Messages in this thread | | | Date | Fri, 16 Oct 2015 11:32:27 +0530 | From | Viresh Kumar <> | Subject | Re: [PATCH 01/16] PM / OPP: Add 'supply-names' binding |
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On 15-10-15, 17:22, Stephen Boyd wrote: > I'm lost why we need this property at all. What happened to using > > opp-microvolt-0 = <1 2 3>; > opp-microvolt-1 = <1>; > opp-microvolt-2 = <3 4 5>; > etc.
Perhaps you are confusing this with the bindings we came up for picking right voltage levels based on the cuts/version of the hardware we are running on. The problem that Lee Jones mentioned and that can be used in your case as well.
> That seems to avoid any problem with 3 vs. 1 element properties > combined into one large array.
That's not the problem I was trying to solve here.
> Having supply-names seems too > brittle and would tie us to a particular OPP user's decision to > call supplies by some name.
No. The name has to match the <name>-supply property present in the device's node, that's why we need this property :)
> Also, I've seen devices that are split across two power domains. > These devices aren't CPUs, but they are other devices including > L2 caches. So we're going to need either multiple regulator > support or multiple "power domain at a particular performance > levels" support somehow.
Right, that's a good example of why we need multi-regulator support :)
-- viresh
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