| Message ID | 20190128094851.3975-1-ricardo@ribalda.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3] iio: adc: ad7476: Add support for TI ADS786X ADCs | expand |
On Mon, Jan 28, 2019 at 11:49 AM Ricardo Ribalda Delgado <ricardo@ribalda.com> wrote: > > 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 > > Cc: Alexandru Ardelean <ardeleanalex@gmail.com> > Signed-off-by: Ricardo Ribalda Delgado <ricardo@ribalda.com> > --- > v3: Changes by Alexandru Ardelean <ardeleanalex@gmail.com> > > - Modify Kconfig to clarify that the chip is not from AD, but from TI > > drivers/iio/adc/Kconfig | 6 ++++-- > drivers/iio/adc/ad7476.c | 20 ++++++++++++++++++++ > 2 files changed, 24 insertions(+), 2 deletions(-) > > diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig > index f9354e5ee65c..2d3442252e32 100644 > --- a/drivers/iio/adc/Kconfig > +++ b/drivers/iio/adc/Kconfig > @@ -57,14 +57,16 @@ 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). > + AD7495, AD7910, AD7920, AD7920. SPI analog to digital converters (ADC). > + And for Texas Instrumments ADS7866, ADS7867, ADS7868. SPI analog to Typo: Instrumments -> Instruments > + digital converters (ADC). I would break it into a table-like format. I didn't see if there is a common/recommended way of doing things for these drivers. But something like: 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 Funny thing: I just noticed that the AD7920 was listed twice. > > 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); > -- > 2.20.1 >
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index f9354e5ee65c..2d3442252e32 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -57,14 +57,16 @@ 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). + AD7495, AD7910, AD7920, AD7920. SPI analog to digital converters (ADC). + And for Texas Instrumments ADS7866, ADS7867, ADS7868. SPI analog to + digital converters (ADC). 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);
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 Cc: Alexandru Ardelean <ardeleanalex@gmail.com> Signed-off-by: Ricardo Ribalda Delgado <ricardo@ribalda.com> --- v3: Changes by Alexandru Ardelean <ardeleanalex@gmail.com> - Modify Kconfig to clarify that the chip is not from AD, but from TI drivers/iio/adc/Kconfig | 6 ++++-- drivers/iio/adc/ad7476.c | 20 ++++++++++++++++++++ 2 files changed, 24 insertions(+), 2 deletions(-)