[RFC PATH 2/2] gpio: starfive-jh7100: Add StarFive JH7100 GPIO driver

[Drew Fustini]

On Fri, Jul 02, 2021 at 07:03:19PM +0300, Andy Shevchenko wrote:
> On Thu, Jul 1, 2021 at 3:23 AM Drew Fustini <drew at beagleboard.org> wrote:
> >
> > Add GPIO driver for the StarFive JH7100 SoC [1] used on the
> > BeagleV Starlight JH7100 board [2].
> >
> > [1] https://github.com/starfive-tech/beaglev_doc/
> > [2] https://github.com/beagleboard/beaglev-starlight
> 
> > Signed-off-by: Emil Renner Berthing <kernel at esmil.dk>
> > Signed-off-by: Huan Feng <huan.feng at starfivetech.com>
> > Signed-off-by: Drew Fustini <drew at beagleboard.org>
> 
> Seems some Co-developed-by are missing.

Thank you for suggesting this.  Huan Feng originally wrote the driver.
Emil and I have made some changes to reorganize and clean it up for
submission.

Do you think all three of us should list Co-developed-by: for our names
in addition to the SOB?

> Brief look into the code brings the Q. Can't you utilize gpio-regmap
> here? Why not?

Michael Walle asked about this yesterday and it was my first time
looking at regmap and gpio-regmap.  I've been reading the code and it
does look like I should try convert this driver over to using
gpio-regmap.

The open question in my mind is how to handle the interrupt type (edge
trigged on positive or negative, level triggered on high or low).
Hopefully I can find some other examples that can help me think about
how to do that correctly.

Thanks,
Drew