Hi Anand, On Fri, Aug 30, 2019 at 11:34 AM Anand Moon <linux.amoon@xxxxxxxxx> wrote: [...] > > SCPI works fine on all tested devices, except Odroid-C2, because Hardkernel left > > the > 1.5GHz freq in the initial SCPI tables loaded by the BL2, i.e. packed with U-Boot. > > Nowadays they have removed the bad frequencies, but still some devices uses the old > > bootloader. > > > > But in the SCPI case we trust the table returned by the firmware and use it as-in, > > and there is no (simple ?) way to override the table and set a max frequency. > > > > This is why we disabled SCPI. > > > > See https://patchwork.kernel.org/patch/9500175/ > > I have quickly enable this on my board and here the cpufreq info [...] > Almost all the test case pass with this one as off now. I suggest to send an RFC patch to (re-)enable DVFS on Odroid-C2 I find it easy to miss a DVFS discussion inside a "missing regulator" series with a separate patch you can also get feedback from other Odroid-C2 owners who can help testing coincidence or not: on Friday someone asked in the #linux-amlogic IRC channel why Odroid-C2 didn't have DVFS enabled and what to do about it Martin
