Re: [PATCH v4 06/13] iio: dac: ds4424: use device match data for chip info

[Oleksij Rempel]

On Tue, Feb 03, 2026 at 12:03:23PM +0200, Andy Shevchenko wrote:
> On Tue, Feb 03, 2026 at 10:34:26AM +0100, Oleksij Rempel wrote:
> > Refactor the driver to use device match data instead of checking ID enums
> > in a switch statement.
> > 
> > Define a `ds4424_chip_info` structure to hold variant-specific attributes
> > (currently just the channel count) and attach it directly to the I2C and
> > OF device ID tables.
> > 
> > Use `client->name` instead of `id->name` to decouple the probe function
> > from the legacy `i2c_device_id` structure.
> > 
> > This simplifies the probe function and makes it easier to add support for
> > new variants like DS4402/DS4404.
> 
> ...
> 
> > -	indio_dev->name = id->name;
> 
> > +	indio_dev->name = client->name;
> 
> Isn't this an ABI breakage?

I can't confirm it.

before all patches:
root@DistroKit:~ cat /sys/bus/iio/devices/iio:device3/name 
ds4424

after:
root@DistroKit:~ cat /sys/bus/iio/devices/iio:device3/name 
ds4424



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