[PATCH v5 1/6] clk: add of_clk_get_parent_rate function

[Stephen Boyd]

On 02/04/15 16:55, Ray Jui wrote:
> Sometimes a clock needs to know the rate of its parent before itself is
> registered to the framework. An example is that a PLL may need to
> initialize itself to a specific VCO frequency, before registering to the
> framework. The parent rate needs to be known, for PLL multipliers and
> divisors to be configured properly.
>
> Introduce helper function of_clk_get_parent_rate, which can be used to
> obtain the parent rate of a clock, given a device node and index.
>
> Signed-off-by: Ray Jui <rjui at broadcom.com>

Reviewed-by: Stephen Boyd <sboyd at codeaurora.org>

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