31.08.2020 11:41, Viresh Kumar пишет: > On 31-08-20, 10:54, Dmitry Osipenko wrote: >> 31.08.2020 07:39, Viresh Kumar пишет: >> ... >>>>> Dmitry, I think there is further scope of simplifying stuff here by >>>>> using the opp-microvolt-<name> property and corresponding >>>>> dev_pm_opp_set_prop_name() call. >>> >>> Any inputs on this Dmitry ? >> >> Could you please give an example? > > There are many users of it in the kernel. grep for "opp-microvolt-" in > the DT files and you will see. > > The use of this property is to specific multiple microvolt properties > to the same frequency without a need to create separate nodes for them > all. The right microvolt property will be selected based on the call > made to dev_pm_opp_set_prop_name(), search for that too in kernel. > It's not clear to me how it could be applicable to the Tegra CPU OPP because Tegra depends on a combination of SPEEDO + PROCESS versions. It's not like all voltages are the same for all OPPs that have the same PROCESS ID, otherwise it indeed would be nice to have "opp-microvolt-process0", but unfortunately this variant is not suitable for Tegra because some freqs have different voltages using the same PROCESS ID and the same applies to the SPEEDO ID.
