Re: [PATCH v8 11/17] iio: adc: ad7944: add support for SPI offload

From: Jonathan Cameron
Date: Tue Feb 11 2025 - 14:33:54 EST


On Mon, 10 Feb 2025 13:09:59 -0600
David Lechner <dlechner@xxxxxxxxxxxx> wrote:

> On 2/7/25 2:09 PM, David Lechner wrote:
> > Add support for SPI offload to the ad7944 driver. This allows reading
> > data at the max sample rate of 2.5 MSPS.
> >
>
> ...
>
> > ---
> > drivers/iio/adc/Kconfig | 1 +
> > drivers/iio/adc/ad7944.c | 291 ++++++++++++++++++++++++++++++++++++++++++++---
> > 2 files changed, 276 insertions(+), 16 deletions(-)
> >
> > diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
> > index a3e8ac569ce4c6b6b30b48acb265d530aa98e89c..995b9cacbaa964d26424346120c139858f93cdcd 100644
> > --- a/drivers/iio/adc/Kconfig
> > +++ b/drivers/iio/adc/Kconfig
> > @@ -360,6 +360,7 @@ config AD7923
> > config AD7944
> > tristate "Analog Devices AD7944 and similar ADCs driver"
> > depends on SPI
> > + select SPI_OFFLOAD
> > select IIO_BUFFER
>
> I missed adding
>
> select IIO_BUFFER_DMAENGINE
>
Tweaked and pushed out.

> Closes: https://lore.kernel.org/oe-kbuild-all/202502082251.NuHT15R7-lkp@xxxxxxxxx/
>
> > select IIO_TRIGGERED_BUFFER
> > help
>
>