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From:   Javier Martinez Canillas <javierm@redhat.com>
To:     Jarrah <kernel@undef.tools>,
        Heiko =?utf-8?Q?St=C3=BCbner?= <heiko@sntech.de>,
        linux-kernel@vger.kernel.org
Cc:     Peter Robinson <pbrobinson@gmail.com>,
        Caleb Connolly <kc@postmarketos.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Martijn Braam <martijn@brixit.nl>, Ondrej Jirman <megi@xff.cz>,
        Rob Herring <robh+dt@kernel.org>,
        Tom Fitzhenry <tom@tom-fitzhenry.me.uk>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-rockchip@lists.infradead.org
Subject: Re: [PATCH] arm64: dts: rockchip: Change serial baud rate for
 Pinephone Pro to 1.5 MB
In-Reply-To: <d7efebcc-5b5b-185e-bec8-b6b9d5d27d93@undef.tools>
References: <20230403175937.2842085-1-javierm@redhat.com>
 <3738011.44csPzL39Z@diego>
 <d7efebcc-5b5b-185e-bec8-b6b9d5d27d93@undef.tools>
Date:   Tue, 04 Apr 2023 10:24:00 +0200
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Jarrah <kernel@undef.tools> writes:

> Hi,
>
> On 4/4/23 17:51, Heiko St=C3=BCbner wrote:
>> The interesting question is always if this will break someone else's set=
up.
>> I've never really understood the strange setting of 1.5MBps, but on the
>> other hand it _is_ a reality on most boards.
>>
>> Personally I don't care that much either way, but would like a comment
>> from the other people working on that device - if possible.
>
>
> I don't have a strong opinion either way, but I would note that=20
> Tow-Boot[0] which later models of this device ship with uses 115200,=20
> meaning that this would put the device out of sync with the default=20
> u-boot implementation from the factory.
>

Probably we can't change then because it would break the setup of people
using Tow-Boot as a bootloader.

> At least for me it's been convenient to have both the PP and PPP use the=
=20
> same settings while debugging.
>

Agreed, all my other boards use 115200 as well, the only exceptions are
the Rockpro64 and PinePhone Pro for me.

--=20
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat