Re: [PATCH 3/3] mfd: arizona: Update GPIO binding for newly supported flag

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Tue, May 16, 2017 at 5:31 PM, Charles Keepax
<ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

> Update the device tree binding to show that the new GPIO_SLEEP flags are
> now supported in the flags field of the GPIO binding for Arizona
> devices.
>
> Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
(...)
>    - gpio-controller : Indicates this device is a GPIO controller.
>    - #gpio-cells : Must be 2. The first cell is the pin number and the
> -    second cell is used to specify optional parameters (currently unused).
> +    second cell is used to specify optional parameters, the following flags
> +    are supported:
> +      "GPIO_SLEEP_MAY_LOOSE_OUTPUT" the output of this GPIO does not need to
> +      be maintained whilst the CODEC is in low power mode.

Your gpio controller most definately support more options than that,
for example open drain.

But it is supposed to be a generic property so instead patch gpio.txt
and reference that file from here.

Yours,
Linus Walleij
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