| Message ID | 20240923101206.3753-1-antoniu.miclaus@analog.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | *** Add support for AD485x DAS Family *** | expand |
On Mon, Sep 23, 2024 at 01:10:17PM +0300, Antoniu Miclaus wrote: > Add support for AD485X fully buffered, 8-channel simultaneous sampling, > 16/20-bit, 1 MSPS data acquisition system (DAS) with differential, wide > common-mode range inputs. > > Some particularities: > 1. softspan - the devices support multiple softspans which are represented in iio > through offset/scale. The current handling implies changing both > the scale and the offset separately via IIO, therefore in order to > properly set the softspan, each time the offset changes the softspan > is set to the default value. And only after changing also the scale > the desired softspan is set. This is the approach we are suggesting > since we need the softspan configurable from userspace and not from > devicetree. > > 2. packet format - Data provided on the CMOS and LVDS conversion data output buses > are packaged into eight channel packets. This is currently handled > as extended info. Thanks for the series! Quick note: *** in the Subject was also meant to be removed, but it's fine as long as it's a cover letter and git send-email does its job.
Add support for AD485X fully buffered, 8-channel simultaneous sampling, 16/20-bit, 1 MSPS data acquisition system (DAS) with differential, wide common-mode range inputs. Some particularities: 1. softspan - the devices support multiple softspans which are represented in iio through offset/scale. The current handling implies changing both the scale and the offset separately via IIO, therefore in order to properly set the softspan, each time the offset changes the softspan is set to the default value. And only after changing also the scale the desired softspan is set. This is the approach we are suggesting since we need the softspan configurable from userspace and not from devicetree. 2. packet format - Data provided on the CMOS and LVDS conversion data output buses are packaged into eight channel packets. This is currently handled as extended info. Antoniu Miclaus (7): iio: backend: add API for interface get iio: backend: add support for data size set iio: adc: adi-axi-adc: add interface type iio: adc: adi-axi-adc: set data format dt-bindings: iio: adc: add ad458x iio: adc: ad485x: add ad485x driver Documentation: ABI: testing: ad485x: add ABI docs .../ABI/testing/sysfs-bus-iio-adc-ad485x | 14 + .../bindings/iio/adc/adi,ad485x.yaml | 82 ++ drivers/iio/adc/Kconfig | 12 + drivers/iio/adc/Makefile | 1 + drivers/iio/adc/ad485x.c | 1061 +++++++++++++++++ drivers/iio/adc/adi-axi-adc.c | 44 + drivers/iio/industrialio-backend.c | 45 + include/linux/iio/backend.h | 13 + 8 files changed, 1272 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-adc-ad485x create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad485x.yaml create mode 100644 drivers/iio/adc/ad485x.c