diff options
Diffstat (limited to 'Documentation/gpu/todo.rst')
| -rw-r--r-- | Documentation/gpu/todo.rst | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index 256d0d1cb216..be8637da3fe9 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -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. @@ -514,6 +515,21 @@ Contact: Douglas Anderson <dianders@chromium.org> Level: Starter +Remove devm_drm_put_bridge() +---------------------------- + +Due to how the panel bridge handles the drm_bridge object lifetime, special +care must be taken to dispose of the drm_bridge object when the +panel_bridge is removed. This is currently managed using +devm_drm_put_bridge(), but that is an unsafe, temporary workaround. To fix +that, the DRM panel lifetime needs to be reworked. After the rework is +done, remove devm_drm_put_bridge() and the TODO in +drm_panel_bridge_remove(). + +Contact: Maxime Ripard <mripard@kernel.org>, + Luca Ceresoli <luca.ceresoli@bootlin.com> + +Level: Intermediate Core refactorings ================= |