Messages in this thread | | | Date | Mon, 10 Mar 2014 14:25:43 -0500 | From | Nishanth Menon <> | Subject | Re: [RFC PATCH 3/6] PM / Voltagedomain: introduce voltage domain driver support |
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On 03/10/2014 01:01 PM, Mark Brown wrote: > On Mon, Mar 10, 2014 at 12:41:05PM -0500, Nishanth Menon wrote: > >> The only other options are: >> a) Abstract it at a higher level at "user drivers", since they are >> aware of the sequencing needs - but this partially defeats the >> purpose, unless ofcourse, we do a tricky implementation such as: >> clk a, b, c -> prenotifiers in a, postnotifiers in c (which as you >> mentioned is a little trickier to get right). >> b) introduce a higher level generic dvfs function[1] which does not >> seem very attractive either. > >> Any other suggestions other than limiting the usage(and documenting it >> so) and hoping for a future evolution to take this into consideration? > > Something might be doable with telling the clock API about maintianing > ratios between clocks? I do think we should have an idea where we'd go > with such requirements, even if we don't currently handle it, so that we > can hopefully avoid another round of refactoring everything but it > doesn't seem 100% essential, just very nice to have. > Mike, Any suggestions about the above? could we use composite clocks in some manner here(even though I think the original intent of the same was not the same)?
-- Regards, Nishanth Menon
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