On Tue, 7 May 2019 at 19:04, Rob Herring <r...@kernel.org> wrote: > > +- devfreq-events : phandles of the PPMU events used by the controller. > > +- samsung,syscon-chipid : phandle of the ChipID used by the controller. > > +- samsung,syscon-clk : phandle of the clock register set used by the > > controller. > > Looks like a hack. Can't you get this from the clocks property? What is > this for?
Hi Rob, Lukasz uses these two syscon regmaps to read certain registers. For chipid he reads it to check the size of attached memory (only 2 GB version is supported). This indeed looks like a hack. However the second regmap (clk) is needed to get the timing data from registers from DMC clock driver address space. These are registers with memory timing so their data is not exposed anyway in common clk framework. Best regards, Krzysztof
