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

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Message-Id: <7cea42cd09540657875a210cd16421125497d690.1685696114.git.geert+renesas@glider.be>
Date:   Fri,  2 Jun 2023 11:11:34 +0200
From:   Geert Uytterhoeven <geert+renesas@...der.be>
To:     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:     dri-devel@...ts.freedesktop.org, linux-doc@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH 1/3] drm/todo: Add atomic modesetting references

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.

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).
+suitable).  The "Atomic mode setting design overview" series [2][3] at
+LWN.net can also be helpful.
 
 As part of this drivers also need to convert to universal plane (which means
 exposing primary & cursor as proper plane objects). But that's much easier to
 do by directly using the new atomic helper driver callbacks.
 
+  - [1] https://blog.ffwll.ch/2014/11/atomic-modeset-support-for-kms-drivers.html
+  - [2] https://lwn.net/Articles/653071/
+  - [3] https://lwn.net/Articles/653466/
+
 Contact: Daniel Vetter, respective driver maintainers
 
 Level: Advanced
-- 
2.34.1