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authorThomas Zimmermann <tzimmermann@suse.de>2019-11-06 15:47:26 +0300
committerThomas Zimmermann <tzimmermann@suse.de>2019-11-07 11:39:53 +0300
commit80ae0369d3e4b8559c04e2b4de2b86640908f2fd (patch)
treef19121f5ff1cd2a112be70105d9b805b57b47658 /Documentation/gpu
parent50ec5b563bed04b0b262822b755f6aa336f1f40a (diff)
downloadlinux-80ae0369d3e4b8559c04e2b4de2b86640908f2fd.tar.xz
drm/todo: Convert drivers to generic fbdev emulation
This replaces the original TODO item for drm_fb_helper_fbdev_setup() and _teardown(), which are deprecated. v2: * remove driver-specific comments * list some basic requirements * keep a TODO item on drm_fb_helper_init() Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191106124727.11641-2-tzimmermann@suse.de
Diffstat (limited to 'Documentation/gpu')
-rw-r--r--Documentation/gpu/todo.rst23
1 files changed, 7 insertions, 16 deletions
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index b3c0d517db93..3ec509381fc5 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -171,21 +171,12 @@ Contact: Maintainer of the driver you plan to convert
Level: Intermediate
-Convert drivers to use drm_fb_helper_fbdev_setup/teardown()
------------------------------------------------------------
+Convert drivers to use drm_fbdev_generic_setup()
+------------------------------------------------
-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().
+Most drivers can use drm_fbdev_generic_setup(). Driver have to implement
+atomic modesetting and GEM vmap support. Current generic fbdev emulation
+expects the framebuffer in system memory (or system-like memory).
Contact: Maintainer of the driver you plan to convert
@@ -328,8 +319,8 @@ drm_fb_helper tasks
these igt tests need to be fixed: kms_fbcon_fbt@psr and
kms_fbcon_fbt@psr-suspend.
-- The max connector argument for drm_fb_helper_init() and
- drm_fb_helper_fbdev_setup() isn't used anymore and can be removed.
+- The max connector argument for drm_fb_helper_init() isn't used anymore and
+ can be removed.
- The helper doesn't keep an array of connectors anymore so these can be
removed: drm_fb_helper_single_add_all_connectors(),