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

[Geert Uytterhoeven]

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@xxxxxxxxx>
---
 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
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2.34.1