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Initial support for ST LPS22HH pressure sensor. Datasheet:
http://www2.st.com/resource/en/datasheet/lps22hh.pdf
Features:
* pressure, temperature data and timestamping channels
* sampling frequency selection [1..200] Hz
* interrupt based trigger
* over I2C or SPI interface
Signed-off-by: mario tesi <mario.tesi@st.com>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The accelerometer's power supply could be controllable on some
platforms, such as i.MX6Q-SABRESD board, the mma8451's power supplies
are controlled by a GPIO fixed regulator, need to make sure the
regulators are enabled before any communication with mma8451, this
patch adds vdd/vddio regulator operation support.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Acked-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The accelerometer's power supplies could be controllable on some
platforms, add property "vdd/vddio" power supply to let device tree
to pass phandles to the regulators to driver.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The light sensor's power supply could be controllable by regulator
on some platforms, such as i.MX6Q-SABRESD board, the light sensor
isl29023's power supply is controlled by a GPIO fixed regulator,
need to make sure the regulator is enabled before any operation of
sensor, this patch adds vcc regulator operation support.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The magnetometer's power supplies could be controllable on some platforms,
such as i.MX6Q-SABRESD board, the mag3110's power supplies are controlled
by a GPIO fixed regulator, need to make sure the regulators are enabled
before any communication with mag3110, this patch adds vdd/vddio regulator
operation support.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The AD5674R/AD5679R are low power, 16-channel, 12-/16-bit buffered voltage
output digital-to-analog converters (DACs). They include a 2.5 V internal
reference (enabled by default).
These devices are very similar to AD5684R/AD5686R, except that they have 16
channels.
Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Introduce the TI ADS124S08 and the ADS124S06 ADC
devices from TI. The ADS124S08 is the 12 channel ADC
and the ADS124S06 is the 6 channel ADC device
These devices share a common datasheet:
http://www.ti.com/lit/gpn/ads124s08
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Adding binding documentation for Texas Instruments ADS124S08
and ADS124S06 ADC.
S08 is a 12 channel ADC
S06 is a 6 channel ADC
Datesheet can be found here:
http://www.ti.com/lit/gpn/ads124s08
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The lsb calculation is not masking the correct bits from the user input.
Subtract 1 from (1 << offset) to correctly set up the mask to be applied
to user input.
The lsb register stores its value starting at the bit 7 position.
adt7316_store_DAC() currently assumes the value is at the other end of the
register. Shift the lsb value before storing it in a new variable lsb_reg,
and write this variable to the lsb register.
Fixes: 35f6b6b86ede ("staging: iio: new ADT7316/7/8 and ADT7516/7/9 driver")
Signed-off-by: Jeremy Fertic <jeremyfertic@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The calculation of the current dac value is using the wrong bits of the
dac lsb register. Create two macros to shift the lsb register value into
lsb position, depending on whether the dac is 10 or 12 bit. Initialize
data to 0 so, with an 8 bit dac, the msb register value can be bitwise
ORed with data.
Fixes: 35f6b6b86ede ("staging: iio: new ADT7316/7/8 and ADT7516/7/9 driver")
Signed-off-by: Jeremy Fertic <jeremyfertic@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The adt7316/7 and adt7516/7 have the option to output voltage proportional
to temperature on dac a and/or dac b. The default dac resolution in this
mode is 8 bits with the dac high resolution option enabling 10 bits. None
of these settings affect dacs c and d. Remove the "1 (12 bits)" output from
the show function since that is not an option for this mode. Return
"1 (10 bits)" if the device is one of the above mentioned chips and the dac
high resolution mode is enabled.
In the store function, the driver currently allows the user to write to the
ADT7316_DA_HIGH_RESOLUTION bit regardless of the device in use. Add a check
to return an error in the case of an adt7318 or adt7519. Remove the else
statement that clears the ADT7316_DA_HIGH_RESOLUTION bit. Instead, clear it
before conditionally enabling it, depending on user input. This matches the
typical pattern in the driver when an attribute is a boolean.
Fixes: 35f6b6b86ede ("staging: iio: new ADT7316/7/8 and ADT7516/7/9 driver")
Signed-off-by: Jeremy Fertic <jeremyfertic@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The value of dac_bits is used in adt7316_show_DAC() and adt7316_store_DAC(),
and it should be either 8, 10, or 12 bits depending on the device in use. The
driver currently only assigns a value to dac_bits in
adt7316_store_da_high_resolution(). The purpose of the dac high resolution
option is not to change dac resolution for normal operation. Instead, it
is specific to an optional feature where one or two of the four dacs can
be set to output voltage proportional to temperature. If the user chooses
to set dac a and/or dac b to output voltage proportional to temperature,
the da_high_resolution attribute can optionally be enabled to use 10 bit
resolution rather than the default 8 bits. This is only available on the
10 and 12 bit dac devices. If the user attempts to read or write dacs a
or b under these settings, the driver's current behaviour is to return an
error. Dacs c and d continue to operate normally under these conditions.
With the above in mind, remove the dac_bits assignments from this function
since the value of dac_bits as used in the driver is not dependent on this
dac high resolution option.
Since the dac_bits assignments discussed above are currently the only ones
in this driver, the default value of dac_bits is 0. This results in incorrect
calculations when the dacs are read or written in adt7316_show_DAC() and
adt7316_store_DAC(). To correct this, assign a value to dac_bits in
adt7316_probe() to ensure correct operation as soon as the device is
registered and available to userspace.
Fixes: 35f6b6b86ede ("staging: iio: new ADT7316/7/8 and ADT7516/7/9 driver")
Signed-off-by: Jeremy Fertic <jeremyfertic@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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In function xadc_probe, xadc_write_adc_reg can return an error value
when write fails. The fix checks for the return value consistent with
other invocations of the latter function.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Meson8b and Meson8m2 use the same logic to convert the ADC register
value to celsius, which is different from Meson8:
- Meson8 has different multiplier and divider values
- Meson8 uses a 4-bit TSC (temperature sensor coefficient) which fits
into the 4-bit field in the MESON_SAR_ADC_DELTA_10 register:
MESON_SAR_ADC_DELTA_10_TS_C_MASK. Meson8b and Meson8m2 have a 5-bit
TSC which requires writing the upper-most bit into the
MESON_HHI_DPLL_TOP_0[9] register from the HHI register area.
This adds support for the temperature sensor on the Meson8b and Meson8m2
SoCs by implementing the logic to write the upper-most TSC bit into the
HHI register area. The SoC-specific values (temperature_trimming_bits,
temperature_multiplier, temperature_divider) are added - these simply
integrate into the existing infrastructure (which was implemented for
Meson8) and thus require no further changes to the existing temperature
calculation logic.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Meson8b and Meson8m2 use a 5-bit wide TSC (temperature sensor
coefficient). The SAR ADC registers however can only store (the lower)
4 bits. The fifth (upper-most) bit is stored inside the
MESON_HHI_DPLL_TOP_0[9] register from the HHI register area.
This adds a syscon property to the HHI register area so a driver can
fetch the HHI register map and store the fifth TSC bit in there.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Document support for AD7606 Analog to Digital Converter.
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Move ad7606 ADC driver out of staging and into the mainline.
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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* Placed includes in alphabetical order
* Added brackets around num and mask through out for AD760X_CHANNEL
* Used single line comments where needed
* Removed extra lines and spaces
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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This patch replaces the use of a polling ring buffer with a threaded
interrupt.
Enabling the buffer sets the CONVST signal to high. When the rising edge
of the CONVST is applied, BUSY signal goes logic high and transitions low
at the end of the entire conversion process. The falling edge of the BUSY
signal triggers the interrupt.
ad7606_trigger_handler() is used as bottom half of the poll function.
It reads data from the device and stores it in the internal buffer.
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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This patch replaces the license text at the top of ad7606 driver files
and instead adds SPDX GPL-2.0 license identifier.
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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There is no point in having three menu entries that can be selected
individually. Instead, the SPI and parallel interfaces should select
AD7606.
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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If ad9523_write() fails, indio_dev may get incorrect data. The fix
inserts a check for the return value of ad9523_write(), and it fails,
returns an error.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Self cleaning is especially useful in cases where sensor undergoes
frequent power on/off cycles. In such scenarios it is recommended to
turn self cleaning at least once per week in order to maintain reliable
measurements.
Self cleaning is activated by writing 1 to a dedicated attribute.
Internal fan accelerates to its maximum speed and keeps spinning
for about 10 seconds blowing out accumulated dust.
Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Tested-by: Andreas Brauchli <andreas.brauchli@sensirion.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Fixes gcc '-Wunused-but-set-variable' warning:
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c: In function 'st_lsm6dsx_shub_read_reg':
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c:108:41: warning:
variable 'hub_settings' set but not used [-Wunused-but-set-variable]
It never used since introduction in commit c91c1c844ebd ("iio: imu: st_lsm6dsx:
add i2c embedded controller support")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The driver does not have a struct of_device_id table, but supported
devices are registered via Device Trees. This patch adds and OF device
ID table.
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The 'adi' vendor prefix needs to be added to conversion-start, range,
first-data and oversampling-ratio properties.
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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When looking for the available scale or oversampling ratio, it is better
to use the find_closest() macro. This simplifies the code and also does
not require an exact value to be entered from the user space.
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Switch to devm version of request_irq, iio_triggered_buffer_setup,
iio_device_register. To avoid potential ordering issues in probe,
devm_add_action_or_reset() is used for the regulator_disable(). This
simplifies the code and decreases the chance of bugs.
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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This patch replaces the use of wait_event_interruptible() with
wait_for_completion_timeout() when reading the result of a single
conversion. In this way, if the interrupt never occurs, the program will
not remain blocked.
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add device tree support for Sensirion SGP30/SGPC3 gas sensors.
Signed-off-by: Andreas Brauchli <andreas.brauchli@sensirion.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Support Sensirion SGP30 and SGPC3 multi-pixel I2C gas sensors
Supported Features:
* Indoor Air Quality (IAQ) concentrations for
- tVOC (in_concentration_voc_input)
- CO2eq (in_concentration_co2_input) - SGP30 only
IAQ concentrations are periodically read out by a background thread
to allow the sensor to maintain its internal baseline.
* Gas concentration signals
- Ethanol (in_concentration_ethanol_raw)
- H2 (in_concentration_h2_raw) - SGP30 only
https://www.sensirion.com/file/datasheet_sgp30
https://www.sensirion.com/file/datasheet_sgpc3
Signed-off-by: Andreas Brauchli <andreas.brauchli@sensirion.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add ethanol and H2 gas modifiers:
* IIO_MOD_ETHANOL
* IIO_MOD_H2
Signed-off-by: Andreas Brauchli <andreas.brauchli@sensirion.com>
Acked-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add device tree support for Sensirion SPS30 particulate
matter sensor.
Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add support for Sensirion SPS30 particulate matter sensor.
Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Measuring particulate matter in ug / m3 (micro-grams per cubic meter)
is de facto standard. Existing air quality sensors usually follow
this convention and are capable of returning measurements using
this unit.
IIO currently does not offer suitable channel type for this
type of measurements hence this patch adds this.
In addition, extra modifiers are introduced used for distinguishing
between fine pm1, pm2p5 and coarse pm4, pm10 particle measurements, i.e
IIO_MOD_PM1, IIO_MOD_PM25 and IIO_MOD_PM4, IIO_MOD_PM10.
pmX consists of particles with aerodynamic diameter less or equal to
X micrometers.
Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Acked-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Initialization is unnecessary when the variable is written before it is
read. There were some occasions in which the driver would initialize `ret'
during declaration without need.
Signed-off-by: Hardik Singh Rathore <hardiksingh.k@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The ad7280_attr_init function has been split into more specific
functions to increase the code readability.
Signed-off-by: Slawomir Stepien <sst@poczta.fm>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The ad7280_channel_init function has been split into more specific
functions to increase the code readability.
The setting of channel's scan_type.shift to 0, has been removed, since
it is the default value.
Signed-off-by: Slawomir Stepien <sst@poczta.fm>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add a devicetree documentation for the ad5933 and ad5934 impedance
converter, network analyzer.
Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Signed-off-by: Gabriel Capella <gabriel@capella.pro>
Co-Developed-by: Gabriel Capella <gabriel@capella.pro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Add the option to specify the external clock (MCLK) using the clock
framework.
Also remove the old platform data structure.
Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Signed-off-by: Gabriel Capella <gabriel@capella.pro>
Co-developed-by: Gabriel Capella <gabriel@capella.pro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Set a single voltage regulator for all voltage references.
Remove voltage reference value from default platafrom data struct.
Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Signed-off-by: Gabriel Capella <gabriel@capella.pro>
Co-developed-by: Gabriel Capella <gabriel@capella.pro>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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ADT7316 driver no more uses platform data and hence use device tree
data instead of platform data for assigning irq_type field and
implement this in adt7316_irq_setup function.
Switch case figures out the type of irq and if it's the default case
then assign the default value to the irq_type i.e.
irq_type = IRQF_TRIGGER_LOW
Move devm_request_threaded_irq() and assignment of chip->config1
into the adt7316_setup_irq() to unclutter the code in probe function.
Signed-off-by: Shreeya Patel <shreeya.patel23498@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Initialization is unnecessary when the variable is written before it is
read. There were some occasions in which the driver would initialize `ret'
during declaration without need.
Purely a cosmetic change with no functional impact.
Signed-off-by: Hardik Singh Rathore <hardiksingh.k@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Change LDCA to LDAC.
Signed-off-by: Jeremy Fertic <jeremyfertic@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Based on the output of adt7316_show_all_DAC_update_modes() and
adt7316_show_DAC_update_mode(), adt7316_store_DAC_update_mode() should
expect the user to enter an integer input from 0 to 3. The user input is
currently expected to account for the actual bit positions in the register.
For example, choosing option 3 would require a write of 0x30 (actually 48
since it expects base 10). To address this inconsistency, create a shift
macro to be used in the valid input check as well as the calculation for
the register write.
Signed-off-by: Jeremy Fertic <jeremyfertic@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The option to allow the external vref to bypass the reference buffer is
only available for adt7316/7/8. Remove the attributes for adt751x as
well as the chip->id checks from the show and store functions.
Signed-off-by: Jeremy Fertic <jeremyfertic@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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With adt7516/7/9, internal vref is available for dacs a and b, dacs c and
d, or all dacs. The driver doesn't currently support internal vref for all
dacs. Change the else if to an if so both bits are checked rather than
just one or the other.
Signed-off-by: Jeremy Fertic <jeremyfertic@gmail.com>
Fixes: 35f6b6b86ede ("staging: iio: new ADT7316/7/8 and ADT7516/7/9 driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The dac internal vref settings are part of the ldac config register rather
than the dac config register. Change the variable being used so the read
returns the correct result.
Whilst a fix, it is for a driver in heavy churn so do not backport
to stable without taking considerable care and testing.
Signed-off-by: Jeremy Fertic <jeremyfertic@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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ADT7316_DA_EN_VIA_DAC_LDCA is set when the dac and ldac registers are being
used to update the dacs instead of the ldac pin. ADT7516_SEL_AIN3 is an adc
input that shares the ldac pin. Only set these bits if an ldac pin is not
being used.
This could be backported to stable, but note there are various
other bugs that probably make that a waste of time.
Signed-off-by: Jeremy Fertic <jeremyfertic@gmail.com>
Fixes: 35f6b6b86ede ("staging: iio: new ADT7316/7/8 and ADT7516/7/9 driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Change two register addresses and one bit definition to match the
datasheet.
Note that there are many issues in this driver so I would
not suggest backporting these fixes to stable trees.
Signed-off-by: Jeremy Fertic <jeremyfertic@gmail.com>
Fixes: 35f6b6b86ede ("staging: iio: new ADT7316/7/8 and ADT7516/7/9 driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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