Re: [PATCH v2 0/3] pinctrl: lpc18xx: support pint setup

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Fri, Feb 26, 2016 at 4:44 AM, Joachim Eastwood <manabian@xxxxxxxxx> wrote:

> Selecting which GPIOs that are associated with PINT irq lines is done in
> pinctrl hw block (SCU). The pinctrl device usually deals with the pin
> namespace but PINT selecction is done in the GPIO namespace. Fortunatly
> there is a function that can translate from the pin namespace to the
> GPIO namespace.
>
> Selection is done in DT with the "nxp,gpio-pin-interrupt" property.
> Example usage;
> &pinctrl {
>         gpio_joystick_1_cfg {
>                 pins =  "p9_0";
>                 function = "gpio";
>                 nxp,gpio-pin-interrupt = <0>;
>                 input-enable;
>                 bias-disable;
>         };
> };
>
> The reason for not doing this irq line selection on the fly in the
> irqchip driver is that the registers lie in the SCU hw block not in the
> PINT block and DT gives you more control since you can select a specific
> irq lines easily.

I am a bit split but I assume that you as maintainer of this hardware
is in a better position to assign the routing of the IRQs in a convenient
way for this platform.

So, patches applied as you can see.

Yours,
Linus Walleij
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