On 31 October 2017 at 13:47, Viresh Kumar <[email protected]> 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. > > Signed-off-by: Viresh Kumar <[email protected]>
This seems like a reasonable extension to me! Reviewed-by: Ulf Hansson <[email protected]> Kind regards Uffe > --- > 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 203e09fe7698..9c5056fb120f 100644 > --- a/Documentation/devicetree/bindings/opp/opp.txt > +++ b/Documentation/devicetree/bindings/opp/opp.txt > @@ -166,6 +166,12 @@ properties. > "power-domains" property. Also, either all or none of the OPP nodes in an > OPP > table should have it set. > > + > +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. > + > Example 1: Single cluster Dual-core ARM cortex A9, switch DVFS states > together. > > / { > -- > 2.15.0.rc1.236.g92ea95045093 >
