On Mon, May 05, 2014 at 06:45:28PM +1000, Benjamin Herrenschmidt wrote:
> On Sun, 2014-05-04 at 14:28 +0200, Rafael J. Wysocki wrote:

> > In my opinion, device drivers should not be concerned about that
> > really.
> > The layers of code above them (bus types etc.) should, but not drivers
> > themselves, because that makes it difficult to use the same driver
> > for the same piece of hardware on two systems with different firmware
> > interfaces.

> Only for standardized resource types, such as mmio ranges or interrupts.

> Anything else is absolutely in the domain of competence of the driver
> and I would argue *only* in the domain of competence of the driver.

> This is a dirty enough table, don't invite a 3rd party to it :-)

Right - boring and easy stuff is boring and easy but that's not all the
world and we need to acknowledge that.