linux-kernel - Re: [PATCH 1/3] drm/todo: Add atomic modesetting references

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Message-ID: <878rd2cfme.fsf@minerva.mail-host-address-is-not-set>
Date:   Fri, 02 Jun 2023 12:39:37 +0200
From:   Javier Martinez Canillas <javierm@...hat.com>
To:     Geert Uytterhoeven <geert+renesas@...der.be>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Jonathan Corbet <corbet@....net>,
        Jyri Sarha <jyri.sarha@....fi>,
        Tomi Valkeinen <tomba@...nel.org>,
        Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
        Biju Das <biju.das.jz@...renesas.com>
Cc:     linux-renesas-soc@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-doc@...r.kernel.org
Subject: Re: [PATCH 1/3] drm/todo: Add atomic modesetting references

Geert Uytterhoeven <geert+renesas@...der.be> writes:

Hello Geert,

Thanks for your patch.

> The section about converting existing KMS drivers to atomic modesetting
> mentions the existence of a conversion guide, but does not reference it.
> While the guide is old and rusty, it still contains useful information,
> so add a link to it.  Also link to the LWN.net articles that give an
> overview about the atomic mode setting design.
>

This is a great idea and agree that would be very useful to have these.

> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> ---
>  Documentation/gpu/todo.rst | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
> index 68bdafa0284f55f6..51eb67f5268c5ec1 100644
> --- a/Documentation/gpu/todo.rst
> +++ b/Documentation/gpu/todo.rst
> @@ -49,14 +49,19 @@ converted over. Modern compositors like Wayland or Surfaceflinger on Android
>  really want an atomic modeset interface, so this is all about the bright
>  future.
>  
> -There is a conversion guide for atomic and all you need is a GPU for a
> +There is a conversion guide for atomic[1] and all you need is a GPU for a
>  non-converted driver (again virtual HW drivers for KVM are still all
> -suitable).

Are any of the virtual drivers not yet ported to atomic? This sentence
seems to be outdated and maybe you could remove it on a following patch?

Reviewed-by: Javier Martinez Canillas <javierm@...hat.com>

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat