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* iio: dpot-dac: DAC driver based on a digital potentiometerPeter Rosin2016-11-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | It is assumed that the dpot is used as a voltage divider between the current dpot wiper setting and the maximum resistance of the dpot. The divided voltage is provided by a vref regulator. .------. .-----------. | | | vref |--' .---. | regulator |--. | | '-----------' | | d | | | p | | | o | wiper | | t |<---------+ | | | | '---' dac output voltage | | '------+------------+ Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: stx104: Add IIO support for the ADC channelsWilliam Breathitt Gray2016-09-031-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | The Apex Embedded Systems STX104 features 16 channels of single-ended (8 channels of true differential) 16-bit analog input. Differential input configuration may be selected via a physical jumper on the device. Similarly, input polarity (unipolar/bipolar) is configured via a physical jumper on the device. Input gain selection is available to the user via software, thus allowing eight possible input ranges: +-10V, +-5V, +-2.5V, +-1.25V, 0 to 10V, 0 to 5V, 0 to 2.5V, and 0 to 1.25V. Four input gain configurations are supported: x1, x2, x4, and x8. This ADC resolution is 16-bits (1/65536 of full scale). Analog input samples are taken on software trigger; neither FIFO sampling nor interrupt triggering is supported by this driver. The Apex Embedded Systems STX104 is primarily an analog-to-digital converter device. The STX104 IIO driver was initially placed in the DAC directory because only the DAC portion of the STX104 was supported at the time. Now that ADC support has been added to the STX104 IIO driver, the driver should be moved to the more appropriate ADC directory. Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: dac: AD8801: add Analog Devices AD8801/AD8803 supportGwenhael Goavec-Merou2016-08-291-0/+1
| | | | | | | | Add support for Analog Devices AD8801/AD8803, 8 channels 8bits, Digital to Analog converters. Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: Add IIO support for the Measurement Computing CIO-DAC familyWilliam Breathitt Gray2016-07-241-0/+1
| | | | | | | | | | | | | | | | | The Measurement Computing CIO-DAC is a family of 16-bit and 12-bit analog output devices. The analog outputs are from AD660BN/AD7237 converters with each output buffered by an OP-27. Voltage ranges are configured via physical jumpers on the device. This driver does not support the devices' simulataneous update mode; the XFER jumper option should be deselected for all analog output channels. This driver provides IIO support for the Measurement Computing CIO-DAC family: CIO-DAC16, CIO-DAC08, and PC104-DAC06. The base port addresses for the devices may be configured via the base array module parameter. Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: dac: Add support for the AD5592R/AD5593R ADCs/DACsPaul Cercueil2016-04-101-0/+3
| | | | | | | | | | | This patch adds support for the AD5592R (spi) and AD5593R (i2c) ADC/DAC/GPIO devices. Signed-off-by: Paul Cercueil <paul.cercueil@analog.com> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: dac: add NXP LPC18xx DAC driverJoachim Eastwood2016-03-121-0/+1
| | | | | | | | | | | | | | | Add base support for the 10-bit DAC peripheral found on NXP LPC18xx/43xx SoCs. This is a minimal driver that does not support DMA or interrupts. User manual with register description can be found on: LPC18xx: www.nxp.com/documents/user_manual/UM10430.pdf LPC43xx: www.nxp.com/documents/user_manual/UM10503.pdf Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: dac: vf610_dac: Add IIO DAC driver for Vybrid SoCSanchayan Maity2016-02-241-0/+1
| | | | | | | | Add driver support for DAC peripheral on Vybrid SoC. Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: Add IIO support for the DAC on the Apex Embedded Systems STX104William Breathitt Gray2016-02-131-0/+1
| | | | | | | | | | | | | The Apex Embedded Systems STX104 is a 16-channel 16-bit analog input and 2-channel 16-bit analog output PC/104 card. The STX104 incorporates a large one mega-sample FIFO. This driver provides IIO support for the 2-channel DAC on the STX104. The base port addresses for the devices may be configured via the "base" module parameter array. Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: add ad5761 DAC driverRicardo Ribalda Delgado2016-01-241-0/+1
| | | | | | | | | | | | | | ad5761 is a 1-channel DAC with configurable output range. The driver uses the regulator interface for its voltage ref. It shares its register layout with ad5761r, ad5721 and ad5721r. Differences: ad5761* are 16 bit, ad5721* are 12 bits. ad57*1r have an internal reference. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: add m62332 DAC driverDmitry Eremin-Solenikov2015-05-171-0/+1
| | | | | | | | | m62332 is a simple 2-channel DAC used on several Sharp Zaurus boards to control LCD voltage, backlight and sound. The driver use regulators to control the reference voltage and enabling/disabling the DAC. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: add support of the max5821Philippe Reynes2014-07-271-0/+1
| | | | | Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: dac: mcp4902/mcp4912/mcp4922 dac driverMichael Welling2014-06-211-0/+1
| | | | | | | | This patch provides an iio device driver for the Microchip MCP49x2 series DACs. Signed-off-by: Michael Welling <mwelling@ieee.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: Add a comment to about alphabetical order to Kconfigs and MakefilesLars-Peter Clausen2013-08-031-0/+1
| | | | | | | | | | | | Keeping Makefile and Kconfig entries in alphabetical order usually works better than just appending new entries at the end, since it reduces the amount of conflicts. This patch adds a comment to the IIO Kconfig and Makefile files to document that the entries should be kept in alphabetical order. Also reorder those entries which weren't in alphabetical order yet. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio:dac: Add support for the AD7303Lars-Peter Clausen2013-06-111-0/+1
| | | | | | | | This patch adds support for the AD7303. The AD7303 is a simple 2 channel 8 bit DAC with an SPI interface. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio:dac: Add support for the ad5449Lars-Peter Clausen2012-10-191-0/+1
| | | | | | | | This patch adds support for the AD5415, AD5426, AD5429, AD5432, AD5439, AD5443 and AD5449 single and dual channel DACs. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio:dac: Add ad5755 driverLars-Peter Clausen2012-09-171-0/+1
| | | | | | | | | | | | | | This patch adds support for the AD5755, AD5755-1, AD5757, AD5735, AD5737 16 and 14 bit quad-channel DACs. The AD5757/AD5737 only have current outputs, but for the AD5755/AD5757 each of the outputs can be configured to either be a voltage or a current output. We only allow to configure this at device probe time since usually this needs to match the external circuitry and should not be changed on the fly. A few trivial formatting changes on merge. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: add mcp4725 I2C DAC driverPeter Meerwald2012-06-121-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | v5: * fix warnings (Jonathan Cameron) v4: * remove unused indio_dev pointer in mcp4725_data (Jonathan Cameron) * use u16 instead of unsigned short in mcp4725_data (Jonathan Cameron) * #include mcp4725.h from linux/iio/dac/ v3: * move from staging to drivers/iio * switch to chan_spec * dev_get_drvdata() -> dev_to_iio_dev() * annotate probe() and remove() with __devinit and __devexit v2 (based on comments from Jonathan Cameron and Lars-Peter Clausen): * did NOT switch to chan_spec yet * rebase to staging-next tree, update iio header locations * dropped dac.h #include, not needed * strict_strtol() -> kstrtol() * call iio_device_unregister() in remove() * everything in one patch Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging:iio: Move DAC drivers out of stagingLars-Peter Clausen2012-06-051-0/+15
The IIO DAC drivers are in a reasonably good shape. They all make use of channel spec and non of them provides non-documented sysfs attributes. Code style should be OK as well, both checkpatch and coccicheck only report trivial issues. So lets move the whole folder out of staging. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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