bus: sunxi-rsb: Implement runtime power management

Gate the clock to save power while the controller is idle.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
This commit is contained in:
Samuel Holland 2021-01-03 05:06:35 -06:00 • committed by Chen-Yu Tsai
commit 4a0dbc12e6