combined ambient light (two channels) and proximity sensor with I2C
interface; the ALS channels are visible+IR and IR

datasheet is here
http://optoelectronics.liteon.com/upload/download/DS86-2012-0006/P_100_LTR-501ALS-01_PrelimDS_ver1.1.pdf

v3:
* fix use of sizeof in _read_als()
v2: (thanks to Lars-Peter Clausen)
* cannot use devm_iio_device_register() due to cleanup order in _remove()
* mutex around data wait/read
* turn info message in _probe() into check for part number
* change copyright year to 2014
Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Reviewed-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>.  Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

len variable became obsolete with
iio_push_to_buffers_with_timestamp()
Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

len variable become obsolete with
iio_push_to_buffers_with_timestamp()
Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add Capella Microsystem CM32181 Ambient Light Sensor IIO driver.
This driver will convert raw data to lux value under open-air
condition. Change the calibscale based on the cover material.
Signed-off-by: NKevin Tsai <ktsai@capellamicro.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

'cm36651_of_match' is always compiled in. Hence the
helper macro is not needed.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

IIO_ST is going away as it is a pain to maintain.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

IIO_ST is going away as it is a pain to maintain.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

A return value of callback have been changed to IIO_VAL_INT.
If not IIO_VAL_INT, driver will print wrong value(*_read_int_time).

A follow up patch will deal with a related bug in the new event handling
code.
Signed-off-by: NBeomho Seo <beomho.seo@samsung.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Now that all drivers have been converted to the new event config interface we
can remove for the legacy event config interface. Also drop the '_new' suffix
for the event config interface callbacks, since those are the only callbacks
now.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Switch the cm36651 driver to the new IIO event config interface as the old one
is going to be removed.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Cc: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Fixes the following warnings from sparse:
	drivers/iio/light/vcnl4000.c:88:16: warning: cast to restricted __be16
	drivers/iio/light/vcnl4000.c:88:16: warning: cast to restricted __be16
	drivers/iio/light/vcnl4000.c:88:16: warning: cast to restricted __be16
	drivers/iio/light/vcnl4000.c:88:16: warning: cast to restricted __be16
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

drivers/built-in.o: In function `gp2ap020a00f_thresh_event_handler':
powercap_sys.c:(.text+0x15f90c): undefined reference to `irq_work_queue'
make[1]: *** [vmlinux] Error 1
make[1]: Target `uImage' not remade because of errors.
make: *** [sub-make] Error 2
make: Target `uImage' not remade because of errors.

You need the IRQ work support, but GP2AP020A00F is not selecting this
symbol.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

devm_iio_device_register simplifies the code.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add Device Tree support for the TSL2563 driver,
document the binding and add AMS-TAOS Inc. to the
list of vendor prefixes.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Acked-by: NKumar Gala <galak@codeaurora.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

A number of Properties that can be applied to Data Fields are per data
field basis or for all data fields. Adding sensitivity field for all
als fields, which is most commonly used in currently available
sensor hubs.
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

We can't store the trigger instance created by iio_trigger_alloc, in
trig field of iio_device structure. This needs to be stored in the
driver private data. Othewise it can result in crash during module
unload. Hence created a trig_ptr in the common data structure
for each HID sensor IIO driver and storing here.
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The if check is redundant as the value obtained from
iio_device_register() is already in the required format.
Hence return the function directly.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch adds a new driver for Capella CM36651 proximity and RGB sensor.
Signed-off-by: NBeomho Seo <beomho.seo@samsung.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Cc: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Switch the apds9300 driver to the new IIO event config interface as the old one
is going to be removed.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Switch the tsl2563 driver to the new IIO event config interface as the old one
is going to be removed.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Switch the gp2ap020a00f driver to the new IIO event config interface as the old
one is going to be removed.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Cc: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Makes the code a bit shorter and less ugly.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Cc: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Makes the code a bit shorter and less ugly.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Makes the code a bit shorter and less ugly.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

dev_to_iio_dev() is a false friend
Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Now that iio_push_to_buffers() takes a void pointer for the data parameter we
can remove those casts to u8*.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

and drop obsolete #define
Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add a new driver for the ambient light/proximity sensor
device. The driver exposes three channels: light_clear
light_ir and proximity. It also supports triggered buffer,
high and low ambient light threshold event and proximity
detection events.
Signed-off-by: NJacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

chip has four 16-bit channels for red, green, blue, clear color
intensity; driver supports the TCS3x7x family of devices and was
tested with a TCS34725 chip; further information here:
http://www.ams.com/eng/Products/Light-Sensors/Color-Sensor/TCS34725

v2 (thanks to Jonathan Cameron):
* drop dynamic buffer allocation, buffer is in tcs3472_data
* limit sysfs output to PAGE_SIZE
* check val2 == 0 when writing CALIBSCALE
Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Cc: Jon Brenner <jon.brenner@ams.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

driver for the TSL4531 family of 16-bit I2C ambient light
sensors; information is here:
http://www.ams.com/eng/Products/Light-Sensors/Ambient-Light-Sensor-ALS/TSL45315

the chip offers simple lux output

v3 (thanks Lars-Peter Clausen):
* add mutex to when updating integration time
* fix chip ID checking
* code cleanups
v2:
* rename to tsl4351
* use INT_TIME
Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

using word reads, no need for HI/LO register #defines
Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

IIO_VAL_INT_PLUS_MICRO is the default, no need to return it explicitly
Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Acked-by: Nsrinivas pandruvada <srinivas.pandruvada@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

forgot to convert channel index to data register
Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>