spi: spi-orion: add runtime PM support

Add trivial runtime PM support.  This will only be of benefit on SoCs
where the clock to the SPI interface can be shut down.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Russell King 2014-06-21 12:22:37 +01:00 • committed by Mark Brown
commit 5c6786945b