tree d9f13d2e5641d9379c796898782756c50996bbf3
parent 3bccf534f98ddc4962665b68d99f752ea010aacc
author Paul Mundt <lethal@linux-sh.org> 1286132096 +0900
committer Paul Mundt <lethal@linux-sh.org> 1286132096 +0900

sh: pfc: support pinmux deregistration.

Presently the pinmux code is a one-way thing, but there's nothing
preventing an unregistration if no one has grabbed any of the pins.
This will permit us to save a bit of memory on systems that require pin
demux for certain peripherals in the case where registration of those
peripherals fails, or they are otherwise not attached to the system.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>