From: Anusha Srivatsa Date: Tue, 4 Mar 2025 21:05:37 +0000 (-0500) Subject: Documentation: Update the todo X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=9e75b6ef407fee5d4ed8021cd7ddd9d6a8f7b0e8;p=users%2Fjedix%2Flinux-maple.git Documentation: Update the todo Update the Documentation to be more precise. v2: Update for clarity v3: Further details in Todo Cc: Thomas Zimmermann Signed-off-by: Anusha Srivatsa Acked-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/640856/?series=144073&rev=5 --- diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index 256d0d1cb2164..c57777a24e03d 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -441,14 +441,15 @@ Contact: Thomas Zimmermann 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.