- May 03, 2014
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Peter Meerwald authored
3-axis accelerometer sensor (2/4/8 g) with 12-bit resolution and I2C interface many extra features are unsupported (freefall detection, orientation change, autosleep) datasheet is here: http://cache.freescale.com/files/sensors/doc/data_sheet/MMA8452Q.pdf v2: (thanks to Jonathan Cameron) * use ARRAY_SIZE() Signed-off-by:
Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by:
Jonathan Cameron <jic23@kernel.org>
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Srinivas Pandruvada authored
Fixing issue caused by clash of two patches, one adding a name with the acpi enumeration patch. 54ab3e24 Beomho Seo 2014-04-02 @572 indio_dev->name = id->name; d913971e Srinivas Pandruvada 2014-03-19 574 indio_dev->name = name; The name added by commit 54ab3e24 is not required as this is already added by taking care of case where id is NULL. Signed-off-by:
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Reported-by:
kbuild test robot <fengguang.wu@intel.com> Signed-off-by:
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Peter Meerwald authored
Cc: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by:
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Peter Meerwald authored
has been in use for a long time, but never documented; state that this measurement should be in lux (drivers may feel different about this) Signed-off-by:
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Peter Meerwald authored
intensity has been in use for a long time but never documented it is beneficial to document what this is supposed to be Signed-off-by:
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Peter Meerwald authored
I2C-controlled sensor measures ambient and object temperatuer see http://www.melexis.com/Infrared-Thermometer-Sensors/Infrared-Thermometer-Sensors/MLX90614-615.aspx Signed-off-by:
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Peter Meerwald authored
Signed-off-by:
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Peter Meerwald authored
useful for contactless temperature sensors to distinguish between the ambient temperature and the temperature of the object Signed-off-by:
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Peter Meerwald authored
I2C-controlled sensor with 10-bit pressure and temperature measurement datasheet: http://cache.freescale.com/files/sensors/doc/data_sheet/MPL3115A2.pdf v2: * use devm_iio_device_register() Signed-off-by:
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Peter Meerwald authored
add IIO_CHAN_INFO_CALIBBIAS Signed-off-by:
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Peter Meerwald authored
DR bits need to be shifted; since MAG3110_CTRL_DR_DEFAULT is zero, the change has no effect Signed-off-by:
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Dan Carpenter authored
My static checker is upset that we check IS_ERR(t->reg) when we know it is not an ERR_PTR. Checking for IS_ERR() twice is often a sign of confusion and buggy code. In this case, if the call to "ret = regulator_enable(st->vref);" fails, then we call "regulator_disable(st->vref);" and that's a mistake because "st->vref" is not enabled. I fixed these problems and Hartmut Knaack pointed out a couple unneeded IS_ERR() checks in ad799x_remove() so I have removed those as well. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Hartmut Knaack <knaack.h@gmx.de> Signed-off-by:
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- May 01, 2014
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Masanari Iida authored
Fix two format string mismatch in ad7280a.c Signed-off-by:
Masanari Iida <standby24x7@gmail.com> Signed-off-by:
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Naveen Krishna Chatradhi authored
Add reinit_completion() before the wait_for_completion_timeout in raw_read() call. Signed-off-by:
Naveen Krishna Chatradhi <ch.naveen@samsung.com> Reviewed-by:
Doug Anderson <dianders@chromium.org> Signed-off-by:
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Naveen Krishna Chatradhi authored
Do a soft reset software if a timeout happens. This is applicable only for ADC_V2. Signed-off-by:
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Naveen Krishna Chatradhi authored
ADC module on Exynos5 SoCs runs at 600KSPS. At this conversion rate, waiting for 1000 msecs is wasteful (incase of h/w failure). Hence, reduce the time out to 100msecs and use wait_for_completion_timeout() instead of wait_for_completion_interruptible_timeout() Signed-off-by:
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Naveen Krishna Ch authored
This patch maintains the following order in probe(), remove(), resume() and suspend() calls regulator enable, clk prepare enable ... clk disable unprepare, regulator disable While at it, 1. enable the regulator before the iio_device_register() 2. handle the return values for enable/disable calls Signed-off-by:
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- Apr 30, 2014
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Srinivas Pandruvada authored
Added documentation for reading quaternion components for 3D rotations. Signed-off-by:
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Srinivas Pandruvada authored
Added usage id processing for device rotation. This uses IIO interfaces for triggered buffer to present data to user mode.This uses HID sensor framework for registering callback events from the sensor hub. Data is exported to user space in the form of quaternion rotation format. Signed-off-by:
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Srinivas Pandruvada authored
Added quaternion in the list of supported modifiers. Signed-off-by:
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Srinivas Pandruvada authored
The current scan element type uses the following format: [be|le]:[s|u]bits/storagebits[>>shift]. To specify multiple elements in this type, added a repeat value. So new format is: [be|le]:[s|u]bits/storagebitsXr[>>shift]. Here r is specifying how may times, real/storage bits are repeating. When X is value is 0 or 1, then repeat value is not used in the format, and it will be same as existing format. Signed-off-by:
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Srinivas Pandruvada authored
This callback is introduced to overcome some limitations of existing read_raw callback. The functionality of both existing read_raw and read_raw_multi is similar, both are used to request values from the device. The current read_raw callback allows only two return values. The new read_raw_multi allows returning multiple values. Instead of passing just address of val and val2, it passes length and pointer to values. Depending on the type and length of passed buffer, iio client drivers can return multiple values. Signed-off-by:
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Srinivas Pandruvada authored
Introduce devm_kmemdup, which uses resource managed kmalloc. There are several request from maintainers to add this instead of using kmemdup. Signed-off-by:
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- Apr 28, 2014
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Greg Kroah-Hartman authored
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Linus Torvalds authored
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Will Deacon authored
The asm-generic, big-endian version of zero_bytemask creates a mask of bytes preceding the first zero-byte by left shifting ~0ul based on the position of the first zero byte. Unfortunately, if the first (top) byte is zero, the output of prep_zero_mask has only the top bit set, resulting in undefined C behaviour as we shift left by an amount equal to the width of the type. As it happens, GCC doesn't manage to spot this through the call to fls(), but the issue remains if architectures choose to implement their shift instructions differently. An example would be arch/arm/ (AArch32), where LSL Rd, Rn, #32 results in Rd == 0x0, whilst on arch/arm64 (AArch64) LSL Xd, Xn, #64 results in Xd == Xn. Rather than check explicitly for the problematic shift, this patch adds an extra shift by 1, replacing fls with __fls. Since zero_bytemask is never called with a zero argument (has_zero() is used to check the data first), we don't need to worry about calling __fls(0), which is undefined. Cc: <stable@vger.kernel.org> Cc: Victor Kamensky <victor.kamensky@linaro.org> Signed-off-by:
Will Deacon <will.deacon@arm.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
This merges the patch to fix possible loss of dirty bit on munmap() or madvice(DONTNEED). If there are concurrent writers on other CPU's that have the unmapped/unneeded page in their TLBs, their writes to the page could possibly get lost if a third CPU raced with the TLB flush and did a page_mkclean() before the page was fully written. Admittedly, if you unmap() or madvice(DONTNEED) an area _while_ another thread is still busy writing to it, you deserve all the lost writes you could get. But we kernel people hold ourselves to higher quality standards than "crazy people deserve to lose", because, well, we've seen people do all kinds of crazy things. So let's get it right, just because we can, and we don't have to worry about it. * safe-dirty-tlb-flush: mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs fixes from Chris Mason. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: limit the path size in send to PATH_MAX Btrfs: correctly set profile flags on seqlock retry Btrfs: use correct key when repeating search for extent item Btrfs: fix inode caching vs tree log Btrfs: fix possible memory leaks in open_ctree() Btrfs: avoid triggering bug_on() when we fail to start inode caching task Btrfs: move btrfs_{set,clear}_and_info() to ctree.h btrfs: replace error code from btrfs_drop_extents btrfs: Change the hole range to a more accurate value. btrfs: fix use-after-free in mount_subvol()
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git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull arm fixes from Russell King: "A number of fixes for the PJ4/iwmmxt changes which arm-soc forced me to take during the merge window. This stuff should have been better tested and sorted out *before* the merge window" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: 8042/1: iwmmxt: allow to build iWMMXt on Marvell PJ4B ARM: 8041/1: pj4: fix cpu_is_pj4 check ARM: 8040/1: pj4: properly detect existence of iWMMXt coprocessor ARM: 8039/1: pj4: enable iWMMXt only if CONFIG_IWMMXT is set ARM: 8038/1: iwmmxt: explicitly check for supported architectures
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 fixes from Catalin Marinas: - compat renameat2 syscall wiring and __NR_compat_syscalls fix - TLB fix for transparent huge pages following switch to generic mmu_gather - spinlock initialisation for init_mm's context - move of_clk_init() earlier - Kconfig duplicate entry fix * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: init: Move of_clk_init to time_init arm64: initialize spinlock for init_mm's context arm64: debug: remove noisy, pointless warning arm64: mm: Add THP TLB entries to general mmu_gather arm64: add renameat2 compat syscall ARM64: Remove duplicated Kconfig entry for "kernel/power/Kconfig" arm64: __NR_compat_syscalls fix
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Oleg Drokin authored
Quiet the warning below in Lustre code. Actually the warning is invalid since we either always assign the symname in ll_readlink_internal or return an error there and then the following rc check would assign symlink variable explicitly. In file included from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/linux/lustre_compat25.h:41:0, from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/linux/lvfs.h:48, from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/lvfs.h:45, from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/obd_support.h:41, from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/obd_class.h:40, from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/linux/lustre_lite.h:49, from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/lustre_lite.h:45, from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/symlink.c:42: /home/green/bk/linux/drivers/staging/lustre/lustre/llite/symlink.c: In function ‘ll_follow_link’: /home/green/bk/linux/include/linux/namei.h:88:29: warning: ‘symname’ may be used uninitialized in this function [-Wmaybe-uninitialized] nd->saved_names[nd->depth] = path; ^ /home/green/bk/linux/drivers/staging/lustre/lustre/llite/symlink.c:123:8: note: ‘symname’ was declared here char *symname; ^ Signed-off-by:Oleg Drokin <oleg.drokin@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq fixes from Thomas Gleixner: "A slighlty large fix for a subtle issue in the CPU hotplug code of certain ARM SoCs, where the not yet online cpu needs to setup the cpu local timer and needs to set the interrupt affinity to itself. Setting interrupt affinity to a not online cpu is prohibited and therefor the timer interrupt ends up on the wrong cpu, which leads to nasty complications. The SoC folks tried to hack around that in the SoC code in some more than nasty ways. The proper solution is to have a way to enforce the affinity setting to a not online cpu. The core patch to the genirq code provides that facility and the follow up patches make use of it in the GIC interrupt controller and the exynos timer driver. The change to the core code has no implications to existing users, except for the rename of the locked function and therefor the necessary fixup in mips/cavium. Aside of that, no runtime impact is possible, as none of the existing interrupt chips implements anything which depends on the force argument of the irq_set_affinity() callback" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource: Exynos_mct: Register clock event after request_irq() clocksource: Exynos_mct: Use irq_force_affinity() in cpu bringup irqchip: Gic: Support forced affinity setting genirq: Allow forcing cpu affinity of interrupts
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull tty/serial fixes from Greg KH: "Here are a few tty/serial fixes for 3.15-rc3 that resolve a number of reported issues in the 8250 and samsung serial drivers, as well as a character loss fix for the tty core that was caused by the lock removal patches a release ago" * tag 'tty-3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: serial_core: fix uart PORT_UNKNOWN handling serial: samsung: Change barrier() to cpu_relax() in console output serial: samsung: don't check config for every character serial: samsung: Use the passed in "port", fixing kgdb w/ no console serial: 8250: Fix thread unsafe __dma_tx_complete function 8250_core: Fix unwanted TX chars write tty: Fix race condition between __tty_buffer_request_room and flush_to_ldisc
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging / IIO driver fixes from Greg KH: "Here are some small staging and IIO driver fixes for 3.15-rc3. Nothing major at all, just some assorted issues that people have reported" * tag 'staging-3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: comedi: usbdux: bug fix for accessing 'ao_chanlist' in private data iio: adc: mxs-lradc: fix warning when buidling on avr32 iio: cm36651: Fix i2c client leak and possible NULL pointer dereference iio: querying buffer scan_mask should return 0/1 staging:iio:ad2s1200 fix a missing break iio: adc: at91_adc: correct default shtim value ARM: at91: at91sam9260: change at91_adc name ARM: at91: at91sam9g45: change at91_adc name iio: cm32181: Fix read integration time function iio: adc: at91_adc: Repair broken platform_data support
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Bobi Jam authored
lov_fiemap() does not take consider its @vallen parameter, which is the max buffer size the caller can hold for the fiemap extents. This patch fixes this and limits the max mapped fiemap extent count to fit in the preallocted buffer. This patch also fixes a memory out of bound write issue when the fiemap call is only for detecting the number of existing extent. Signed-off-by:
Bobi Jam <bobijam.xu@intel.com> Reviewed-on: http://review.whamcloud.com/9834 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4619 Reviewed-by:
Fan Yong <fan.yong@intel.com> Reviewed-by:
Patrick Farrell <paf@cray.com> Signed-off-by:
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Oleg Drokin authored
Apparently we are pretty bad about verifying our buffers passed from userspace. Signed-off-by:
Dmitry Eremin <dmitry.eremin@intel.com> Reviewed-by:
James Simmons <uja.ornl@gmail.com> Signed-off-by:
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Andreas Dilger authored
The Linux VFS and Lustre OST_SYNC RPC are both capable of specifying fsync() on a sub-extent of the file {start, end} instead of the full file. This allows less than the full amount of data to be flushed, reducing or possibly eliminating the work needed before the syscall can return. However, the handling of sub-extent of the file for fsync was lost with the move to CLIO on the client and OSD API on the server. They were ignoring the passed {start, end} and using {0, OBD_OBJECT_EOF} instead. Return the ability to pass a sub-extent for fsync() from the client, to the specific stripes/OSTs that need the sync operation, and pass it down to the OSD. The ZFS OSD doesn't handle this yet, but there is room for improvement in a separate patch. Signed-off-by:Andreas Dilger <andreas.dilger@intel.com> Reviewed-on: http://review.whamcloud.com/8626 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4388 Reviewed-by:
Bobi Jam <bobijam@gmail.com> Reviewed-by:
Jinshan Xiong <jinshan.xiong@intel.com> Signed-off-by:
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Ryan Haasken authored
In libcfs_debug_vmsg2, cdls_delay is only clamped between the minimum and the maximum when it is increased by multiplying by the backoff factor. It is not clamped when it is decreased by dividing by the backoff factor. This allows it to achieve values less than the minimum, which allows a console message to be printed that should have been skipped. This patch moves the clamping outside of the else statement, ensuring that cdls_delay is always between the min and the max after the first time through libcfs_debug_vmsg2. Signed-off-by:
Ryan Haasken <haasken@cray.com> Reviewed-on: http://review.whamcloud.com/9503 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4711 Reviewed-by:
Chris Horn <hornc@cray.com> Reviewed-by:
Ann Koehler <amk@cray.com> Reviewed-by:
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Swapnil Pimpale authored
Removed the checks for oi_lockless from osc_io_read_start() and osc_io_write_start(). This patch also removes the unnecessary call to cl_object_attr_get() in osc_io_write_start() before calling cl_object_attr_set() Signed-off-by:
Swapnil Pimpale <spimpale@ddn.com> Reviewed-on: http://review.whamcloud.com/8797 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3868 Reviewed-by:
John L. Hammond <john.hammond@intel.com> Reviewed-by:
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Li Xi authored
spin_is_locked() is always false when the platform is uniprocessor and CONFIG_DEBUG_SPINLOCK is not enabled. This patch replaces its assertion by assert_spin_locked(). Signed-off-by:
Li Xi <lixi@ddn.com> Signed-off-by:
Alexey Lyashkov <alexey_lyashkov@xyratex.com> Reviewed-by:
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