Re: [PATCH] gpio: arizona: Correct handling for reading input GPIOs

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Wed, Apr 5, 2017 at 5:50 PM, Charles Keepax
<ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

> The GPIO register is cached since all the configuration resides within
> it, however, this means for input GPIOs the driver will not return the
> actual state but the last value written to the register cache.
>
> To correct this in the case of reading an input GPIO resume the CODEC
> and drop the cache for the input register to ensure an actual hardware
> read takes place.
>
> Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>

Looks totally reasonable.
Patch applied.

Yours,
Linus Walleij
--
To unsubscribe from this list: send the line "unsubscribe linux-gpio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html