Minimal implementation. This driver provides raw illuminance readings.

This is based on drivers/hwmon/al3320.c (*) driver from msm tree written
by Tsechih Lin <Tsechih_Lin@asus.com>

* https://android.googlesource.com/kernel/msm.gitSigned-off-by: NDaniel Baluta <daniel.baluta@intel.com>
Reviewed-by: NHartmut Knaack <knaack.h@gmx.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Fix the checkpatch complaint regarding unnecessary line continuation.
  WARNING: Avoid unnecessary line continuations
  #143: FILE: ad7606_core.c:143:
Signed-off-by: NSören Brinkmann <soeren.brinkmann@gmail.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch adds support for KXCJ9-1008 3-axis acceleromenter sensor.
KXCJ9-1008 uses the same register definitions as KXCJK-1013.

The specification for KXCJ9-1008 can be downloaded from:
http://www.kionix.com/sites/default/files/KXCJ9-1008%20Specifications%20Rev%205.pdfSigned-off-by: NDaniel Baluta <daniel.baluta@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This add the necessary binding documentation for the saradc found in all recent
processors from Rockchip.
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

When CONFIG_PM_RUNTIME is not set, the following issues are seen:
 * warning message at compilation time:
    warning: 'bmc150_accel_get_startup_times' defined but not used [-Wunused-function]
 * bmc150_accel_set_power_state() will always fail and reading the
   accelerometer data is impossible;
   This occurs because of the call to pm_runtime_put_autosuspend calls
   __pm_runtime_suspend which returns -ENOSYS.

This commit fixes these.
Signed-off-by: NLaurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

According to documentation ([1] - page 27), the range for 16G is
7.81mg/LSB. Converted to SI, this is:
    7.81 * 10^-3 * 9.80665 m/s^2 / LSB = 0.0765899365 m/s^2 / LSB

[1] http://ae-bst.resource.bosch.com/media/products/dokumente/bmc150/BST-BMC150-DS000-04.pdfSigned-off-by: NLaurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Intersil chips ISL29018, ISL29023 and ISL29035 are very similar. They're
all ambience light sensors. The ISL29018, however, is also a proximity
sensor. The registers are similar too:

-------------+----------+----------
AVAILABLE IN | ADDR REG | NAME
   290xx     |          |
-------------+----------+----------
     18/23/35|       00h| COMMANDI
     18/23/35|       01h| COMMANDII (B4-7 are used only in 29018 for proximity)
     18/23/35|       02h| DATALSB
     18/23/35|       03h| DATAMSB
     18/23/35|       04h| INT_LT_LSB
     18/23/35|       05h| INT_LT_MSB
     18/23/35|       06h| INT_HT_LSB
     18/23/35|       07h| INT_HT_MSB
        18/23|       08h| TEST
           35|       0Fh| ID
-------------+----------+-----------

So, this patch will add support for ISL29023 and ISL29035 to the
existing isl29018 driver. Since these 2 chips don't have proximity
detection, the proximity sysfs attribute is not needed.

Also, for ISL29035, since it has an ID register, make use of it in order
to properly detect the chip and clear the brownout bit.
Signed-off-by: NLaurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

isl29108 was used, instead of isl29018.
Signed-off-by: NLaurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Value from st_sensors_set_drdy_int_pin() is assigned to err here,
but that stored value is not used before it is overwritten.  To fix
this we're enforcing a check on st_sensors_set_drdy_int_pin()'s
return value and if it's an error, we're returning right away.

Cc: jic23@kernel.org
Cc: linux-iio@vger.kernel.org
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The handle_adc_eoc_trigger() in only used in at91_adc.c. So make it
static.
Signed-off-by: NJosh Wu <josh.wu@atmel.com>
Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The rate variable in the probe function of the saradc is a remnant
of a previous patch iteration. It is unused and thus produces a
compile time warning. Therefore remove it.
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch removes the .owner field for drivers which use the
platform_driver_register api because this is overriden in
_platform_driver_register.
Signed-off-by: NSanjeev Sharma <Sanjeev_Sharma@mentor.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This chip has a motion detect capability. Using IIO events to
specify thresholds and pushing events.
In addition a new trigger of type any-motion is added, which
pushes data to buffer only when there is any movement.

Change list:
Comments addressed for
Re: [PATCH 5/6] iio: accel: kxcjk-1013: Support thresholds
Date: 07/20/2014

- Both motion detect and data ready can be enabled together
- Sending RISING/FALLING events based on int status
- Separate interrupt configuration for data ready and motion detect
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

data->range is already set by kxcjk1013_set_range.
Signed-off-by: NDaniel Baluta <daniel.baluta@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Added any-motion trigger documentation.
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

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: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The function uisutil_copy_fragsinfo_from_skb() in uisutils.c is messy and
over-indented. This patch fixes the function's indentation so it is cleaner.
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix the missing blank line between code and declarations in uisthread.c.
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove the extraneous return from the uislib module exit function.
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

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: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix the line spacing between code and local variables in uislib.c.
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

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.

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: NMichal Simek <michal.simek@xilinx.com>
Signed-off-by: NJonathan 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: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

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: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add those persons who generally tend to review new IIO patches to the list of
designated reviewers to make sure that they are Cc'ed on new patches.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Acked-by: NPeter Meerwald <pmeerw@pmeerw.net>
Acked-by: NHartmut Knaack <knaack.h@gmx.de>
Signed-off-by: NJonathan 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: NKonrad Zapalowicz <bergo.torino@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

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: NKonrad Zapalowicz <bergo.torino@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The polling counter variable is only exposed via sysfs and has no other
purpose.

Now, since the polling shall be implemented as a board specific feature
rather than being global in the driver this counter is obsolete.
Signed-off-by: NKonrad Zapalowicz <bergo.torino@gmail.com>
Signed-off-by: NGreg 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: NKonrad Zapalowicz <bergo.torino@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

we should use __packed attribute
Signed-off-by: NPurnendu Kapadia <pro8linux@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixed up warnings, break is not useful after return statement.
And the exit Label is deleted, now returning inline.
Signed-off-by: NJeshwanth Kumar N K <jeshkumar555@gmail.com>
Signed-off-by: NGreg 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: NHema Prathaban <hemaklnce@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes the following error using checkpatch.pl
Error: do not use assignment in if condition
Signed-off-by: NHema Prathaban <hemaklnce@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

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
Signed-off-by: NOleg Drokin <green@linuxhacker.ru>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

seqno_t is u64 and mdsno_t is u32 so just use them as such.
Signed-off-by: NOleg Drokin <green@linuxhacker.ru>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

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: NJoe Perches <joe@perches.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Reported by Dan Carpenter <dan.carpenter@oracle.com>

outsize = sizeof(*gfout) + gfin->gf_pathlen;

Where outsize is int and gf_pathlen is u32 from userspace
can lead to integer overflowwhere outsize is some small number
less than sizeof(*gfout)

Add a check for pathlen to be of sensical size.
Signed-off-by: NOleg Drokin <oleg.drokin@intel.com>
Reviewed-on: http://review.whamcloud.com/11412
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5476Reviewed-by: NDmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: NJohn L. Hammond <john.hammond@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

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: Nfrank zago <fzago@cray.com>
Reviewed-on: http://review.whamcloud.com/11167
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5389Reviewed-by: NJohn L. Hammond <john.hammond@intel.com>
Reviewed-by: NAndreas Dilger <andreas.dilger@intel.com>
Signed-off-by: NOleg Drokin <oleg.drokin@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>