tree e64e3c3e55f6609fb143996229c3aa9c265e367d
parent 0414855fdc4a40da05221fc6062cccbc0c30f169
author Benoit Cousson <bcousson@baylibre.com> 1393593125 +0100
committer Mike Turquette <mturquette@linaro.org> 1394088075 -0800

clk: shmobile: rcar-gen2: Use kick bit to allow Z clock frequency change

The Z clock frequency change is effective only after setting the kick
bit located in the FRQCRB register.
Without that, the CA15 CPUs clock rate will never change.

Fix that by checking if the kick bit is cleared and enable it to make
the clock rate change effective. The bit is cleared automatically upon
completion.

Signed-off-by: Benoit Cousson <bcousson+renesas@baylibre.com>
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>