From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
To: Kevin Hilman <khilman@baylibre.com>
Cc: linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 0/4] ARM: dts: meson8b: add VDDEE / mali-supply
Date: Wed, 12 Jun 2019 21:09:51 +0200 [thread overview]
Message-ID: <CAFBinCAVqBxiRz+Fw5D+8XEPTxP13O35OhSD0pEzKjFcGK1H=A@mail.gmail.com> (raw)
In-Reply-To: <7htvcv3dhh.fsf@baylibre.com>
On Wed, Jun 12, 2019 at 1:32 AM Kevin Hilman <khilman@baylibre.com> wrote:
>
> Martin Blumenstingl <martin.blumenstingl@googlemail.com> writes:
>
> > EC-100 and Odroid-C1 use a "copy" of the VCCK regulator as "VDDEE"
> > regulator. VDDEE supplies the Mali GPU and various other bits within
> > the SoC.
> >
> > The VDDEE regulator is not exclusive to the Mali GPU so it must not
> > change it's voltage. The GPU OPP table has a fixed voltage for all
> > frequencies of 1.10V. This matches with what u-boot sets on my EC-100
> > and Odroid-C1.
> >
> > Dependencies:
> > - compile time: patch #4 depends on my other patch "ARM: meson8b-mxq:
> > better support for the TRONFY MXQ" from [0]
> > - runtime: we don't want the kernel to change the output of the VDDEE
> > regulator to the maximum value. Thus the PWM driver has to be able
> > to read the PWM period and duty cycle from u-boot. This is supported
> > with my series called "pwm-meson: cleanups and improvements" from [1]
>
> Just FYI... unless I hear otherwise, I'll wait for the PWM cleanups to
> land before queuing this series.
I'm happy with that because I'm not sure what will happen *without*
the PWM improvements
Martin
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next prev parent reply other threads:[~2019-06-12 19:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-25 19:02 [PATCH 0/4] ARM: dts: meson8b: add VDDEE / mali-supply Martin Blumenstingl
2019-05-25 19:02 ` [PATCH 1/4] ARM: dts: meson8b: add the PWM_D output pin Martin Blumenstingl
2019-05-25 19:02 ` [PATCH 2/4] ARM: dts: meson8b: ec100: add the VDDEE regulator Martin Blumenstingl
2019-05-25 19:02 ` [PATCH 3/4] ARM: dts: meson8b: odroidc1: " Martin Blumenstingl
2019-05-25 19:02 ` [PATCH 4/4] ARM: dts: meson8b: mxq: " Martin Blumenstingl
2019-06-11 23:32 ` [PATCH 0/4] ARM: dts: meson8b: add VDDEE / mali-supply Kevin Hilman
2019-06-12 19:09 ` Martin Blumenstingl [this message]
2019-06-13 19:43 ` Kevin Hilman
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