[PATCH] clk: rockchip: validity should be checked prior to clock rate change

[Heiko Stuebner]

Am Dienstag, 8. November 2016, 17:10:14 CET schrieb Elaine Zhang:
> If validity is not checked prior to clock rate change, clk_set_rate(
> cpu_clk, unsupported_rate) will return success, but the real clock rate
> change operation is prohibited in post clock change event. Alough post
> clock change event will report error due to unsupported clock rate is
> set, but this error message is ignored by clock framework.
> 
> Signed-off-by: Elaine Zhang <zhangqing at rock-chips.com>
> Signed-off-by: Rocky Hao <rocky.hao at rock-chips.com>

after Elaine clarified that the line mentioning Rocky was actually a tested-by, 
applied to my clock branch


Thanks
Heiko