This change implements support for BMG160 Gyro sensor. Although chip
has several advanced features, this change implements minimum set
required for using gyro sensor.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Benjamin Romer [Mon, 18 Aug 2014 13:29:44 +0000 (09:29 -0400)]
staging: unisys: simplify destroy_bus() in uislib.c
The destroy_bus() function is heavily indented and many lines extend past the
right margin. This patch simplifies the function without changing its effects.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge tag 'iio-for-3.18a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into work-next
Jonathan writes:
1st round of new IIO drivers, functionality and cleanups for the 3.18 cycle.
Maintainer Updates
* Add 3 designated reviewers for IIO. Lars, Peter and Hartmut have been
actively reviewing a lot of patches for a while now so this reflects
the status quo. These three are probably the only reason I keep
my head above the water!
New drivers and device support
* max5821 DAC
* Rockchip SARADC
* TI ADC128S052 ADC
* BMC150 Accelerometer
* exynos ADC driver gains support for s3c24xx and s3c64xx parts.
* kxcjk-1013 gainst range control and runtime PM support to drive
down it's power usage.
Driver removals
* Drop ad5930, ad99850, ad9852, ad9910 and ad9951 drivers on the simple
basis that they drivers just provided a register write function with
no compliant user space ABI whatsoever. Much better to drop them and
start again for these in the fullness of time.
Core Enhancements
* Join together neighbouring elements in the demux units that feeds
the binary interfaces. This cuts down on the number of individual
copies needed when splitting out individual channels from the incoming
channel scans.
* Other demux related cleanups such as using roundup instead of a local
implementation.
Cleanups
* Drop an unnecessary double setting of the owner field in xilinx adc.
* Some more patches to use managed (devm) interfaces to cut down on
complexity of removal code.
* adis16060 coding style fixlets.
* Fix some incorrect error returns in the Xilinx ADC driver.
* Coding style fixlets for various accelerometer drivers.
* Some sparse warning fixes to do with endianness and sign of variables.
* Fix an incorrect and entirely pointless use of sizeof on a dynamic pointer
in hid-sensor-magn-3d by dropping the relevant code.
Michal Simek [Wed, 13 Aug 2014 12:00:00 +0000 (13:00 +0100)]
iio: adc: xilinx: Remove .owner field for driver
There is no need to init .owner field.
Based on the patch from Peter Griffin <peter.griffin@linaro.org>
"mmc: remove .owner field for drivers using module_platform_driver"
This patch removes the superflous .owner field for drivers which
use the module_platform_driver API, as this is overriden in
platform_driver_register anyway."
Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
All what these 'drivers' do is expose a single (non standard ABI) sysfs
attribute that when written to does a direct pass-through to spi_write(). This
is rather ugly and does not justify the existence of a driver as the same can
easily done by using the spidev interface.
The drivers will eventually be rewritten as proper IIO ABI compliant drivers
which do have the proper abstraction layers between userspace and the device.
But in the meantime these driver do not add any extra value and just clutter up
the staging area. So just remove them.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
MAINTAINERS: Add entry for Analog Devices IIO drivers
Add Michael and myself as the maintainer for the Analog Devices IIO drivers.
The entry matches on all files in drivers/staging/iio and drivers/iio/ starting
with the 'ad' prefix, except for 'adjd' as that one is used by Avago
Technologies.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
The dgnc_Major_Control_Registered variable purpose was to act as a flag
to indicate if the character device has been successfully registered
into the kernel. This flag was later checked in the module cleanup
function to know if the character device needs to be deregistered.
However the {device,class}_destroy and unregister_chrdev functions may
be called with 'invalid' data perfectly fine. This means that this
variable is not needed and can safely be removed which is what this
commit does.
Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: dgnc: Remove not needed dgnc_driver_start variable
The dgnc_driver_start variable purpose was to indicate if the driver
'start' routine has been called. Now, because the 'start' routine can
only be called once this variable is not needed thus this commit
removes it.
Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit removes the driver's global state variable. This is ok
because the state was changed only once at the end of init phase thus
the future usage of this variable is pointless.
Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the following warning using checkpatch.pl
WARNING: Prefer [subsystem eg: netdev]_warn([subsystem]dev, ... then
dev_warn(dev, ... then pr_warn(... to printk(KERN_WARNING ...
Signed-off-by: Hema Prathaban <hemaklnce@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Oleg Drokin [Fri, 15 Aug 2014 16:55:56 +0000 (12:55 -0400)]
staging/lustre: get rid of obd_* typedefs
We have a bunch of typedefs for common things that made no sense
and hid the actual type from plain view.
Replace them with proper uXX or sXX types.
Exception is in lustre_idl.h where
they are replaced with __uXX and __sXX to be able to be included
in userspace
Joe Perches [Sun, 17 Aug 2014 16:17:04 +0000 (09:17 -0700)]
staging: vt6655: Convert DBG_PRT to pr_<level>
DBG_PRT uses are unnecessarily complex.
Convert DBG_PRT msglevel to pr_<level>.
This changes the KERN_<level> type of several uses.
It also enables dynamic_debug for the pr_debug conversions.
This patch can be a prelude to converting these pr_<level>
uses to dev_<level> as appropriate.
Other changes:
Realign arguments of these conversions.
Remove now unused static int msglevel declarations.
Remove now unused DBG_PRT #define.
Compile tested only.
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Frank Zago [Fri, 15 Aug 2014 16:48:12 +0000 (12:48 -0400)]
staging/lustre/llite: optimize ll_fid2path()
The only parameter from userspace that matters is the length of the
buffer. We don't need to allocate then import the whole structure. By
importing only that length, we can save a memory allocation.
Add sparse annotations to that function.
Signed-off-by: frank zago <fzago@cray.com>
Reviewed-on: http://review.whamcloud.com/11167
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5389 Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Signed-off-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
John L. Hammond [Fri, 15 Aug 2014 16:48:10 +0000 (12:48 -0400)]
staging/lustre/clio: reorder initialization in cl_req_alloc()
In cl_req_alloc() ensure that the list heads crq_pages and crq_layers
have been initialized before passing the request to
cl_req_completion(). This fixes an oops in the error path.
Signed-off-by: John L. Hammond <john.hammond@intel.com>
Reviewed-on: http://review.whamcloud.com/11009
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5290 Reviewed-by: Bobi Jam <bobijam@gmail.com> Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com> Signed-off-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fan Yong [Fri, 15 Aug 2014 16:48:09 +0000 (12:48 -0400)]
staging/lustre/ldlm: drop redundant ibits lock interoperability check
In very old release (older than Lustre-1.8), if the client talks with
the server that does not support ibits lock, then the client needs to
convert it as plain lock. Such interoperability check and convertion
is out of date for a long time. Drop it.
Paul Cassella [Fri, 15 Aug 2014 16:48:08 +0000 (12:48 -0400)]
staging/lustre/llite: Make sure ft_flags is valid
In ll_fault0, the 'fault' struct is mostly cleared before the call to
cl_io_loop, but ft_flags is not reset. It is ordinarily set by
the call to filemap_fault in vvp_io_kernel_fault, but if Lustre
returns before calling filemap_fault, it still has the old value of
ft_flags.
ll_fault0 will then consume the ft_flags field. If it has the
VM_FAULT_RETRY bit set, it will be used as ll_fault0() and
ll_fault()'s return value.
This is a problem when VM_FAULT_RETRY is in ft_flags:
When fault/filemap_fault return with that flag set, they have already
released the mmap semaphore, and do_page_fault does not need to
release it.
Incorrectly returning this flag from ll_fault means mmap_sem
is not upped in the kernel's do_page_fault().
In addition to clearing ft_flags, this patch does not use it unless
it is valid. It's potentially misleading to return ft_flags in
"fault_ret" if ft_flags has not been set by filemap_fault.
This adds clarity, but does not change the current behavior:
When not valid, ft_flags is replaced by fault_ret, which is zero,
as is ft_flags when not set by filemap_fault.
staging: comedi: 8255: provide common defines for registers
There are a couple comedi drivers that duplicate some of the register
defines used by the 8255 module. Move these defines into the header
so the duplication can be removed.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The drivers that use this module with memory mapped io all have the
ioremap'ed base address stored in the comedi_device 'mmio' member.
Introduce a default (*io) function that does 8-bit memory mapped io.
Modify subdev_8255_init() so that it takes a flag parameter indicating
if the io is port or memory mapped. Make the function static and rename
it to __subdev_8255_init().
Introduce two exported wrappers for __subdev_8255_init():
subdev_8255_init() - for drivers that do 8-bit port io
subdev_8255_mm_init() - for drivers that do 8-bit memory mapped io
Use subdev_8255_mm_init() in the drivers that do 8-bit memory mapped io
and remove the private (*io) functions.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: 8255: refactor how the (*io) function works
Currently, all users of is module that use the default (*io) function
pass an 'iobase' to subdev_8255_init() of the form:
dev->iobase + OFFSET_TO_8255_BASE_REG
Now that the (*io) callback includes the comedi_device 'dev' pointer
the 'dev->iobase' does not need to be included.
Modify the default (*io) function, subdev_8255_io(), to automatically
add the dev->iobase to the address when reading/writing the port.
For aesthetics, rename the subdevice private data member to 'regbase'.
Also, rename the local variables in this module that are used to
access this member.
Add a comment in dev_8255_attach() about the 'iobase' that is passed
to subdev_8255_init(). For manually attached 8255 devices the io
region is requested with __comedi_request_region() which does not
set dev->iobase. For these devices the 'regbase' is actually the
'iobase'.
Remove the, now unnecessary, dev->iobase from all the callers of
subdev_8255_init(). There are a couple drivers that only passed the
dev->iobase. For those drivers pass a 'regbase' of 0x00.
Note that the das16m1 driver is a bit goofy. The devpriv->extra_iobase
is requested using __comedi_request_region() which does not set the
dev->iobase. But the starting address passed is dev->iobase + DAS16M1_82C55
so a 'regbase' of DAS16M1_82C55 is passed to subdev_8255_init().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: 8255: add a comedi_device param to the (*io) callback
The 8255 driver uses an (*io) callback to read/write the registers
of the 8255 device. The default callback provided by the driver uses
inb()/outb() calls to access to registers based on an 'iobase' that
was initialized during the subdev_8255_init() and a 'port' value.
The users of this module can optionally provide a custom (*io) callback
to handle the read/write in another manner.
Make the (*io) callback a bit more flexible by also passing the
comedi_device pointer as a parameter.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver uses two iobase addresses, found in PCI bars 2 and 3.
Currently, the address in PCI bar 2 is saved in the private data as
'iobase1' and the address in PCI bar 3 is saved in the comedi_device
as the 'iobase'. The 'iobase' is the base address of the daq
registers (ai/ao) of the board. The 'iobase1' address is the base
address of the 8255, 8254, configuration, and interrupt registers.
Flip the saving of these base addresses. Save the address from PCI
bar 2 in the comedi_device 'iobase' and the address from PCI bar 3
in the private data as 'daqio'.
This will help with some cleanup of the 8255 module.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver uses two iobase addresses, found in PCI bars 2 and 3.
Currently, the address in PCI bar 3 is saved in the comedi_device as
the 'iobase' and the one in PCI bar 2 is just passed to subdev_8255_init()
as the 'iobase' parameter.
Save the PCI bar 3 address in the private data as 'daqio' and the
address from PCI bar 2 in the comedi_device as the 'iobase'.
This will help with some cleanup of the 8255 module.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver uses three iobase addresses, found in PCI bars 2, 3, and 4.
Currently, the address in PCI bar 2 is saved in the comedi_device as
the 'iobase', the PCI bar 3 address is saved in the private data as
'BADR3' and the one in PCI bar 4 is just passed to subdev_8255_init()
as the 'iobase' parameter.
Flip the saving of the PCI bar 2 and 4 base addresses. Save the address
from PCI bar 2 in the private data as the 'daqio' and the address from
PCI bar 4 in the comedi_device as the 'iobase'.
This will help with some cleanup of the 8255 module.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: cb_pcidas: use dev->iobase for PCI bar 3
Currently the base address of the 8254 and 8255 devices, found in
PCI bar 3, is saved in the private data as 'pacer_counter_dio'.
The 'iobase' in the comedi_device is currently unused.
Save the address from PCI bar 3 in the comedi_device and remove
the unnecessary member from the private data.
This will help with some cleanup of the 8255 module.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This exported function just does a free_irq() to release the interrupt
handler for the legacy and PCI dio200 drivers.
The legacy driver also calls comedi_legacy_detach() which would also
do the free_irq(). For that driver the just use comedi_legacy_detach()
directly for the (*detach).
For the PCI driver, add the free_irq() to the private (*datach) function.
Remove the, then unused, dio200_common_detach() function.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This member of the boardinfo is only set for the PCIE boards. Use the
'is_pcie' flag to determine if the offset needs to be shifted when
reading/writing the registers.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: comedi: amplc_dio200.h: rename 'has_enhancements' in boardinfo
This member of the boardinfor is only set for the PCIE boards. For
aeshetics, rename it to 'is_pcie'.
For clarity, use this flag in the (*auto_attach) to determine if the
dio200_pcie_board_setup() function needs to be called instead of using
the switch (context_model).
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit performs a final tidying of the register map defines, bringing
them to a state that is ready for merging into addi_apci_1564.c when the
time comes. Actions performed include:
*Removes the APCI1564_ADDRESS_RANGE macro, which is no longer needed/used.
*Renames the APCI1564_DIGITAL_OP_{VCC,CC}_INTERRUPT_{ENABLE,DISABLE}
macros to shorter names which are more consistent with the digital input
interrupt macros.
*Fixes a typo in a comment (dev>iobase changed to dev->iobase).
*Renames the APCI1564_TCW_* macros to APCI1564_COUNTER_* names to more
accurately reflect that they are only offsets to counter registers (since
only the counters are offset from dev->iobase).
Signed-off-by: Chase Southwood <chase.southwood@gmail.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Cc: H Hartley Sweeten <hsweeten@visionengraver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Chase Southwood [Tue, 12 Aug 2014 02:03:19 +0000 (21:03 -0500)]
staging: comedi: addi_apci_1564: Remove in-driver watchdog support code
Starting with commit 1496e5961113 ("staging: comedi: addi_apci_1564: use
addi_watchdog module to init watchdog subdevice"), this driver uses the
addi_watchdog module to provide support for the watchdog subdevice. Any
remaining watchdog code in-driver can and should be removed.
This will also make future work on the timer and counter subdevices easier.
Signed-off-by: Chase Southwood <chase.southwood@gmail.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Cc: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The DO config function served the purpose of configuring the diagnostic
interrupts for the board. As the driver currently does not support
diagnostic interrupts, the digital output subdevice does not need an
insn_config operation and this function can be safely removed.
Signed-off-by: Chase Southwood <chase.southwood@gmail.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Cc: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ramesh Basukala [Thu, 14 Aug 2014 14:11:44 +0000 (10:11 -0400)]
Staging: bmc: fix coding style warning
This is a patch to the vendorspecificextn.c that fixes coding style
warning message line over 80 characters found by checkpatch.pl script.
I am submitting this patch as required by Eudyptula Challenge.
Adrian Remonda [Sun, 10 Aug 2014 18:39:57 +0000 (20:39 +0200)]
Staging: rtl8188eu: Removed unneeded code.
This patch removes some unneeded code.
1) kzalloc() allocates 4 extra bytes so that we can align the return
value. But actually the return value is already aligned so we can
remove the + 4 and the call to N_BYTE_ALIGMENT().
2) The memset() isn't needed because kzalloc() zeroes the allocation.
Suggested-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Adrian Remonda <adrianremonda@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jeremiah Mahler [Tue, 12 Aug 2014 07:03:44 +0000 (00:03 -0700)]
staging: rtl8192u/ieee80211: Fix sparse ieee80211_debug_init/_exit not declared warning
A sparse warning is generated about 'ieee80211_debug_init' and
'ieee80211_debug_exit' not being declared.
drivers/staging/rtl8192u/ieee80211/ieee80211_module.c:275:12: warning:
symbol 'ieee80211_debug_init' was not declared. Should it be static?
drivers/staging/rtl8192u/ieee80211/ieee80211_module.c:297:13: warning:
symbol 'ieee80211_debug_exit' was not declared. Should it be static?
These functions are used outside of this file so using static will not
work. The prototypes are given in r8192U_core.c but sparse nonetheless
still gives a warning. Fix the sparse warning by moving these
prototypes from r8192U_core.c to ieee80211.h.
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com> Cc: Joel Pelaez Jorge <joelpelaez@gmail.com> Cc: Andrea Merello <andrea.merello@gmail.com> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Joe Perches <joe@perches.com> Cc: Himangi Saraogi <himangi774@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Cc: Ana Rey <anarey@gmail.com> Cc: Chaitanya Hazarey <c@24.io> Cc: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Cc: Teodora Baluta <teobaluta@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ovidiu Toader [Mon, 11 Aug 2014 03:04:36 +0000 (20:04 -0700)]
drivers/staging/rtl8192u/r8192U_wx.c: fix warnings issued by sparse
This minor patch motivated by eudyptula challenge fixes the following warnings issued
by `sparse' in drivers/staging/rtl8192u/r8192U_wx.c:
.../r8192U_wx.c:27:5: warning: symbol 'rtl8180_rates' was not declared. Should it be static?
.../r8192U_wx.c:961:22: warning: symbol 'r8192_get_wireless_stats' was not declared. Should it be static?
.../r8192U_wx.c:990:24: warning: symbol 'r8192_wx_handlers_def' was not declared. Should it be static?
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