linux-kernel - Re: [PATCH 4/6] arm64: dts: rockchip: Add devicetree for Pine64 Pinetab2

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Message-ID: <1883322.fLvJxeCpJd@bagend>
Date: Sat, 23 Dec 2023 15:17:58 +0100
From: Diederik de Haas <didi.debian@...ow.org>
To: Manuel Traut <manut@...ka.net>
Cc: Neil Armstrong <neil.armstrong@...aro.org>,
 Jessica Zhang <quic_jesszhan@...cinc.com>, Sam Ravnborg <sam@...nborg.org>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>,
 Sandy Huang <hjc@...k-chips.com>, Mark Yao <markyao0591@...il.com>,
 Segfault <awarnecke002@...mail.com>, Arnaud Ferraris <aferraris@...ian.org>,
 dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-rockchip@...ts.infradead.org
Subject:
 Re: [PATCH 4/6] arm64: dts: rockchip: Add devicetree for Pine64 Pinetab2

Hi Manuel,

On Saturday, 23 December 2023 14:59:34 CET Manuel Traut wrote:
> On Fri, Dec 22, 2023 at 06:01:54PM +0100, Diederik de Haas wrote:
> > On Friday, 22 December 2023 12:05:44 CET Manuel Traut wrote:
> > > +
> > > +&cru {
> > > +       assigned-clocks = <&cru PLL_GPLL>, <&pmucru PLL_PPLL>, <&cru
> > > PLL_VPLL>; +       assigned-clock-rates = <1200000000>, <200000000>,
> > > <500000000>; +};
> > 
> > Attachment seem to work and for this I also have the attached patch in my
> > patch set.
> > IIRC without it you get an error in dmesg immediately at boot up which is
> > visible on the PT2 *if* you have immediate visual output (which is not
> > (yet?) the case in my image/kernel).
> 
> you can see the message also by calling "dmesg --level err".
> I could verify that your patch removes the error message.

As I have been using that patch for a while, I couldn't verify it myself 
anymore ;-)
If you use the (default) danctnix image, then you see it immediately at boot 
up (at least the last time I tried it). With my (WIP) image, I only get visual 
output after 5-7 seconds, so you'll likely miss that visual error if the image 
you use also has a delay before outputting things on the screen.
But indeed, it would still show up in dmesg (without the patch).

> I will pick the change for v2.

Great :-)
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