[RFC PATCH] clk: add extension API

[Stephen Boyd]

On 5/29/2012 2:58 AM, Peter De Schrijver wrote:
> Add an extension API for clocks. This allows clocktypes to provide extensions
> for features which are uncommon and cannot be easily mapped onto normal clock
> framework concecpts. eg: resetting blocks, configuring clock phase etc.

This seems rather generic. Why not add more specific APIs/concepts like
clk_reset(), clk_set_phase(), etc.? If they don't map, maybe we should
make them map.

At the least it should be documented so that people know what it should
be used for.

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