Re: [PATCH v3 00/12] iio: adc: ad7173: add SPI offload support

Andy Shevchenko
2025-07-02T08:04:54Z

On Tue, Jul 01, 2025 at 04:37:48PM -0500, David Lechner wrote:
> Here comes another series for adding SPI offload support to an ADC.
>
> The primary target is AD411x, but since this uses the ad_sigma_delta
> shared module, a lot of this series is focused on that.
>
> To start with, we have some cleanups to the ad_sigma_delta code, so feel
> free to pick these up as they are ready as they generally stand on their
> own.
>
> Then before adding proper SPI offload support, we make use of
> spi_optimize_message() to reduce CPU usage of all users of this driver
> during buffered reads.
>
> Also there is a new dt-binding and driver for a special SPI offload
> trigger FPGA IP core that is used in this particular setup.
>
> Then finally actual SPI offload support is added to the ad_sigma_delta
> module and the ad7173 driver.
>
> This was tested using EVAL-AD4112ARDZ on a DE10-Nano.

This version LGTM,
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

--
With Best Regards,
Andy Shevchenko