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From: Kevin Hilman <>
To: Martin Blumenstingl <>,
Cc: Martin Blumenstingl <>,,
Subject: Re: [PATCH 0/4] ARM: dts: meson8b: add VDDEE / mali-supply
Date: Tue, 11 Jun 2019 16:32:10 -0700
Message-ID: <> (raw)
In-Reply-To: <>

Martin Blumenstingl <> 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.


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Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-25 19:02 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 ` Kevin Hilman [this message]
2019-06-12 19:09   ` [PATCH 0/4] ARM: dts: meson8b: add VDDEE / mali-supply Martin Blumenstingl
2019-06-13 19:43     ` Kevin Hilman

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