diff options
| author | Ricardo Ribalda Delgado <ricardo@ribalda.com> | 2019-02-04 13:44:41 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-02-09 18:46:02 +0000 |
| commit | 77c5a7f5c123a25f693506b9a347ad3acf3c6bbf (patch) | |
| tree | f0d5c0c9db0a8e80e65fb26511c517ac16b7eebe /drivers/iio | |
| parent | e9517dffd1d5adf575a4ad9a231a68d48dcc5e6b (diff) | |
| download | linux-77c5a7f5c123a25f693506b9a347ad3acf3c6bbf.tar.bz2 | |
iio: adc: ad7476: Add support for TI ADS786X ADCs
Add support for Texas Instruments ADS7866, ADS7867 and ADS7868
8/10/12 bit Single channel ADC.
Datasheet: http://www.ti.com/lit/ds/symlink/ads7868.pdf
Signed-off-by: Ricardo Ribalda Delgado <ricardo@ribalda.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/Kconfig | 11 | ||||
| -rw-r--r-- | drivers/iio/adc/ad7476.c | 20 |
2 files changed, 27 insertions, 4 deletions
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index d61d939880b6..5debc67df70a 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -57,14 +57,17 @@ config AD7298 module will be called ad7298. config AD7476 - tristate "Analog Devices AD7476 and similar 1-channel ADCs driver" + tristate "Analog Devices AD7476 1-channel ADCs driver and other similar devices from AD an TI" depends on SPI select IIO_BUFFER select IIO_TRIGGERED_BUFFER help - Say yes here to build support for Analog Devices AD7273, AD7274, AD7276, - AD7277, AD7278, AD7475, AD7476, AD7477, AD7478, AD7466, AD7467, AD7468, - AD7495, AD7910, AD7920, AD7920 SPI analog to digital converters (ADC). + Say yes here to build support for the following SPI analog to + digital converters (ADCs): + Analog Devices: AD7273, AD7274, AD7276, AD7277, AD7278, AD7475, + AD7476, AD7477, AD7478, AD7466, AD7467, AD7468, AD7495, AD7910, + AD7920. + Texas Instruments: ADS7866, ADS7867, ADS7868. To compile this driver as a module, choose M here: the module will be called ad7476. diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c index 0549686b9ef8..76747488044b 100644 --- a/drivers/iio/adc/ad7476.c +++ b/drivers/iio/adc/ad7476.c @@ -59,6 +59,9 @@ enum ad7476_supported_device_ids { ID_ADC081S, ID_ADC101S, ID_ADC121S, + ID_ADS7866, + ID_ADS7867, + ID_ADS7868, }; static irqreturn_t ad7476_trigger_handler(int irq, void *p) @@ -157,6 +160,8 @@ static int ad7476_read_raw(struct iio_dev *indio_dev, #define AD7940_CHAN(bits) _AD7476_CHAN((bits), 15 - (bits), \ BIT(IIO_CHAN_INFO_RAW)) #define AD7091R_CHAN(bits) _AD7476_CHAN((bits), 16 - (bits), 0) +#define ADS786X_CHAN(bits) _AD7476_CHAN((bits), 12 - (bits), \ + BIT(IIO_CHAN_INFO_RAW)) static const struct ad7476_chip_info ad7476_chip_info_tbl[] = { [ID_AD7091R] = { @@ -209,6 +214,18 @@ static const struct ad7476_chip_info ad7476_chip_info_tbl[] = { .channel[0] = ADC081S_CHAN(12), .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1), }, + [ID_ADS7866] = { + .channel[0] = ADS786X_CHAN(12), + .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1), + }, + [ID_ADS7867] = { + .channel[0] = ADS786X_CHAN(10), + .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1), + }, + [ID_ADS7868] = { + .channel[0] = ADS786X_CHAN(8), + .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1), + }, }; static const struct iio_info ad7476_info = { @@ -314,6 +331,9 @@ static const struct spi_device_id ad7476_id[] = { {"adc081s", ID_ADC081S}, {"adc101s", ID_ADC101S}, {"adc121s", ID_ADC121S}, + {"ads7866", ID_ADS7866}, + {"ads7867", ID_ADS7867}, + {"ads7868", ID_ADS7868}, {} }; MODULE_DEVICE_TABLE(spi, ad7476_id); |