dt-bindings: add document of Rockchip power domains

This add the necessary binding documentation for the power domains
found on Rockchip SoCs.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Caesar Wang 2015-09-08 14:18:20 +08:00 • committed by Heiko Stuebner
commit d64180fd59