Re: [RFC] pinctrl: sh-pfc: only use dummy states for non-DT platforms

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Tue, Mar 8, 2016 at 5:21 AM, Wolfram Sang <wsa@xxxxxxxxxxxxx> wrote:
>
>> Perhaps the of_have_populated_dt() check should be moved inside
>> pinctrl_provide_dummies()?
>
> Hmm, the kernel-doc for pinctrl_provide_dummies() says "Usually this
> function is called by platforms without pinctrl driver support...".
> Is "without pintctrl" == "no DT"? Linus?

The primary example is a platform with one pin controller and
two identical GPIO controllers, one of the GPIO controllers
is using a pin control backend.

Since the GPIO driver has to call pinctrl_request_gpio() etc,
it needs something to hold on to if there is no backing pin
controller for one of them.

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