On Wed, 10 Jan 2024 14:28:39 -0600 David Lechner <dlechner@xxxxxxxxxxxx> wrote: > This series is adding a new driver for the Analog Devices Inc. AD7380, > AD7381, AD7383, and AD7384 ADCs. These chips are part of a family of > simultaneous sampling SAR ADCs. > > One quirk of these chips is that since they are simultaneous sampling, > they have multiple SPI data output lines that allow transferring two > data words (one for each input channel) at the same time. So a new > generic devicetree binding is added to describe this sort of SPI bus > configuration. > > To keep things simple, the initial driver implementation only supports > the 2-channel differential chips listed above. There are also 4-channel > differential chips and 4-channel single-ended chips in the family that > can be added later. > > Furthermore, the driver is just implementing basic support for capturing > data. Additional features like interrupts, CRC, etc. can be added later. > > Also, FYI, this driver will also be used as the base for an upcoming > series adding AXI SPI Engine offload support for these chips along with > [1]. > > This work is being done by BayLibre and on behalf of Analog Devices Inc. > hence the maintainers are @analog.com. > > [1]: https://lore.kernel.org/linux-spi/20231204-axi-spi-engine-series-2-v1-0-063672323fce@xxxxxxxxxxxx/ Series applied to the togreg branch of iio.git though that is only pushed out as testing for now as I'll be rebasing it on rc1 once available. Jonathan
