Re: [PATCH v5 4/4] iio: adc: ad4080: add support for AD4880 dual-channel ADC

From: Jonathan Cameron

Date: Sat Mar 07 2026 - 06:58:35 EST


On Thu, 5 Mar 2026 13:37:30 +0200
Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx> wrote:

> Add support for the AD4880, a dual-channel 20-bit 40MSPS SAR ADC with
> integrated fully differential amplifiers (FDA).
>
> The AD4880 has two independent ADC channels, each with its own SPI
> configuration interface. The driver uses spi_new_ancillary_device() to
> create an additional SPI device for the second channel, allowing both
> channels to share the same SPI bus with different chip selects.
>
> Reviewed-by: David Lechner <dlechner@xxxxxxxxxxxx>
> Reviewed-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx>
This LGTM.

If nothing else comes up in review, I can make the code movement I suggested
in patch 2 as a tweak whilst applying rather than needing a v6.

Jonathan