From: "Timo Sigurdsson" <public_timo.s@silentcreek.de>
To: hdegoede@redhat.com, wens@csie.org
Cc: galak@codeaurora.org, linux-kernel@vger.kernel.org,
mark.rutland@arm.com, devicetree@vger.kernel.org,
ijc+devicetree@hellion.org.uk,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@googlegroups.com, pawel.moll@arm.com,
maxime.ripard@free-electrons.com, linux@arm.linux.org.uk,
robh+dt@kernel.org
Subject: Re: [linux-sunxi] [RFC] ARM: dts: sunxi: Add regulators and board-specific operating points for LeMaker BananaPi
Date: Tue, 28 Jul 2015 11:02:16 +0200 (CEST) [thread overview]
Message-ID: <20150728090216.892076C80D94@dd34104.kasserver.com> (raw)
In-Reply-To: <CAGb2v65ApKvrj6K+kw43u=0q6=auTsmQjCXhibgZkW+vd5nDqA@mail.gmail.com>
Hi,
Chen-Yu Tsai schrieb am 27.07.2015 15:14:
>> ChenYu (in the CC), since you did most of the original work here, do
>> you know why we have an op at 0.9 volt, but none of our boards allow the
>> voltage to go that low in the regulator settings ?
>
> I'm on vacation now, so apologies for the bad formatting.
>
> The OPPs are from a common subset
> of the settings from the fex files available
> at the time. Some fex files actually set
> min and max voltage thus eliminating
> the highest and lowest OPPs.
>
> At least that is how Maxime and I
> interpreted them.
IMHO for a common maximum opp that's a good approach. But for the lowest
frequency setting, it would seem more logical to me, to raise the voltage
to a point where all boards will run fine with them, unless those boards
cannot handle the frequency regardless of the higher voltage.
Regards,
Timo
next prev parent reply other threads:[~2015-07-28 9:02 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-27 1:28 Timo Sigurdsson
2015-07-27 8:07 ` [linux-sunxi] " Hans de Goede
2015-07-27 12:09 ` public_timo.s
2015-07-27 12:43 ` Hans de Goede
2015-07-28 9:02 ` Timo Sigurdsson
2015-07-28 12:55 ` Maxime Ripard
2015-07-28 14:57 ` Timo Sigurdsson
2015-07-28 12:49 ` Maxime Ripard
2015-07-28 14:24 ` Hans de Goede
2015-07-28 15:09 ` Timo Sigurdsson
2015-07-28 15:29 ` Hans de Goede
2015-08-02 22:00 ` Timo Sigurdsson
2015-07-28 14:45 ` Timo Sigurdsson
2015-07-27 12:36 ` public_timo.s
2015-07-27 12:54 ` Hans de Goede
[not found] ` <CAGb2v65ApKvrj6K+kw43u=0q6=auTsmQjCXhibgZkW+vd5nDqA@mail.gmail.com>
2015-07-28 9:02 ` Timo Sigurdsson [this message]
2015-07-28 12:55 ` Maxime Ripard
2015-07-28 15:01 ` Timo Sigurdsson
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