Re: [PATCH v2 0/2] pinctrl: Intel Cherryview/Braswell support

Linus Walleij
2014-11-06T19:30:25Z

On Tue, Nov 4, 2014 at 8:04 PM, Mika Westerberg
<mika.westerberg@linux.intel.com> wrote:

> We still need to account the fact that BIOS is supposed to configure the
> pins in advance. The pinctrl mappings are just for refining that, like
> muxing out the SPI pins instead of GPIOs and so on.

Pinctrl currently has no real way of reading out the state from the
hardware and presenting it as a selected group+function combination,
it only knows what has been selected intrinsically with the system,
so some enhancements may be needed to make pinctrl reflect
the state when booting.

Yours,
Linus Walleij