Add open drain support in order to share requested IRQ line between
st_lsm6dsx device and other peripherals
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add device tree bindings for Measurement-Specialties MS5637, MS5805, MS5837 and MS8607 pressure & temperature sensor
Signed-off-by: NManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add of_match_table for Measurement-Specialties MS5637, MS5805, MS5837 and MS8607 pressure & temperature sensor
Signed-off-by: NManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add device tree bindings for Measurement-Specialties HTU21 temperature & humidity sensor and humidity part of MS8607 sensor
Signed-off-by: NManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add of_match_table for Measurement-Specialties htu21 temperature & humidity sensor and humidity part of MS8607 sensor
Signed-off-by: NManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Clock name has been updated during driver/DT binding review:
https://lkml.org/lkml/2016/12/13/718
Update DT binding doc to reflect this.

Fixes: bf2d8581 (iio: Add bindings for STM32 timer trigger driver)
Signed-off-by: NFabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Added support for suspend/resume functionality for the ADC IP
in sama5d2 SoC.
In order to enter Suspend to ram mode (backup + self refresh mode for
memory), in which the ADC IP is no longer powered, we need to reset the
pins to default state, for the scenario when they are also used for I2C
bus to communicate with the PMIC.
On resume, we need to reconfigure the ADC IP registers and reconfigure the
trigger registers in the case when the suspend procedure is done while
sysfs has the buffer and trigger enabled.
In the case the suspend happens exactly during a software triggered
conversion, the request will time out, because we reset and power down
the ADC.
Signed-off-by: NEugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

In order to add proper device tree support give a more general name
to of_device_id table
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Move st_sensors_of_i2c_probe() in st_sensors_core and rename it in
st_sensors_of_name_probe(). That change is necessary to add device-tree
support in spi code otherwise the rest of the autodetection will fail
since spi->modalias (and indio_dev->name) will be set using compatible
string value that differs from standard sensor name
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Enable multiread by default for LIS3MDL since using I2C interface
the subaddr Msb is used to automatically increase the slave address
during multiple data read/write. In the same way, using SPI interface,
bit 1 in register address is used to enable auto-increment of the slave
address in multiple read/write.

Fixes: 872e79ad (iio:magn: Add STMicroelectronics magn driver)
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The integration time is controlled by the ATIME register only.  However,
this register is written by i2c_smbus_write_word_data() in write_raw().

We actually don't need to write a subsequent register.  So just use
i2c_smbus_write_byte_data() instead.

Cc: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com>
Acked-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

While the INA226 has a conversion ready flag (CVRF) in the R/W Mask/Enable
register with read-to-clear semantics, the corresponding bit of the INA219
(CNVR) is part of the bus voltage register. The flag is cleared by reading
the power register.
Signed-off-by: NStefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add device tree bindings for Measurement Specialties TSYS01 temperature sensor
Signed-off-by: NManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add of_match_table for Measurement Specialties TSYS01 temperature sensor
Signed-off-by: NManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Added support for the external hardware trigger on pin ADTRG,
integrated the three possible edges into the driver
and created buffer management for data retrieval
Signed-off-by: NEugen Hristev <eugen.hristev@microchip.com>
Acked-by: NLudovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add property for the edge type of the hardware trigger pin ADTRG
Signed-off-by: NEugen Hristev <eugen.hristev@microchip.com>
Acked-by: NRob Herring <robh@kernel.org>
Acked-by: NLudovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

To keep IMX7D_ADC text consistent with other iio/adc entries, add
the vendor name to the driver menu text.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add of_match_table and point it to a list of compatible device tree
device id's.
Signed-off-by: NMichael Stecklein <m-stecklein@ti.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Include datasheet links, add i2c_device_id entries, and update
kconfig help for compatible HDC10xx devices: HDC1000, HDC1008,
HDC1010, HDC1050, and HDC1080.
Signed-off-by: NMichael Stecklein <m-stecklein@ti.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add the bindings for the family of HDC100x sensors.
Signed-off-by: NMichael Stecklein <m-stecklein@ti.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@st.com>
Reviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add proper support for L3GD20H gyroscope sensor. In particular:
- use L3GD20H as device name instead of L3GD20
- fix available full scales
- fix available sample frequencies

Note that the original patch listed first below introduced broken support for
this part.  The second patch drops the support as it didn't work.

This new patch brings in working support.

Fixes: 9444a300 (IIO: Add support for L3GD20H gyroscope)
Fixes: a0657716 ("iio:gyro: bug on L3GD20H gyroscope support")
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add support for the BOSC0200 ACPI device id used on some x86 tablets.
note driver_data is not set to a specific model, driver_data is not
used anyways (instead detection is done on the chip_id reg) and the
2 tablets with a BOSC0200 ACPI device id I've have 2 different chips,
one has a BMA250E, the other a BMA222E.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch fixes the following checkpatch.pl warning:

WARNING: Prefer kmalloc_array over kmalloc with multiply
Signed-off-by: NDenis Petrovic <denis.petrovic@edu.ece.fr>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch replaces several instances where a pointer is compared to NULL
(i.e., `ptr == NULL`) with `!ptr`, which is preferred.
Signed-off-by: NQuytelda Kahja <quytelda@tamalin.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

dprc.h is only used in the mc bus driver so move it together with the
sources thus making it private.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

mc-cmd.h contains some low level functions used to encode and decode
commands to the MC. They are used by the drivers so move them to the
public headers and get rid of the mc-cmd.h header.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

mc-sys.h contains the API to send commands to the MC and is used
by drivers. Move it to the public headers and get rid of the mc-sys.h
header.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Few files using byte order macros but did not explicitly
included the required kernel header, so add it.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

dpmng.h & dpmng.c files expose an API of just one function which is only
used by the bus driver. Move that single API in the bus source as static
and remove the two files.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

All the mc-bus.h contents is only used privately in the bus driver so
move everything to the private header and get rid of the mc-bus.h
header file.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Define dev_is_fsl_mc() and the bus type definition (fsl_mc_bus_type)
are used externally so move them to the public header.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

fsl_mc_msi_create_irq_domain() will is used from the irqchip glue code
so it needs to be in the public headers.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

They are never used outside the source they are implemented in and very
likely never will, so it's safe to make them static.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The function fsl_mc_bus_exists() has a prototype but is never
implemented so delete it from the header file.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

These functions already have their prototypes in fsl-mc-private.h
header file so delete them from mc-bus.h.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

In its current form, the public headers of the mc-bus depend only on a
structure "dprc_obj_desc" defined in dprc.h. Move it to the bus public
header together with its associated defines and, in order to keep the
naming prefixes consistent rename it to "fsl_mc_obj_desc".
This will allow making dprc.h private in future patches.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

These couple of header files are not needed in the source
so remove them.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Stick to one way of checking the return code of strcmp(): use '!'.
This was suggested in a review comment.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Move comparison before the strcmp() in this if statement, and slightly
increase efficiency by not making the strcmp() each time the if gets
evaluated but only when the comparison is true.
This was suggested in a review comment.
Signed-off-by: NLaurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>