Re: [PATCH 0/6] arm64: g12a: add support for DVFS
From: Kevin Hilman
Date: Thu Aug 08 2019 - 19:56:13 EST
Kevin Hilman <khilman@xxxxxxxxxxxx> writes:
> Neil Armstrong <narmstrong@xxxxxxxxxxxx> writes:
>> The G12A & G12B SoCs has kernel controllable CPU clocks and PWMs for
>> voltage regulators.
>> This patchsets moves the meson-g12a.dtsi to meson-g12-common.dtsi to simplify
>> handling the G12A & G12B differences in the meson-g12a.dtsi & meson-g12b.dtsi
>> files, like the OPPs and CPU nodes.
>> Then G12A & G12B OPP tables are added, followed by the CPU voltages regulators
>> in each boards DT.
>> It was voluntary chosen to enabled DVFS (CPU regulator and CPU clocks) only
>> in boards, to make sure only tested boards has DVFS enabled.
>> This patchset :
>> - moves the G12A DT to a common g12a-common dtsi
>> - adds the G12A and G12B OPPs
>> - enables DVFS on all supported boards
>> - None
> Not quite. The last patch to enable DVFS on odroid-n2 has a build-time
> dependency on the clock series that adds the CPUB clock.
> I'll apply the rest of the series to v5.4/dt64 until there's a stable
> clock tag I can use for the clocks.
In order to test this, I noticed another dependency needed for the PWM
regulators to work:
With that and the clock deps, it's working well on my odroid-n2.
Tested-by: Kevin Hilman <khilman@xxxxxxxxxxxx>