linux-kernel - Re: [RFC/RFT v3 11/14] arm64: dts: meson-g12a: add cpus OPP table

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Date:   Wed, 3 Jul 2019 01:47:44 +0200
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     Neil Armstrong <narmstrong@...libre.com>
Cc:     jbrunet@...libre.com, khilman@...libre.com,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-gpio@...r.kernel.org
Subject: Re: [RFC/RFT v3 11/14] arm64: dts: meson-g12a: add cpus OPP table

Hi Neil,

On Mon, Jul 1, 2019 at 11:13 AM Neil Armstrong <narmstrong@...libre.com> wrote:
>
> Add the OPP table taken from the vendor u200 and u211 DTS.
>
> The Amlogic G12A SoC seems to available in 3 types :
> - low-speed: up to 1,8GHz
> - mid-speed: up to 1,908GHz
> - high-speed: up to 2.1GHz
>
> And the S905X2 opp voltages are slightly higher than the S905D2
> OPP voltages for the low-speed table.
>
> This adds the conservative OPP table with the S905X2 higher voltages
> and the maximum low-speed OPP frequency.
have you considered all three as separate voltage tables?
you're other patches are assigning the OPP table to the CPU in the
board.dts anyways, so it's easy to use different OPP tables for
different boards