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Date:   Thu, 10 Nov 2022 11:39:14 +0100
From:   Maxime Ripard <maxime@cerno.tech>
To:     Lukas Satin <luke.satin@gmail.com>
Cc:     kfyatek+publicgit@gmail.com,
        Jani Nikula <jani.nikula@linux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>,
        Ben Skeggs <bskeggs@redhat.com>,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        Samuel Holland <samuel@sholland.org>,
        Jernej Skrabec <jernej.skrabec@gmail.com>,
        Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Emma Anholt <emma@anholt.net>,
        Karol Herbst <kherbst@redhat.com>,
        Daniel Vetter <daniel@ffwll.ch>, Chen-Yu Tsai <wens@csie.org>,
        Lyude Paul <lyude@redhat.com>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        David Airlie <airlied@linux.ie>,
        Dom Cobley <dom@raspberrypi.com>,
        nouveau@lists.freedesktop.org, intel-gfx@lists.freedesktop.org,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-sunxi@lists.linux.dev, Hans de Goede <hdegoede@redhat.com>,
        Noralf =?utf-8?Q?Tr=C3=B8nnes?= <noralf@tronnes.org>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Phil Elwell <phil@raspberrypi.com>,
        linux-arm-kernel@lists.infradead.org
Subject: Re: [Nouveau] [PATCH v7 22/23] drm/vc4: vec: Add support for more
 analog TV standards
Message-ID: <20221110103914.hsft4tacop6zerem@houat>
References: <20220728-rpi-analog-tv-properties-v7-0-7072a478c6b3@cerno.tech>
 <20220728-rpi-analog-tv-properties-v7-22-7072a478c6b3@cerno.tech>
 <e0779ff5-3227-4a6f-1c0b-de2fbff99425@gmail.com>
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On Wed, Nov 09, 2022 at 05:55:36PM +0100, Lukas Satin wrote:
> That's great, I will test it on Ubuntu + Nouveau x86_64 and Batocera-Linu=
x.
>=20
> I'm not interested in Raspberry Pi. I see you have some commit in
> RaspberryPi/Linux. Will this go to some Nouveau driver, so I can test it =
on
> x86_64 machine? I have some basic experience compiling Linux kernel (nvid=
ia
> driver) from 10 years ago.

Nouveau is only marginally affected by this patch series. It could
leverage the work done here, but it's not part of it and I won't plan to
work on it.

The RaspberryPi is mentioned because it's the platform that will benefit
the most from it, and the main target of that series.

> Scaling is not the way to go because I do this to not use scaling. I could
> use 640x480 and scale 320x240 to that mode, right? That is what old
> retrogaming laptop LCD screens do (you can even enable this in their BIOS=
).
>=20
> More appropriate is to preserve pixel ratio and have some border. So you
> mostly select the closest resolution and live with small border on the
> edge. Then you can crop it on analog TV using real world dials :-)
>=20
> I joined Nouveau developer list here. I don't know why we have like 40
> email recipients here and now we discuss Raspberry.

Nouveau is marginally affected by it, so its mailing list is in Cc.

Maxime

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