tree 7c3d032c79fabde59020fc1733da7a97f21a8b45
parent 4ccb2c40391e29dddd92c93a8cebba9f57fa019a
author Olliver Schinagl <oliver@schinagl.nl> 1542823526 +0200
committer Jagan Teki <jagan@amarulasolutions.com> 1544201673 +0530

sunxi: pmic_bus: Decrease boot time by not writing duplicate data

When we clear a pmic_bus bit, we do a read-modify-write operation.
We waste some time however, by writing back the exact samea value
that was already set in the chip. Let us thus only do the write
in case data was changed.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Priit Laes <plaes@plaes.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>