[PATCH v3 1/5] clk: hisi: refine parameter checking for init

[Stephen Boyd]

On 08/03, Leo Yan wrote:
> *of_iomap()* will check the device node pointer, and if the pointer is
> NULL it will return error code. So refine clock's init flow by checking
> the device node with this simple way; and polish a little for the print
> out message.
> 
> Signed-off-by: Leo Yan <leo.yan at linaro.org>
> ---

Applied to clk-next

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