[PATCH] gpio: sifive: use the correct register to read output values

[Linus Walleij]

On Fri, Feb 4, 2022 at 2:02 PM Niklas Cassel <Niklas.Cassel at wdc.com> wrote:

> From: Niklas Cassel <niklas.cassel at wdc.com>

Hi Niklas, long time no C!

> Setting the output of a GPIO to 1 using gpiod_set_value(), followed by
> reading the same GPIO using gpiod_get_value(), will currently yield an
> incorrect result.
>
> This is because the SiFive GPIO device stores the output values in reg_set,
> not reg_dat.
>
> Supply the flag BGPIOF_READ_OUTPUT_REG_SET to bgpio_init() so that the
> generic driver reads the correct register.
>
> Signed-off-by: Niklas Cassel <niklas.cassel at wdc.com>

Looks like a straight-forward fix so:
Reviewed-by: Linus Walleij <linus.walleij at linaro.org>

Yours,
Linus Walleij