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@xxxxxxxxxx> --- drivers/iio/frequency/Kconfig | 6 +++--- drivers/iio/frequency/adf4371.c | 31 ++++++++++++++++++++++++++++--- 2 files changed, 31 insertions(+), 6 deletions(-) diff --git a/drivers/iio/frequency/Kconfig b/drivers/iio/frequency/Kconfig index e4a921f..353914b 100644 --- a/drivers/iio/frequency/Kconfig +++ b/drivers/iio/frequency/Kconfig @@ -39,12 +39,12 @@ config ADF4350 module will be called adf4350. config ADF4371 - tristate "Analog Devices ADF4371 Wideband Synthesizer" + tristate "Analog Devices ADF4371/ADF4372 Wideband Synthesizers" depends on SPI select REGMAP_SPI help - Say yes here to build support for Analog Devices ADF4371 - Wideband Synthesizer. The driver provides direct access via sysfs. + Say yes here to build support for Analog Devices ADF4371 and ADF4372 + Wideband Synthesizers. The driver provides direct access via sysfs. To compile this driver as a module, choose M here: the module will be called adf4371. diff --git a/drivers/iio/frequency/adf4371.c b/drivers/iio/frequency/adf4371.c index d8c414b..f874219 100644 --- a/drivers/iio/frequency/adf4371.c +++ b/drivers/iio/frequency/adf4371.c @@ -87,6 +87,11 @@ enum { ADF4371_CH_RF32 }; +enum adf4371_variant { + ADF4371, + ADF4372 +}; + struct adf4371_pwrdown { unsigned int reg; unsigned int bit; @@ -140,6 +145,11 @@ static const struct regmap_config adf4371_regmap_config = { .read_flag_mask = BIT(7), }; +struct adf4371_chip_info { + unsigned int num_channels; + const struct iio_chan_spec *channels; +}; + struct adf4371_state { struct spi_device *spi; struct regmap *regmap; @@ -152,6 +162,7 @@ struct adf4371_state { * writes. */ struct mutex lock; + const struct adf4371_chip_info *chip_info; unsigned long clkin_freq; unsigned long fpfd; unsigned int integer; @@ -429,6 +440,17 @@ static const struct iio_chan_spec adf4371_chan[] = { ADF4371_CHANNEL(ADF4371_CH_RF32), }; +static const struct adf4371_chip_info adf4371_chip_info[] = { + [ADF4371] = { + .channels = adf4371_chan, + .num_channels = 4, + }, + [ADF4372] = { + .channels = adf4371_chan, + .num_channels = 3, + } +}; + static int adf4371_reg_access(struct iio_dev *indio_dev, unsigned int reg, unsigned int writeval, @@ -537,12 +559,13 @@ static int adf4371_probe(struct spi_device *spi) st->regmap = regmap; mutex_init(&st->lock); + st->chip_info = &adf4371_chip_info[id->driver_data]; indio_dev->dev.parent = &spi->dev; indio_dev->name = id->name; indio_dev->info = &adf4371_info; indio_dev->modes = INDIO_DIRECT_MODE; - indio_dev->channels = adf4371_chan; - indio_dev->num_channels = ARRAY_SIZE(adf4371_chan); + indio_dev->channels = st->chip_info->channels; + indio_dev->num_channels = st->chip_info->num_channels; st->clkin = devm_clk_get(&spi->dev, "clkin"); if (IS_ERR(st->clkin)) @@ -568,13 +591,15 @@ static int adf4371_probe(struct spi_device *spi) } static const struct spi_device_id adf4371_id_table[] = { - { "adf4371", 0 }, + { "adf4371", ADF4371 }, + { "adf4372", ADF4372 }, {} }; MODULE_DEVICE_TABLE(spi, adf4371_id_table); static const struct of_device_id adf4371_of_match[] = { { .compatible = "adi,adf4371" }, + { .compatible = "adi,adf4372" }, { }, }; MODULE_DEVICE_TABLE(of, adf4371_of_match); -- 2.7.4
