iio: dac: ad5686: Add support for AD5674R/AD5679R
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>hifive-unleashed-5.1
Mircea Caprioru
Jonathan Cameron
parent
e717f8c6df
commit
192778fb96
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@ -148,9 +148,9 @@ config AD5686_SPI
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depends on SPI
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select AD5686
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help
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Say yes here to build support for Analog Devices AD5672R, AD5676,
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AD5676R, AD5684, AD5684R, AD5684R, AD5685R, AD5686, AD5686R.
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Voltage Output Digital to Analog Converter.
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Say yes here to build support for Analog Devices AD5672R, AD5674R,
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AD5676, AD5676R, AD5679R, AD5684, AD5684R, AD5684R, AD5685R, AD5686,
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AD5686R Voltage Output Digital to Analog Converter.
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To compile this driver as a module, choose M here: the
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module will be called ad5686.
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@ -1,7 +1,8 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* AD5672R, AD5676, AD5676R, AD5681R, AD5682R, AD5683, AD5683R,
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* AD5684, AD5684R, AD5685R, AD5686, AD5686R
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* AD5672R, AD5674R, AD5676, AD5676R, AD5679R,
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* AD5681R, AD5682R, AD5683, AD5683R, AD5684,
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* AD5684R, AD5685R, AD5686, AD5686R
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* Digital to analog converters driver
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*
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* Copyright 2018 Analog Devices Inc.
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@ -102,8 +103,10 @@ static int ad5686_spi_remove(struct spi_device *spi)
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static const struct spi_device_id ad5686_spi_id[] = {
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{"ad5310r", ID_AD5310R},
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{"ad5672r", ID_AD5672R},
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{"ad5674r", ID_AD5674R},
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{"ad5676", ID_AD5676},
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{"ad5676r", ID_AD5676R},
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{"ad5679r", ID_AD5679R},
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{"ad5681r", ID_AD5681R},
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{"ad5682r", ID_AD5682R},
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{"ad5683", ID_AD5683},
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@ -71,7 +71,7 @@ static ssize_t ad5686_write_dac_powerdown(struct iio_dev *indio_dev,
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int ret;
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struct ad5686_state *st = iio_priv(indio_dev);
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unsigned int val, ref_bit_msk;
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u8 shift;
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u8 shift, address = 0;
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ret = strtobool(buf, &readin);
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if (ret)
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@ -94,6 +94,9 @@ static ssize_t ad5686_write_dac_powerdown(struct iio_dev *indio_dev,
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case AD5686_REGMAP:
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shift = 0;
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ref_bit_msk = 0;
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/* AD5674R/AD5679R have 16 channels and 2 powerdown registers */
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if (chan->channel > 0x7)
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address = 0x8;
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break;
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case AD5693_REGMAP:
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shift = 13;
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@ -107,7 +110,8 @@ static ssize_t ad5686_write_dac_powerdown(struct iio_dev *indio_dev,
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if (!st->use_internal_vref)
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val |= ref_bit_msk;
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ret = st->write(st, AD5686_CMD_POWERDOWN_DAC, 0, val);
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ret = st->write(st, AD5686_CMD_POWERDOWN_DAC,
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address, val >> (address * 2));
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return ret ? ret : len;
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}
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@ -226,10 +230,32 @@ static struct iio_chan_spec name[] = { \
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AD5868_CHANNEL(7, 7, bits, _shift), \
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}
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#define DECLARE_AD5679_CHANNELS(name, bits, _shift) \
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static struct iio_chan_spec name[] = { \
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AD5868_CHANNEL(0, 0, bits, _shift), \
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AD5868_CHANNEL(1, 1, bits, _shift), \
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AD5868_CHANNEL(2, 2, bits, _shift), \
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AD5868_CHANNEL(3, 3, bits, _shift), \
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AD5868_CHANNEL(4, 4, bits, _shift), \
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AD5868_CHANNEL(5, 5, bits, _shift), \
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AD5868_CHANNEL(6, 6, bits, _shift), \
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AD5868_CHANNEL(7, 7, bits, _shift), \
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AD5868_CHANNEL(8, 8, bits, _shift), \
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AD5868_CHANNEL(9, 9, bits, _shift), \
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AD5868_CHANNEL(10, 10, bits, _shift), \
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AD5868_CHANNEL(11, 11, bits, _shift), \
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AD5868_CHANNEL(12, 12, bits, _shift), \
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AD5868_CHANNEL(13, 13, bits, _shift), \
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AD5868_CHANNEL(14, 14, bits, _shift), \
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AD5868_CHANNEL(15, 15, bits, _shift), \
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}
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DECLARE_AD5693_CHANNELS(ad5310r_channels, 10, 2);
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DECLARE_AD5693_CHANNELS(ad5311r_channels, 10, 6);
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DECLARE_AD5676_CHANNELS(ad5672_channels, 12, 4);
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DECLARE_AD5679_CHANNELS(ad5674r_channels, 12, 4);
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DECLARE_AD5676_CHANNELS(ad5676_channels, 16, 0);
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DECLARE_AD5679_CHANNELS(ad5679r_channels, 16, 0);
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DECLARE_AD5686_CHANNELS(ad5684_channels, 12, 4);
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DECLARE_AD5686_CHANNELS(ad5685r_channels, 14, 2);
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DECLARE_AD5686_CHANNELS(ad5686_channels, 16, 0);
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@ -262,6 +288,12 @@ static const struct ad5686_chip_info ad5686_chip_info_tbl[] = {
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.num_channels = 8,
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.regmap_type = AD5686_REGMAP,
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},
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[ID_AD5674R] = {
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.channels = ad5674r_channels,
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.int_vref_mv = 2500,
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.num_channels = 16,
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.regmap_type = AD5686_REGMAP,
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},
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[ID_AD5675R] = {
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.channels = ad5676_channels,
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.int_vref_mv = 2500,
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@ -279,6 +311,12 @@ static const struct ad5686_chip_info ad5686_chip_info_tbl[] = {
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.num_channels = 8,
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.regmap_type = AD5686_REGMAP,
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},
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[ID_AD5679R] = {
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.channels = ad5679r_channels,
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.int_vref_mv = 2500,
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.num_channels = 16,
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.regmap_type = AD5686_REGMAP,
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},
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[ID_AD5681R] = {
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.channels = ad5691r_channels,
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.int_vref_mv = 2500,
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@ -54,9 +54,11 @@ enum ad5686_supported_device_ids {
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ID_AD5311R,
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ID_AD5671R,
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ID_AD5672R,
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ID_AD5674R,
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ID_AD5675R,
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ID_AD5676,
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ID_AD5676R,
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ID_AD5679R,
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ID_AD5681R,
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ID_AD5682R,
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ID_AD5683,
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