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-rw-r--r--Documentation/gpu/todo.rst41
1 files changed, 31 insertions, 10 deletions
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 36625aa66c27..1e593370f64f 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -179,8 +179,39 @@ don't do this, drivers used dev_info/warn/err to make this differentiation. We
now have DRM_DEV_* variants of the drm print macros, so we can start to convert
those drivers back to using drm-formwatted specific log messages.
+Before you start this conversion please contact the relevant maintainers to make
+sure your work will be merged - not everyone agrees that the DRM dmesg macros
+are better.
+
Contact: Sean Paul, Maintainer of the driver you plan to convert
+Convert drivers to use simple modeset suspend/resume
+----------------------------------------------------
+
+Most drivers (except i915 and nouveau) that use
+drm_atomic_helper_suspend/resume() can probably be converted to use
+drm_mode_config_helper_suspend/resume().
+
+Contact: Maintainer of the driver you plan to convert
+
+Convert drivers to use drm_fb_helper_fbdev_setup/teardown()
+-----------------------------------------------------------
+
+Most drivers can use drm_fb_helper_fbdev_setup() except maybe:
+
+- amdgpu which has special logic to decide whether to call
+ drm_helper_disable_unused_functions()
+
+- armada which isn't atomic and doesn't call
+ drm_helper_disable_unused_functions()
+
+- i915 which calls drm_fb_helper_initial_config() in a worker
+
+Drivers that use drm_framebuffer_remove() to clean up the fbdev framebuffer can
+probably use drm_fb_helper_fbdev_teardown().
+
+Contact: Maintainer of the driver you plan to convert
+
Core refactorings
=================
@@ -382,11 +413,6 @@ those drivers as simple as possible, so lots of room for refactoring:
one of the ideas for having a shared dsi/dbi helper, abstracting away the
transport details more.
-- tinydrm_lastclose could be drm_fb_helper_lastclose. Only thing we need
- for that is to store the drm_fb_helper pointer somewhere in
- drm_device->mode_config. And then we could roll that out to all the
- drivers.
-
- tinydrm_gem_cma_prime_import_sg_table should probably go into the cma
helpers, as a _vmapped variant (since not every driver needs the vmap).
And tinydrm_gem_cma_free_object could the be merged into
@@ -400,11 +426,6 @@ those drivers as simple as possible, so lots of room for refactoring:
a drm_device wrong. Doesn't matter, since everyone else gets it wrong
too :-)
-- With the fbdev pointer in dev->mode_config we could also make
- suspend/resume helpers entirely generic, at least if we add a
- dev->mode_config.suspend_state. We could even provide a generic pm_ops
- structure with those.
-
- also rework the drm_framebuffer_funcs->dirty hook wire-up, see above.
Contact: Noralf Trønnes, Daniel Vetter