko Nikula <jarkko.nikula@jollamobile.com> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* davinci_wdt: preparation for switch to common clock frameworkKaricheri, Muralidharan2012-12-191-2/+2
| | | | | | | | | | | | | | As a first step towards migrating davinci platforms to use common clock framework, replace all instances of clk_enable() with clk_prepare_enable() and clk_disable() with clk_disable_unprepare(). Until the platform is switched to use the CONFIG_HAVE_CLK_PREPARE Kconfig variable, this just adds a might_sleep() call and would work without any issues. This will make it easy later to switch to common clk based implementation of clk driver from DaVinci specific driver. Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* watchdog: sp805_wdt.c: use clk_prepare_enable and clk_disable_unprepareJulia Lawall2012-12-191-9/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clk_prepare_enable and clk_disable_unprepare combine clk_prepare and clk_enable, and clk_disable and clk_unprepare. They make the code more concise, and ensure that clk_unprepare is called when clk_enable fails. A simplified version of the semantic patch that introduces calls to these functions is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e; @@ - clk_prepare(e); - clk_enable(e); + clk_prepare_enable(e); @@ expression e; @@ - clk_disable(e); - clk_unprepare(e); + clk_disable_unprepare(e); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* watchdog: ath79_wdt: convert to use module_platform_driverGabor Juhos2012-12-191-11/+2
| | | | | | | | This makes the code a bit smaller by getting rid of some boilerplate code. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* Merge tag 'xtensa-20121218' of git://github.com/czankel/xtensa-linuxLinus Torvalds2012-12-1981-422/+2140
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull Xtensa patchset from Chris Zankel: "This contains support of device trees, many fixes, and code clean-ups" * tag 'xtensa-20121218' of git://github.com/czankel/xtensa-linux: (33 commits) xtensa: don't try to build DTB when OF is disabled xtensa: set the correct ethernet address for xtfpga xtensa: clean up files to make them code-style compliant xtensa: provide endianness macro for sparse xtensa: fix RASID SR initialization xtensa: initialize CPENABLE SR when core has one xtensa: reset all timers on initialization Use for_each_compatible_node() macro. xtensa: add XTFPGA DTS xtensa: add support for the XTFPGA boards xtensa: add device trees support xtensa: add IRQ domains support xtensa: add U-Boot image support (uImage). xtensa: clean up boot make rules xtensa: fix mb and wmb definitions xtensa: add s32c1i-based spinlock implementations xtensa: add s32c1i-based bitops implementations xtensa: add s32c1i-based atomic ops implementations xtensa: add s32c1i sanity check xtensa: add trap_set_handler function ...
| * xtensa: don't try to build DTB when OF is disabledMax Filippov2012-12-192-2/+2
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: set the correct ethernet address for xtfpgaChris Zankel2012-12-191-2/+34
| | | | | | | | | | | | | | The last byte of the mac address is determined by a DIP switch, so update the OF property with that address. Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: clean up files to make them code-style compliantChris Zankel2012-12-1949-175/+160
| | | | | | | | | | | | | | Remove heading and trailing spaces, trim trailing lines, and wrap lines that are longer than 80 characters. Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: provide endianness macro for sparseMax Filippov2012-12-191-0/+7
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: fix RASID SR initializationMax Filippov2012-12-191-1/+1
| | | | | | | | | | | | | | | | set_rasid_register accepts new RASID SR value, but ASID_USER_FIRST is ASID value for the ring 1; RASID value is made by ASID_INSERT macro. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: initialize CPENABLE SR when core has oneMax Filippov2012-12-191-1/+1
| | | | | | | | | | | | | | | | | | XCHAL_CP_NUM is defined in variant/tie.h and it is not included by head.S, leaving CPENABLE register uninitialised. XCHAL_HAVE_CP is defined in variant/core.h to 1 when core has CPENABLE SR. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: reset all timers on initializationMax Filippov2012-12-191-1/+1
| | | | | | | | | | | | | | There are XCHAL_NUM_TIMERS, reset them all. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * Use for_each_compatible_node() macro.Wei Yongjun2012-12-191-2/+2
| | | | | | | | | | | | Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: add XTFPGA DTSMax Filippov2012-12-195-0/+122
| | | | | | | | | | | | | | | | Add common XTFPGA parts as *.dtsi (base board, flash) and DTS for LX60 and for ML605. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: add support for the XTFPGA boardsMax Filippov2012-12-199-0/+472
| | | | | | | | | | | | | | | | | | The Avnet LX60/LX110/LX200 board is an FPGA board that can be configured with an Xtensa processor and an OpenCores Ethernet device. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: add device trees supportMax Filippov2012-12-197-25/+164
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Device trees allow specification of hardware topology and device parameters at runtime instead of hard-coding them in platform setup code. This allows running single binary kernel on a range of compatible boards. New boot parameters tag BP_TAG_FDT is allocated and a pointer to flat device tree is passed in it. Note that current interrupt mapping scheme uses single cell for interrupt identification. That means that IRQ numbers used in DTS must be CPU internal IRQ numbers, not external. It is possible to extend interrupt identification to two cells, and use second cell to tell external IRQ numbers form internal. That would allow to use single DTS on multiple boards with different mapping of external IRQ numbers. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: add IRQ domains supportMax Filippov2012-12-193-34/+94
| | | | | | | | | | | | | | | | | | IRQ domains provide a mechanism for conversion of linux IRQ numbers to hardware IRQ numbers and vice versus. It is used by OpenFirmware for linking device tree objects to their respective interrupt controllers. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: add U-Boot image support (uImage).Max Filippov2012-12-192-1/+16
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: clean up boot make rulesMax Filippov2012-12-193-29/+33
| | | | | | | | | | | | | | | | | | - remove duplicate rules for binary and packed image - use predefined macros for ld/objcopy/gzip - remove build-id section from bootable elf image Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: fix mb and wmb definitionsMax Filippov2012-12-191-3/+3
| | | | | | | | | | | | | | Define mb and wmb as memw to force memory barrier. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: add s32c1i-based spinlock implementationsMax Filippov2012-12-191-1/+187
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: add s32c1i-based bitops implementationsMax Filippov2012-12-191-1/+126
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: add s32c1i-based atomic ops implementationsMax Filippov2012-12-192-106/+236
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: add s32c1i sanity checkMax Filippov2012-12-193-0/+135
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a brief sanity test of S32C1I functionality. This instruction is needed by the kernel and userland as part of the base ABI (including GCC atomic builtins, certain threading packages, future atomic support in the C++ standard, etc). However, correct operation of this instruction requires some cooperation by hardware external to the processor (such as bus bridge, bus fabric, or memory controller). Minimally exercising this mechanism and reporting explicit status early in the boot process is helpful to chip vendors using the Linux kernel as a benchmark of correctness of hardware. As it turns out, S32C1I is not exercised by the kernel and by uClibc based userland as of early June 2008. This is expected to change soon as both incorporate more recent open source developments. Signed-off-by: Marc Gauthier <marc@tensilica.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: add trap_set_handler functionMax Filippov2012-12-192-0/+34
| | | | | | | | | | | | | | | | trap_set_handler sets new C-handler in the exception table and returns previous handler. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: initialize atomctl SRMax Filippov2012-12-193-0/+102
| | | | | | | | | | | | | | | | In order to use S32C1I instruction on cores with ATOMCTL SR the register must be properly initialized. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: save and restore scompare1 SR on kernel entryMax Filippov2012-12-193-1/+15
| | | | | | | | | | | | | | | | | | Although scompare1 may be saved/restored by xchal_ncp_{load,store} macros, explicit save/restore of registers manipulated by the kernel itself is considered more correct. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: display s32c1i feature flag in cpuinfoMax Filippov2012-12-191-0/+3
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: fix CPU cache flags formattingMax Filippov2012-12-191-3/+3
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: properly fix missing compiler barrier in simcallMax Filippov2012-12-191-6/+1
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: fix build warning for arch/xtensa/mm/tlb.cMax Filippov2012-12-191-1/+1
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: provide DMA_ERROR_CODE definitionMax Filippov2012-12-191-0/+2
| | | | | | | | | | | | | | | | | | | | | | This fixes the following allmodconfig build error: drivers/uio/uio_dmem_genirq.c:95:18: error: 'DMA_ERROR_CODE' undeclared (first use in this function) drivers/uio/uio_dmem_genirq.c:238:18: error: 'DMA_ERROR_CODE' undeclared (first use in this function) make[3]: *** [drivers/uio/uio_dmem_genirq.o] Error 1 Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: ISS: add BASE_BAUD definition to serial.hMax Filippov2012-12-191-0/+15
| | | | | | | | | | | | | | | | | | | | | | This fixes the following build error in allyesconfig: drivers/tty/serial/8250/8250_early.c: In function 'parse_options': drivers/tty/serial/8250/8250_early.c:160:18: error: 'BASE_BAUD' undeclared (first use in this function) Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: provide proper assembler function boundaries with ENDPROC()Chris Zankel2012-12-197-25/+147
| | | | | | | | | | | | Use ENDPROC() to mark the end of assembler functions. Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: make DoubleExceptionVector literals fit the gapMax Filippov2012-12-191-4/+10
| | | | | | | | | | | | | | | | | | | | | | Manually load references to exc_table from the explicit literal in order to fit DoubleExceptionVector.literals into the available 16-byte gap before DoubleExceptionVector.text in the absence of link time relaxation. Without this fix DoubleExceptionVector.literal section overlaps DoubleExceptionVector.text section in the linked vmlinux image. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: add config option to disable linker relaxationChris Zankel2012-12-192-2/+15
| | | | | | | | | | | | | | | | | | The default linker behavior is to optimize identical literal values and remove unnecessary overhead from assembler-generated "longcall" sequences to reduce code size. Provide an option to disable this behavior to improve compile time. Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: unbalanced parenthesesNicolas Kaiser2012-12-191-2/+2
| | | | | | | | | | Signed-off-by: Nicolas Kaiser <nikai@nikai.net> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa:fix the incompatible pointer type warning in time.cWanlong Gao2012-12-191-1/+1
| | | | | | | | | | | | | | | | Fix the definition of the function ccount_read to be compatible to the member read of the structure clocksource. Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* | Merge branch 'x86/nuke386' of ↵Linus Torvalds2012-12-193-52/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull one final 386 removal patch from Peter Anvin. IRQ 13 FPU error handling is gone. That was not one of the proudest moments in PC history. * 'x86/nuke386' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, 386 removal: Remove support for IRQ 13 FPU error reporting
| * | x86, 386 removal: Remove support for IRQ 13 FPU error reportingH. Peter Anvin2012-12-173-52/+1
| | | | | | | | | | | | | | | | | | | | | | | | Remove support for FPU error reporting via IRQ 13, as opposed to exception 16 (#MF). One last remnant of i386 gone. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Alan Cox <alan@linux.intel.com>
* | | Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds2012-12-192-1/+11
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull small x86 fixes from Peter Anvin: "A collection of very small fixes, mostly pure documentation." * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, doc: Document that bootloader ID 4 is used also by iPXE x86, doc: Add a formal bootloader ID for kexec-tools x86, 8042: Enable A20 using KBC to fix S3 resume on some MSI laptops
| * | | x86, doc: Document that bootloader ID 4 is used also by iPXEH. Peter Anvin2012-12-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Etherboot -> gPXE -> iPXE... Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Michael Brown <mbrown@fensystems.co.uk>
| * | | x86, doc: Add a formal bootloader ID for kexec-toolsH. Peter Anvin2012-12-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add bootloader id D for kexec-tools (it is kexec-tools, not the kexec system call, that builds the data structures, therefore it is kexec-tools which is the "bootloader" for this purpose.) Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Yinghai Lu <yinghai@kernel.org> Link: http://lkml.kernel.org/r/50C95832.5030306@zytor.com
| * | | x86, 8042: Enable A20 using KBC to fix S3 resume on some MSI laptopsOndrej Zary2012-12-111-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some MSI laptop BIOSes are broken - INT 15h code uses port 92h to enable A20 line but resume code assumes that KBC was used. The laptop will not resume from S3 otherwise but powers off after a while and then powers on again stuck with a blank screen. Fix it by enabling A20 using KBC in i8042_platform_init for x86. Fixes https://bugzilla.kernel.org/show_bug.cgi?id=12878 Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/201212112218.06551.linux@rainbow-software.org Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* | | | Merge tag 'for-linus-20121219' of git://git.infradead.org/linux-mtdLinus Torvalds2012-12-19121-1833/+2544
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MTD updates from David Woodhouse: - Various cleanups especially in NAND tests - Add support for NAND flash on BCMA bus - DT support for sh_flctl and denali NAND drivers - Kill obsolete/superceded drivers (fortunet, nomadik_nand) - Fix JFFS2 locking bug in ENOMEM failure path - New SPI flash chips, as usual - Support writing in 'reliable mode' for DiskOnChip G4 - Debugfs support in nandsim * tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd: (96 commits) mtd: nand: typo in nand_id_has_period() comments mtd: nand/gpio: use io{read,write}*_rep accessors mtd: block2mtd: throttle writes by calling balance_dirty_pages_ratelimited. mtd: nand: gpmi: reset BCH earlier, too, to avoid NAND startup problems mtd: nand/docg4: fix and improve read of factory bbt mtd: nand/docg4: reserve bb marker area in ecclayout mtd: nand/docg4: add support for writing in reliable mode mtd: mxc_nand: reorder part_probes to let cmdline override other sources mtd: mxc_nand: fix unbalanced clk_disable() in error path mtd: nandsim: Introduce debugfs infrastructure mtd: physmap_of: error checking to prevent a NULL pointer dereference mtg: docg3: potential divide by zero in doc_write_oob() mtd: bcm47xxnflash: writing support mtd: tests/read: initialize buffer for whole next page mtd: at91: atmel_nand: return bit flips for the PMECC read_page() mtd: fix recovery after failed write-buffer operation in cfi_cmdset_0002.c mtd: nand: onfi need to be probed in 8 bits mode mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus width mtd: nand: print flash size during detection mted: nand_wait_ready timeout fix ...
| * | | | mtd: nand: typo in nand_id_has_period() commentsBrian Norris2012-12-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The simple example provided in the comments for nand_id_has_period() actually has a period of 3, not 2. Silly mistake... Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>