Re: [PATCH v2 01/12] ARM: Orion: DT support for IRQ and GPIO Controllers

Hi Thomas

Yes. I am not sure yet how to describe those in the DT, or even if it
is actually useful to describe them. Wouldn't it be simpler to just
leave to the user of the GPIO to use a GPIO that's appropriate for its
usage, i.e not use a GPO when input is needed?

We assume the hardware designer has got the basic hardware right. Its
not going to work otherwise.

What we are trying to detect is a DT author making a typo, assigning a
gpio-key to a GPO pin, for example. The current MPP scheme will detect
this sort of error and issue a warning to the kernel logs.

	 Andrew