iio: frequency: adf4371: Add support for ADF4372 PLL
The ADF4372 is part of the same family with ADF4371, the main difference is that it has only 3 channels instead of 4, as the frequency quadrupler is missing. As a result, the ADF4372 allows frequencies from 62.5 MHz to 16 GHz to be generated. Datasheet: Link: https://www.analog.com/media/en/technical-documentation/data-sheets/adf4372.pdf Signed-off-by: Stefan Popa <stefan.popa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Родитель
c444e956a2
Коммит
13a0af411a
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@ -39,12 +39,12 @@ config ADF4350
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module will be called adf4350.
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module will be called adf4350.
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config ADF4371
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config ADF4371
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tristate "Analog Devices ADF4371 Wideband Synthesizer"
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tristate "Analog Devices ADF4371/ADF4372 Wideband Synthesizers"
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depends on SPI
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depends on SPI
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select REGMAP_SPI
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select REGMAP_SPI
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help
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help
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Say yes here to build support for Analog Devices ADF4371
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Say yes here to build support for Analog Devices ADF4371 and ADF4372
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Wideband Synthesizer. The driver provides direct access via sysfs.
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Wideband Synthesizers. The driver provides direct access via sysfs.
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To compile this driver as a module, choose M here: the
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To compile this driver as a module, choose M here: the
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module will be called adf4371.
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module will be called adf4371.
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@ -87,6 +87,11 @@ enum {
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ADF4371_CH_RF32
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ADF4371_CH_RF32
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};
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};
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enum adf4371_variant {
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ADF4371,
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ADF4372
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};
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struct adf4371_pwrdown {
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struct adf4371_pwrdown {
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unsigned int reg;
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unsigned int reg;
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unsigned int bit;
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unsigned int bit;
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@ -140,6 +145,11 @@ static const struct regmap_config adf4371_regmap_config = {
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.read_flag_mask = BIT(7),
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.read_flag_mask = BIT(7),
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};
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};
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struct adf4371_chip_info {
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unsigned int num_channels;
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const struct iio_chan_spec *channels;
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};
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struct adf4371_state {
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struct adf4371_state {
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struct spi_device *spi;
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struct spi_device *spi;
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struct regmap *regmap;
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struct regmap *regmap;
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@ -152,6 +162,7 @@ struct adf4371_state {
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* writes.
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* writes.
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*/
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*/
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struct mutex lock;
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struct mutex lock;
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const struct adf4371_chip_info *chip_info;
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unsigned long clkin_freq;
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unsigned long clkin_freq;
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unsigned long fpfd;
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unsigned long fpfd;
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unsigned int integer;
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unsigned int integer;
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@ -429,6 +440,17 @@ static const struct iio_chan_spec adf4371_chan[] = {
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ADF4371_CHANNEL(ADF4371_CH_RF32),
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ADF4371_CHANNEL(ADF4371_CH_RF32),
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};
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};
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static const struct adf4371_chip_info adf4371_chip_info[] = {
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[ADF4371] = {
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.channels = adf4371_chan,
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.num_channels = 4,
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},
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[ADF4372] = {
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.channels = adf4371_chan,
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.num_channels = 3,
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}
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};
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static int adf4371_reg_access(struct iio_dev *indio_dev,
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static int adf4371_reg_access(struct iio_dev *indio_dev,
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unsigned int reg,
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unsigned int reg,
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unsigned int writeval,
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unsigned int writeval,
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@ -537,12 +559,13 @@ static int adf4371_probe(struct spi_device *spi)
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st->regmap = regmap;
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st->regmap = regmap;
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mutex_init(&st->lock);
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mutex_init(&st->lock);
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st->chip_info = &adf4371_chip_info[id->driver_data];
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indio_dev->dev.parent = &spi->dev;
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indio_dev->dev.parent = &spi->dev;
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indio_dev->name = id->name;
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indio_dev->name = id->name;
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indio_dev->info = &adf4371_info;
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indio_dev->info = &adf4371_info;
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indio_dev->modes = INDIO_DIRECT_MODE;
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indio_dev->modes = INDIO_DIRECT_MODE;
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indio_dev->channels = adf4371_chan;
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indio_dev->channels = st->chip_info->channels;
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indio_dev->num_channels = ARRAY_SIZE(adf4371_chan);
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indio_dev->num_channels = st->chip_info->num_channels;
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st->clkin = devm_clk_get(&spi->dev, "clkin");
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st->clkin = devm_clk_get(&spi->dev, "clkin");
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if (IS_ERR(st->clkin))
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if (IS_ERR(st->clkin))
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@ -568,13 +591,15 @@ static int adf4371_probe(struct spi_device *spi)
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}
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}
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static const struct spi_device_id adf4371_id_table[] = {
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static const struct spi_device_id adf4371_id_table[] = {
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{ "adf4371", 0 },
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{ "adf4371", ADF4371 },
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{ "adf4372", ADF4372 },
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{}
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{}
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};
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};
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MODULE_DEVICE_TABLE(spi, adf4371_id_table);
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MODULE_DEVICE_TABLE(spi, adf4371_id_table);
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static const struct of_device_id adf4371_of_match[] = {
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static const struct of_device_id adf4371_of_match[] = {
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{ .compatible = "adi,adf4371" },
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{ .compatible = "adi,adf4371" },
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{ .compatible = "adi,adf4372" },
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{ },
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{ },
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};
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};
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MODULE_DEVICE_TABLE(of, adf4371_of_match);
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MODULE_DEVICE_TABLE(of, adf4371_of_match);
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