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2012-01-03switch device_get_devnode() and ->devnode() to umode_t *Al Viro
both callers of device_get_devnode() are only interested in lower 16bits and nobody tries to return anything wider than 16bit anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03fs: move code out of buffer.cAl Viro
Move invalidate_bdev, block_sync_page into fs/block_dev.c. Export kill_bdev as well, so brd doesn't have to open code it. Reduce buffer_head.h requirement accordingly. Removed a rather large comment from invalidate_bdev, as it looked a bit obsolete to bother moving. The small comment replacing it says enough. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: new helper - vfs_ustat()Al Viro
... and bury user_get_super()/statfs_by_dentry() - they are purely internal now. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: for usbfs, etc. internal vfsmounts ->mnt_sb->s_root == ->mnt_rootAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: fix the stupidity with i_dentry in inode destructorsAl Viro
Seeing that just about every destructor got that INIT_LIST_HEAD() copied into it, there is no point whatsoever keeping this INIT_LIST_HEAD in inode_init_once(); the cost of taking it into inode_init_always() will be negligible for pipes and sockets and negative for everything else. Not to mention the removal of boilerplate code from ->destroy_inode() instances... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03Merge branch 'imx/board' into next/boardsArnd Bergmann
* imx/board: (4 commits) Enable 32 bit flash support for iMX21ADS board ARM: mx31pdk: Add MC13783 RTC support iomux-mx25: configuration to support CSPI3 on CSI pins MX1:apf9328: Add i2c support Updated to v3.2-rc6, conflicts: arch/arm/kernel/setup.c
2012-01-03Merge branch 'mxs/clk-prepare' of ↵Arnd Bergmann
git://git.linaro.org/people/shawnguo/linux-2.6 into imx/clk
2012-01-03Merge branch 'imx6/pm' into next/pmArnd Bergmann
* imx6/pm: ARM: imx6q: resume PL310 only when CACHE_L2X0 defined ARM: imx6q: build pm code only when CONFIG_PM selected ARM: mx5: use generic irq chip pm interface for pm functions on
2012-01-03Merge branch 'v3.2-rc7' into next/pmArnd Bergmann
Conflicts: arch/arm/kernel/setup.c arch/arm/mach-shmobile/board-kota2.c
2012-01-03ARM: mach-sa1100: fix implicit use of page.hBjorn Helgaas
Fixes this build error: arch/arm/mach-sa1100/nanoengine.c:75:11: error: 'PAGE_SHIFT' undeclared here (not in a function) CC: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-03ARM: 7236/1: vic: always use simple opsJamie Iles
Now that irq_domain_simple_ops are available for non-DT users, use them in the VIC driver so that we don't get a NULL dereference in irq_domain_to_irq() when registering the domain. Cc: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-03ARM: 7242/1: PL330: Detach the request from the pl330_thread when it ↵Javi Merino
finishes successful When a request has finished successfully and we are about to call its callback, remove its pointer from the corresponding pl330_thread . This prevents the core driver from calling its callback again if pl330_release_channel() is called without first flushing the device. When pl330_update() returns, the driver is allowed to free the pointer to pl330_req so the core driver shouldn't be able to access it again. Reference: <CAJe_ZhftO+481BfL0ErEcM_brfmSuTXkTEniLRYxxM2T7OM2QA@mail.gmail.com> Signed-off-by: Javi Merino <javi.merino@arm.com> Acked-by: Jassi Brar <jaswinder.singh@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-03ARM: 7184/1: fix $(CROSS_COMPILE) prefix missing from size invocationJanusz Krzysztofik
Otherwise, cross compilation may fail with error messages like: ... size: arch/arm/boot/compressed/../../../../vmlinux: File format is ambiguous size: Matching formats: elf32-littlearm elf32-littlearm-symbian elf32-littlearm-vxworks LD arch/arm/boot/compressed/vmlinux arm-angstrom-linux-uclibcgnueabi-ld:--defsym _kernel_bss_size=: syntax error Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-03ARM: 7257/1: EXYNOS: introduce arch/arm/mach-exynos/common.[ch]Kukjin Kim
This patch introduces common.[ch] which are used only in the arch/arm/mach-exynos/ directory. The common.c file merges the cpu.c, init.c, irq-combiner.c and irq-eint.c files which are used commonly on EXYNOS SoCs and the common.h file replaces with plat/exynos4.h file. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-03Enable 32 bit flash support for iMX21ADS boardJaccon Bastiaansen
The kernel configuration for the i.MX21ADS board (imx_v4_v5_defconfig) doesn't enable 32 bit flash support. But the i.MX21ADS specific code adds a 32 bit flash device, resulting in a kernel that refuses to boot. Signed-off-by: Jaccon Bastiaansen <jaccon.bastiaansen@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-01-03ARM: mx31pdk: Add MC13783 RTC supportFabio Estevam
MX31PDK board has a MC13783 PMIC, which provides RTC functionality. Add support for it. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-01-03iomux-mx25: configuration to support CSPI3 on CSI pinsPaul Fertser
This adds necessary defines for the CSPI3 module (activated with imx25_add_spi_imx2()) to work on the CSI pins (alternative mode 7). Signed-off-by: Paul Fertser <fercerpav@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-01-03MX1:apf9328: Add i2c supportGwenhael Goavec-Merou
Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-01-03pinctrl: rename U300 and SIRF pin controllersLinus Walleij
For stringent order, rename the pinmux-* pin controllers to pinctrl-* and also rename the Kconfig symbols and in-kernel users. Cc: Rongjun Ying <Rongjun.Ying@csr.com> Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-01-03arm/u300: don't use PINMUX_MAP_PRIMARY*Stephen Warren
The next patch will remove these macros. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-01-03pinctrl: move the U300 GPIO driver to pinctrlLinus Walleij
This driver will be converted to a dual GPIO + pinctrl driver since it supports biasing and driving control options. Hopefully it can serve as an example. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-01-03ARM: u300: localize GPIO assignmentsLinus Walleij
Move the GPIO assignments for the U300 variants down to a local header file in the mach-u300 directory. There is no point in broadcasting this across the entire kernel. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-01-03pinctrl: make a copy of pinmux mapLinus Walleij
This makes a deep copy of the pinmux function map instead of keeping the copy supplied from the platform around. This makes it possible to tag the platforms map with __initdata as is also done as part of this patch. Rationale: a certain target platform (PXA) has numerous pinmux maps, many of which will be lying around unused after boot in a multi-platform binary. Instead, deep-copy the one we're going to use and tag them all __initdata so they go away after boot. ChangeLog v1->v2: - Fixup the deep copy, missed a few items on the struct, plus mark bool member non-const since we're making runtime copies if this stuff now. ChangeLog v2->v3: - Make a shallow copy (just copy the array of map structs) as Arnd noticed, string constants never get discarded by the kernel anyway, so these pointers may be safely copied over. Reviewed-by: Arnd Bergmann <arnd.bergmann@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-01-02Revert "ARM: move VMALLOC_END down temporarily for shmobile"Nicolas Pitre
This reverts commit 0af362f8440a78b970d5f215e234420fa87d0f3f as shmobile is not using a non-standard memory layout anymore. Signed-off-by: Nicolas Pitre <nico@linaro.org>
2012-01-02ARM: mach-shmobile: use standard 2MiB coherent DMA memory sizeMagnus Damm
The 158MiB memory area was used to support HD resolution multimedia workloads using the same legacy memory allocating solution as on SH. There are no in-tree kernel dependencies on the 158MiB setting, and future development should reserve and allocate memory using some other method like for instance CMA. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Nicolas Pitre <nico@linaro.org>
2012-01-03powerpc: Fix unpaired probe_hcall_entry and probe_hcall_exitLi Zhong
Unpaired calling of probe_hcall_entry and probe_hcall_exit might happen as following, which could cause incorrect preempt count. __trace_hcall_entry => trace_hcall_entry -> probe_hcall_entry => get_cpu_var => preempt_disable __trace_hcall_exit => trace_hcall_exit -> probe_hcall_exit => put_cpu_var => preempt_enable where: A => B and A -> B means A calls B, but => means A will call B through function name, and B will definitely be called. -> means A will call B through function pointer, so B might not be called if the function pointer is not set. So error happens when only one of probe_hcall_entry and probe_hcall_exit get called during a hcall. This patch tries to move the preempt count operations from probe_hcall_entry and probe_hcall_exit to its callers. Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com> Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> CC: stable@kernel.org [v2.6.32+] Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-01-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2012-01-02ASoC: pxa: Convert corgi to use snd_soc_register_card()Axel Lin
Use snd_soc_register_card() instead of creating a "soc-audio" platform device. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-31ARM: imx6: remove __CPUINIT annotation from v7_invalidate_l1Shawn Guo
The recent suspend testing on !SMP build discovers that the __CPUINIT annotation for v7_invalidate_l1 should not be there, as the function is called by resume path for not only SMP but also !SMP build. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2011-12-30Merge branch 'fixes' of ↵Linus Torvalds
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: ARM: 7237/1: PL330: Fix driver freeze ARM: 7197/1: errata: Remove SMP dependency for erratum 751472 ARM: 7196/1: errata: Remove SMP dependency for erratum 720789 ARM: 7220/1: mmc: mmci: Fixup error handling for dma ARM: 7214/1: mmc: mmci: Fixup handling of MCI_STARTBITERR
2011-12-30Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: plat-orion: make gpiochip label unique enable uncompress log on cpuimx35sd cpuimx35: fix touchscreen support cpuimx35sd: fix Kconfig clock-imx35: fix reboot in internal boot mode dma: MX3_IPU fix depends imx_v4_v5_defconfig: update default configuration cpuimx25sd: fix Kconfig arm/imx: fix cpufreq section mismatch ARM:imx:fix pwm period value ARM: OMAP: hwmod data: fix iva and mailbox hwmods for OMAP 3
2011-12-30Merge branch 'v3.2-samsung-fixes-4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung * 'v3.2-samsung-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: Remove duplicated SROMC static memory mapping ARM: SAMSUNG: Fix build error when selecting CPU_FREQ_S3C24XX_DEBUGFS on S3C2440
2011-12-30sparc32: remove unused file: include/asm/pgtsun4.hSam Ravnborg
sun4 is no longer supported and this file is unused. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2011-12-30Input: tegra-kbc - report wakeup key for some platformsRakesh Iyer
Tegra kbc cannot detect exact keypress causing wakeup in interrupt mode. Allow wakeup keypress to be reported for certain platforms. Signed-off-by: Rakesh Iyer <riyer@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-12-30ARM: imx6: fix v7_invalidate_l1 by adding I-Cache invalidationShawn Guo
The recent suspend/resume and reset testing on imx6q discovers that not only D-Cache but also I-Cache has random data and validity when the core comes out of a power recycle. This patch adds I-Cache invalidation into v7_invalidate_l1 to make sure both D-Cache and I-Cache invalidated on power-up. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2011-12-30ASoC: pxa: Convert poodle to use snd_soc_register_card()Axel Lin
Use snd_soc_register_card() instead of creating a "soc-audio" platform device. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-29Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86: Fix raw_spin_unlock_irqrestore() usage oprofile, arm/sh: Fix oprofile_arch_exit() linkage issue
2011-12-29procfs: do not confuse jiffies with cputime64_tAndreas Schwab
Commit 2a95ea6c0d129b4 ("procfs: do not overflow get_{idle,iowait}_time for nohz") did not take into account that one some architectures jiffies and cputime use different units. This causes get_idle_time() to return numbers in the wrong units, making the idle time fields in /proc/stat wrong. Instead of converting the usec value returned by get_cpu_{idle,iowait}_time_us to units of jiffies, use the new function usecs_to_cputime64 to convert it to the correct unit of cputime64_t. Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "Artem S. Tashkinov" <t.artem@mailcity.com> Cc: Dave Jones <davej@redhat.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-12-30m68k: allow ColdFire 547x and 548x CPUs to be built with MMU enabledGreg Ungerer
The ColdFire 547x and 548x CPUs have internal MMU hardware. All code to support this is now in, so we can build kernels with it enabled. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Matt Waddel <mwaddel@yahoo.com> Acked-by: Kurt Mahan <kmahan@xmission.com>
2011-12-30m68k/Kconfig: Separate classic m68k and coldfire earlyGeert Uytterhoeven
While you can build multiplatform kernels for machines with classic m68k processors, you cannot mix support for classic m68k and coldfire processors. To avoid such hybrid kernels, introduce CONFIG_M68KCLASSIC as an antipole for CONFIG_COLDFIRE, and make all specific processor support depend on one of them. All classic m68k machine support also needs to depend on this. The defaults (CONFIG_M68KCLASSIC if MMU, CONFIG_COLDFIRE if !MMU) are chosen such to make most of the existing configs build and work. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-12-30m68k: add ColdFire with MMU enabled support to the m68k mem init codeGreg Ungerer
The ColdFire has similar setup requirements to the SUN3 code, so we use that. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Matt Waddel <mwaddel@yahoo.com> Acked-by: Kurt Mahan <kmahan@xmission.com>
2011-12-30m68k: do not use m68k startup or interrupt code for ColdFire CPUsGreg Ungerer
The ColdFire CPUs have their own startup and interrupt code (in the platform/coldfire directory), and do not use the general m68k startup and interrupt code. In fact the use of the arch/m68k/kernel/head.o is not about CONFIG_MMU or not, it is really about the machine type we are compiling for. Modify the selection and use of head.o to be based on the machine type. Only select the local ints.o and vectors.o code if we are using the classic 68k CPU types (that use the conventional Morotola MMU or SUN3 MMU). Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Matt Waddel <mwaddel@yahoo.com> Acked-by: Kurt Mahan <kmahan@xmission.com>
2011-12-30m68k: add ColdFire FPU support for the V4e ColdFire CPUsGreg Ungerer
The V4e ColdFire CPU family also has an integrated FPU (as well as the MMU). So add code to support this hardware along side the existing m68k FPU code. The ColdFire FPU is of course different to all previous 68k FP units. It is close in operation to the 68060, but not completely compatible. The biggest issue to deal with is that the ColdFire FPU multi-move instructions are different. It does not support multi-moving the FP control registers, and the multi-move of the FP data registers uses a different instruction mnemonic. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Matt Waddel <mwaddel@yahoo.com> Acked-by: Kurt Mahan <kmahan@xmission.com>
2011-12-30m68k: adjustments to stack frame for ColdFire with MMU enabledGreg Ungerer
The exception return stack adjustment required by ColdFire when running with the MMU enabled is not completely identical to 680x0 processors. Specifically the format type 4 stack frame doesn't need any stack adjustment on exception return. And the ColdFire always must return with a frame type of 4, not 0. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Matt Waddel <mwaddel@yahoo.com> Acked-by: Kurt Mahan <kmahan@xmission.com>
2011-12-30m68k: use non-MMU linker script for ColdFire MMU buildsGreg Ungerer
Use the non-MMU linker script for ColdFire builds when we are building for MMU enabled. The image layout is correct for loading on existing ColdFire dev boards. The only addition required to the current non-MMU linker script is to add support for the fixup section. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Matt Waddel <mwaddel@yahoo.com> Acked-by: Kurt Mahan <kmahan@xmission.com>
2011-12-30m68k: ColdFire with MMU enabled uses same clocking code as non-MMUGreg Ungerer
We want to use the same timer support code for ColdFire CPU's when running with MMU enabled or not. So use the same time_no.c code even when the MMU is enabled for ColdFire. This also means we do not want CONFIG_ARCH_USES_GETTIMEOFFSET set, since that code is only in time_mm.c. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Matt Waddel <mwaddel@yahoo.com> Acked-by: Kurt Mahan <kmahan@xmission.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-12-30m68k: add code to setup a ColdFire 54xx platform when MMU enabledGreg Ungerer
We use the same setup code for ColdFire MMU enabled platforms as standard m68k. So add support for it to setup our 54xx ColdFire platforms. They do not support the same bootinfo parsing as other m68k platforms. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Matt Waddel <mwaddel@yahoo.com> Acked-by: Kurt Mahan <kmahan@xmission.com>
2011-12-30m68k: use non-MMU entry.S code when compiling for ColdFire CPUGreg Ungerer
No matter whether we are configured for non-MMU or MMU enabled if we are compiling for ColdFire CPU we always use the entry_no.S code. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Matt Waddel <mwaddel@yahoo.com> Acked-by: Kurt Mahan <kmahan@xmission.com>
2011-12-30m68k: create ColdFire MMU pgalloc codeGreg Ungerer
Add code to support the ColdFire V4e MMU pgalloc functions. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Matt Waddel <mwaddel@yahoo.com> Acked-by: Kurt Mahan <kmahan@xmission.com>
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