linux-kernel - Re: [PATCH 0/6] arm64: g12a: add support for DVFS

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Date:   Mon, 05 Aug 2019 12:07:54 -0700
From:   Kevin Hilman <khilman@...libre.com>
To:     Neil Armstrong <narmstrong@...libre.com>
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/6] arm64: g12a: add support for DVFS

Neil Armstrong <narmstrong@...libre.com> 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
>
> Dependencies:
> - 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.

Kevin