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Documentation: Update the todo

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Update the Documentation to be more precise.

v2: Update for clarity
v3: Further details in Todo

Cc: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/640856/?series=144073&rev=5
This commit is contained in:
Anusha Srivatsa
2025-03-04 16:05:37 -05:00
committed by Anusha Srivatsa
parent 67c4ea8267
commit 9e75b6ef40
1 changed files with 7 additions and 6 deletions
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13
Documentation/gpu/todo.rst
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@@ -441,14 +441,15 @@ Contact: Thomas Zimmermann <tzimmermann@suse.de>
Level: Intermediate
Request memory regions in all drivers
-------------------------------------
Request memory regions in all fbdev drivers
--------------------------------------------
Go through all drivers and add code to request the memory regions that the
driver uses. This requires adding calls to request_mem_region(),
Old/ancient fbdev drivers do not request their memory properly.
Go through these drivers and add code to request the memory regions
that the driver uses. This requires adding calls to request_mem_region(),
pci_request_region() or similar functions. Use helpers for managed cleanup
where possible.
where possible. Problematic areas include hardware that has exclusive ranges
like VGA. VGA16fb does not request the range as it is expected.
Drivers are pretty bad at doing this and there used to be conflicts among
DRM and fbdev drivers. Still, it's the correct thing to do.