On Mon, Dec 18, 2017 at 03:51:30PM +0530, Viresh Kumar wrote: > On some platforms the exact frequency or voltage may be hidden from the > OS by the firmware. Allow such configurations to pass magic values in > the "opp-hz" or the "opp-microvolt" properties, which should be > interpreted in a platform dependent way. > > Reviewed-by: Ulf Hansson <[email protected]> > Signed-off-by: Viresh Kumar <[email protected]> > --- > Documentation/devicetree/bindings/opp/opp.txt | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/Documentation/devicetree/bindings/opp/opp.txt > b/Documentation/devicetree/bindings/opp/opp.txt > index 4e4f30288c8b..00a3bdbd0f1f 100644 > --- a/Documentation/devicetree/bindings/opp/opp.txt > +++ b/Documentation/devicetree/bindings/opp/opp.txt > @@ -167,6 +167,12 @@ properties. > functioning of the current device at the current OPP (where this property > is > present). > > + > +On some platforms the exact frequency or voltage may be hidden from the OS by > +the firmware and the "opp-hz" or the "opp-microvolt" properties may contain > +magic values that represent the frequency or voltage in a firmware dependent > +way, for example an index of an array in the firmware.
I'm still not convinced this is a good idea. If you have firmware partially managing things, then I think we should have platform specific bindings or drivers. This is complex enough I'm not taking silence from Stephen as an okay. Rob
