diff options
| author | Stefan Popa <stefan.popa@analog.com> | 2018-04-11 14:53:01 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2018-04-15 19:32:20 +0100 |
| commit | 98baf78e6dbee226e6490deafb0e5aca65b861ee (patch) | |
| tree | 939440bdd07c5e23fc01da2724dc4c3b6c6a4abe /drivers | |
| parent | fe642e2dfc5494d3977041136ef16e0aaaf3ada0 (diff) | |
| download | linux-98baf78e6dbee226e6490deafb0e5aca65b861ee.tar.bz2 | |
iio:dac:ad5686: Add AD5672R/76/76R/84R/86R support
The AD5684R/AD5686R are a family of 4 channel DACs with 12-bit, 14-bit and
16-bit precision respectively. The devices come either with a built-in
reference or no built-in reference.
The AD5672R/AD5676/AD5676R are similar, except that they have 8 channels
instead of 4.
Datasheets:
http://www.analog.com/media/en/technical-documentation/data-sheets/AD5672R_5676R.pdf
http://www.analog.com/media/en/technical-documentation/data-sheets/AD5686R_5685R_5684R.pdf
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iio/dac/ad5686.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c index 7a01a09e9d90..9e1a6ba32138 100644 --- a/drivers/iio/dac/ad5686.c +++ b/drivers/iio/dac/ad5686.c @@ -87,9 +87,14 @@ struct ad5686_state { */ enum ad5686_supported_device_ids { + ID_AD5672R, + ID_AD5676, + ID_AD5676R, ID_AD5684, + ID_AD5684R, ID_AD5685R, ID_AD5686, + ID_AD5686R }; static int ad5686_spi_write(struct ad5686_state *st, u8 cmd, u8 addr, u16 val, u8 shift) @@ -293,15 +298,47 @@ static struct iio_chan_spec name[] = { \ AD5868_CHANNEL(3, 8, bits, _shift), \ } +#define DECLARE_AD5676_CHANNELS(name, bits, _shift) \ +static struct iio_chan_spec name[] = { \ + AD5868_CHANNEL(0, 0, bits, _shift), \ + AD5868_CHANNEL(1, 1, bits, _shift), \ + AD5868_CHANNEL(2, 2, bits, _shift), \ + AD5868_CHANNEL(3, 3, bits, _shift), \ + AD5868_CHANNEL(4, 4, bits, _shift), \ + AD5868_CHANNEL(5, 5, bits, _shift), \ + AD5868_CHANNEL(6, 6, bits, _shift), \ + AD5868_CHANNEL(7, 7, bits, _shift), \ +} + +DECLARE_AD5676_CHANNELS(ad5672_channels, 12, 4); +DECLARE_AD5676_CHANNELS(ad5676_channels, 16, 0); DECLARE_AD5686_CHANNELS(ad5684_channels, 12, 4); DECLARE_AD5686_CHANNELS(ad5685r_channels, 14, 2); DECLARE_AD5686_CHANNELS(ad5686_channels, 16, 0); static const struct ad5686_chip_info ad5686_chip_info_tbl[] = { + [ID_AD5672R] = { + .channels = ad5672_channels, + .int_vref_mv = 2500, + .num_channels = 8, + }, + [ID_AD5676] = { + .channels = ad5676_channels, + .num_channels = 8, + }, + [ID_AD5676R] = { + .channels = ad5676_channels, + .int_vref_mv = 2500, + .num_channels = 8, + }, [ID_AD5684] = { .channels = ad5684_channels, .num_channels = 4, + }, + [ID_AD5684R] = { + .channels = ad5684_channels, .int_vref_mv = 2500, + .num_channels = 4, }, [ID_AD5685R] = { .channels = ad5685r_channels, @@ -311,7 +348,11 @@ static const struct ad5686_chip_info ad5686_chip_info_tbl[] = { [ID_AD5686] = { .channels = ad5686_channels, .num_channels = 4, + }, + [ID_AD5686R] = { + .channels = ad5686_channels, .int_vref_mv = 2500, + .num_channels = 4, }, }; @@ -391,10 +432,15 @@ static int ad5686_remove(struct spi_device *spi) } static const struct spi_device_id ad5686_id[] = { + {"ad5672r", ID_AD5672R}, + {"ad5676", ID_AD5676}, + {"ad5676r", ID_AD5676R}, {"ad5684", ID_AD5684}, + {"ad5684r", ID_AD5684R}, {"ad5685", ID_AD5685R}, /* Does not exist */ {"ad5685r", ID_AD5685R}, {"ad5686", ID_AD5686}, + {"ad5686r", ID_AD5686R}, {} }; MODULE_DEVICE_TABLE(spi, ad5686_id); |