Re: [RFC PATCH v2] pinctrl: add helper to expose pinctrl state in debugfs
From: Linus Walleij
Date: Sat Jan 09 2021 - 16:15:32 EST
On Sat, Jan 9, 2021 at 3:55 AM Drew Fustini <drew@xxxxxxxxxxxxxxx> wrote:
> I discussed my use case and this patch on #armlinux earlier this week
> and Alexandre Belloni suggested looking at the pinmux-pins debugfs file.
This sounds reasonable.
> This made me think that a possible solution could be to define a store
> function for pinmux-pins to handle something like "<pin#> <function#>".
> I believe the ability to activate a pin function (or pin group) from
> userspace would satisfy our beagleboard.org use-case.
>
> Does that seem like a reasonable approach?
This sounds like a good approach.
Yours,
Linus Walleij