Re: [PATCH 2/2] gpio: Add support for SLG7XL45106 I2C GPO expander

[Andy Shevchenko <andy.shevchenko@xxxxxxxxx>]

On Tue, Jun 28, 2022 at 9:13 PM Andy Shevchenko
<andy.shevchenko@xxxxxxxxx> wrote:
>
> On Tue, Jun 28, 2022 at 4:35 PM Shubhrajyoti Datta
> <shubhrajyoti.datta@xxxxxxxxxx> wrote:
> >
> > From: Raviteja Narayanam <raviteja.narayanam@xxxxxxxxxx>
> >
> > Dialog semiconductors SLG7XL45106 is an 8-bit I2C GPO expander.
> > The output port is controlled by a data byte with register
> > address.
>
> 1/ Have you checked if there is a driver that sounds very similar to
> this already upstream?

Actually, why can't pca9570 be amended to support this?

> 2/ Have you tried to use gpio-regmap? Why can it not be used?

Same Q for PCA9570 driver. (Maybe gpio-regmap wasn't existed that time?)

-- 
With Best Regards,
Andy Shevchenko