On 03/09/2025 09:47, Linus Walleij wrote:

On Wed, Sep 3, 2025 at 7:23 AM Matti Vaittinen [off-list ref] wrote:

quoted

Anyways, fast-forward to this day, I don't see it handling valid_mask. I
think it is a must for this device/driver, where pins can be either
GPIOs or ADC inputs.

Why not just add a .init_valid_mask() to
struct gpio_regmap_config so it can just pass that
down to its gpio_chip?

Sigh. I suppose that would technically make sense. (So would allowing 
other IC-specific callbacks ;) ).

OK I don't want to load you with too much extra work for
the driver, but it seems such a small thing for a blocker,
and Michael who wrote the library is really helpful
with extending the code, so consider it!

I suppose I can see how that works out. I am not a fan of maintaining 
the extra code. Thanks for the suggestion.

Yours,
	-- Matti