This patch updates the DT bindings for ADC in exynos-adc.txt with the
syscon phandle to the ADC nodes.
Signed-off-by: NNaveen Krishna Chatradhi <ch.naveen@samsung.com>
To: devicetree@vger.kernel.org
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch updates the IIO based ADC driver to use syscon and regmap
APIs to access and use PMU registers instead of remapping the PMU
registers in the driver.
Signed-off-by: NNaveen Krishna Chatradhi <ch.naveen@samsung.com>
To: linux-iio@vger.kernel.org
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Some IIO devices do not use the triggers. This patch makes trigger setting
conditional so generic_buffer can be used when triggers are disabled.
Signed-off-by: NKarol Wrona <k.wrona@samsung.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NGeorge McCollister <george.mccollister@gmail.com>
Acked-by: NHartmut Knaack <knaack.h@gmx.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The current ADC is peripheral of Qualcomm SPMI PMIC chips. It has
16 bits resolution and register space inside PMIC accessible across
SPMI bus.

The driver registers itself through IIO interface.
Signed-off-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

In si7020_read_raw() the pointer to the i2c client was obtained as second level
pointer, although a simple pointer is appropriate.
Signed-off-by: NHartmut Knaack <knaack.h@gmx.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

When reading temperature or humidity values, a shift of two bits to the right
needs to be applied, and only for the humidity channel a mask of the lower
12 bits needs to be applied. This reduces code repetition.
During probe, i2c_set_clientdata() was used, although its counterpart was not,
so drop it.
Signed-off-by: NHartmut Knaack <knaack.h@gmx.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

When #iio-cells is greater than '0', the driver could provide
a custom of_xlate function that reads the *args* and returns
the appropriate index in registered IIO channels array.

Add simple translation function, suitable for the most 1:1
mapped channels in IIO chips, and use it when driver did not
provide custom implementation.
Signed-off-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Reviewed-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch adds the missing IIO modifiers in event_is_known function
and iio_modifier_names vector.

Additionally, it removes duplicate name entries of IIO_MOD_LIGHT_BOTH
and IIO_MOD_LIGHT_IR in iio_modifier_names.
Signed-off-by: NRoberta Dobrescu <roberta.dobrescu@gmail.com>
Reviewed-by: NDaniel Baluta <daniel.baluta@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch adds documentation for RGBC in_intensity_*_hardwaregain.
There is at least one user for these, ADJD-S311-CR999 digital color sensor
driver.
Signed-off-by: NRoberta Dobrescu <roberta.dobrescu@gmail.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch adds ABI documentation entries for in_humidityrelative_offset
and in_humidityrelative_scale, since there is at least one user for these,
Si7005 humidity and temperature sensor driver.
Signed-off-by: NRoberta Dobrescu <roberta.dobrescu@gmail.com>
Reviewed-by: NDaniel Baluta <daniel.baluta@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The proper way to divide two signed 64-bit values is to use div64_s64.
Signed-off-by: NVlad Dogaru <vlad.dogaru@intel.com>
Reported-by: Nkbuild test robot <fengguang.wu@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Minimal implementation, can read temperature and data using direct mode.

Datasheet available at
<http://ae-bst.resource.bosch.com/media/products/dokumente/bmp280/BST-BMP280-DS001-09.pdf>
Signed-off-by: NVlad Dogaru <vlad.dogaru@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NVlad Dogaru <vlad.dogaru@intel.com>
Reviewed-by: NDaniel Baluta <daniel.baluta@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

There is no need to pass a 'fake' return value when platform_get_irq() fails.

Propagate the real error instead.

While at it, only consider negative numbers returned by platform_get_irq()
as error.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: Soeren Andersen <san at rosetechnology.dk>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch adds support to the Industrial IO subsystem
for the Silicon Labs Si7013/20/21 Relative Humidity and
Temperature Sensors.

Website: http://www.silabs.com/products/sensors/humidity-sensors/Pages/si7013-20-21.aspx

These are i2c devices which measure relative humidity
and temperature and all use the same protocol. The
Si7013 has an additional input with programmable
linearization which is not supported because that's
complicated and I didn't need it.
Signed-off-by: NDavid Barksdale <dbarksdale@uplogix.com>

--
Changes since v1:
* Renamed to si7020 and replaced Si701x/2x with Si7013/20/21.
* Removed unneeded mutex.
* Pre-computed floating-point constant expressions.
* Removed address_list and I2C_CLASS_HWMON.

Changes since v2:
* Return correct raw sensor values.
* Rename dev variable to indio_dev.
* Issue a software reset command during probe.
* Un-broke string literal.

Changes since v3:
* enum changed to #define
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

No need to call the SIMPLE_DEV_PM_OPS() macro in several lines.

It can fit into the 80-column range.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

If clk_prepare_enable() fails we should disable the regulator that was
previously enabled.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

There is no need to pass the error clock code to the variable 'ret'.

Just return the error directly.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NDenis Ciocca <denis.ciocca@st.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch fix pressure data variable name. Usually pdata name
it is used for platform data.
Signed-off-by: NDenis Ciocca <denis.ciocca@st.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NDenis Ciocca <denis.ciocca@st.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NDenis Ciocca <denis.ciocca@st.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NDenis Ciocca <denis.ciocca@st.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NDenis Ciocca <denis.ciocca@st.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch change structure name and related variables names.
Signed-off-by: NDenis Ciocca <denis.ciocca@st.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add documentation for input current raw sysfs attribute.
Signed-off-by: NJacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Older Rockchip SoCs, at least the rk3066, used a slightly modified saradc
for temperature measurements. This so called tsadc does not contain any
active parts like temperature interrupts and only supports polling the
current temperature. The returned voltage can then be converted by a
suitable thermal driver to and actual temperature and used for thermal
handling.
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Acked-by: NHartmut Knaack <knaack.h@gmx.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Vybrid ADC peripheral includes a temperature sensor
which is connected to channel number 26. This patch
adds support for the sensor. The raw value is read
and the temperature calculated in milli degree Celsius,
which is returned using IIO_CHAN_INFO_PROCESSED option.
Signed-off-by: NSanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The else clause in the conditional of lis3l02dq_data_rdy_trig_poll()
does not make consistent use of braces with the rest of the
conditional.  Fix this coding style problem by removing the
unnecessary conditional altogether.
Signed-off-by: NChris Ruffin <cmruffin@gmail.com>
Acked-by: NHartmut Knaack <knaack.h@gmx.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This fixes the following checkpatch.pl warning:
WARNING: __constant_htons should be htons
Signed-off-by: NMahati Chamarthy <mahati.chamarthy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This fixes the following checkpatch.pl warning:
WARNING: else is not generally useful after a break or return.

While at it, remove new line for symmetry with the rest of the code.
Signed-off-by: NCatalina Mocanu <catalina.mocanu@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes "quoted string split across lines" checkpatch.pl
warning in ethernet.c
Signed-off-by: NGulsah Kose <gulsah.1004@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes "Missing a blank line after declarations" checkpatch.pl warning in
ethernet.c
Signed-off-by: NGulsah Kose <gulsah.1004@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This fixes the following checkpatch.pl warning:
WARNING: __constant_cpu_to_le16 should be cpu_to_le16
Additionally, it removes the space between function name and (.
Signed-off-by: NRoberta Dobrescu <roberta.dobrescu@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes these warning messages found by checkpatch.pl:
WARNING: please, no space before tabs.
Signed-off-by: NAybuke Ozdemir <aybuke.147@gmail.com>
Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes these error messages found by checkpatch.pl:
ERROR: "foo* bar" should be "foo *bar"
Signed-off-by: NAybuke Ozdemir <aybuke.147@gmail.com>
Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This fixes checkpatch.pl warning:
WARNING: void function return statements are not generally useful
Signed-off-by: NAybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix checkpatch.pl issues with missing a blank
line after declarations in cxd2099.c
Signed-off-by: NAybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>