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SubjectRe: [RFC PATH 2/2] gpio: starfive-jh7100: Add StarFive JH7100 GPIO driver
On Thu, Jul 1, 2021 at 8:39 AM Michael Walle <michael@walle.cc> wrote:
> Am 2021-07-01 02:20, schrieb Drew Fustini:
> > 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@esmil.dk>
> > Signed-off-by: Huan Feng <huan.feng@starfivetech.com>
> > Signed-off-by: Drew Fustini <drew@beagleboard.org>
>
> Could this driver use GPIO_REGMAP and REGMAP_IRQ? See
> drivers/gpio/gpio-sl28cpld.c for an example.

To me it looks just memory-mapped?

Good old gpio-mmio.c (select GPIO_GENERIC) should
suffice I think.

Drew please look at drivers/gpio/gpio-ftgpio010.c for an example
of GPIO_GENERIC calling bgpio_init() in probe().

Yours,
Linus Walleij

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