The bus clock and function clock are separated at rk3399,
and others use one clock as the bus clock and function clock.
Signed-off-by: NDavid Wu <david.wu@rock-chips.com>
Reviewed-by: NDouglas Anderson <dianders@chromium.org>
Reviewed-by: NHeiko Stuebner <heiko@sntech.de>
Tested-by: NHeiko Stuebner <heiko@sntech.de>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>