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Subject: Re: [PATCH 3/3] arm64: dts: rk3399: Add init voltage for vdd_log
To:     Markus Reichl <m.reichl@fivetechno.de>,
        Kever Yang <kever.yang@rock-chips.com>, heiko@sntech.de
Cc:     Mark Rutland <mark.rutland@arm.com>,
        =?UTF-8?Q?Andrius_=c5=a0tikonas?= <andrius@stikonas.eu>,
        linux-kernel@vger.kernel.org, Alexis Ballier <aballier@gentoo.org>,
        linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
        Katsuhiro Suzuki <katsuhiro@katsuster.net>,
        Hugh Cole-Baker <sigmaris@gmail.com>,
        Elaine Zhang <zhangqing@rock-chips.com>,
        Andy Yan <andyshrk@gmail.com>,
        Robin Murphy <robin.murphy@arm.com>,
        Vicente Bergas <vicencb@gmail.com>,
        Oskari Lemmela <oskari@lemmela.net>,
        linux-rockchip@lists.infradead.org,
        Rob Herring <robh+dt@kernel.org>,
        Pragnesh Patel <Pragnesh_Patel@mentor.com>,
        Peter Robinson <pbrobinson@gmail.com>,
        Nick Xie <nick@khadas.com>,
        Ezequiel Garcia <ezequiel@collabora.com>,
        Vivek Unune <npcomplete13@gmail.com>,
        Akash Gajjar <akash@openedev.com>
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Date:   Tue, 12 Nov 2019 09:44:57 +0100
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On 12.11.19 09:16, Markus Reichl wrote:
> Hi Kever,
>
> have a rk3399-roc-pc running mainline U-Boot and kernel and vdd_log is
> showing 1118 mV.
> Is this a danger for the board?
I think yes. What I read vdd_log on rk3399 must not exceed 1.0V.
> How to fix it?
You probably need to do something like [1].

[1] https://patchwork.kernel.org/patch/11173465/

Gru=C3=9F,
S=C3=B6ren
> Btw. vin-supply for this pwm-regulator is ignored and I could not find i=
t
> in bindings doc.
>
> Gru=C3=9F,