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Subject: Re: [linux-sunxi] [RFC] ARM: dts: sunxi: Add regulators and board-specific operating points for LeMaker BananaPi
From: public_timo.s@silentcreek.de
To: robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com,
        ijc+devicetree@hellion.org.uk, galak@codeaurora.org,
        linux@arm.linux.org.uk, maxime.ripard@free-electrons.com,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com,
        hdegoede@redhat.com
Cc: wens@csie.org
Message-Id: <20150727123653.36C046C8007E@dd34104.kasserver.com>
Date: Mon, 27 Jul 2015 14:36:53 +0200 (CEST)
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Hi again,

one more thing...

Hans de Goede schrieb am 27.07.2015 10:07:
> IMHO we should just stick with the standard operating points unless we know
> that there are stability issues with them (such as e.g. on the A10 OlinuxIno
> Lime).

If we stick to the standard operating points, shouldn't we honor their voltages
as well? If we set the minimum voltage for dcdc2 to 1.0V (as you did) or 1.05V
(as I did), this means that the lowest operating point of 144MHz@0.9V defined
in sun7i-a20.dtsi (and with my definition the 312MHz opp as well) will not be
available because cpufreq-dt simply ignores operating points that aren't within
the set voltage range for that regulator.


Regards,

Timo


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