On 19 August 2013 11:46, amit daniel kachhap [off-list ref] wrote:

I meant that something like 2 policies can be registered SCALE_DIRECT/STEPS.
if SCALE_DIRECT is registered than target will be called with exact
frequency. SCALE_STEPS will behave as currently happening. This way
target_index api may not be needed. But looks like Rafael and others
are fine with your approach so you can ignore this :)

 Why wouldn't we need target_index in case of SCALE_DIRECT? All
target_index is doing now is changing platform specific registers to configure
an exact frequency reported by index..