drm: rework description of primary and cursor planes

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The previous wording could be understood by user-space evelopers as "a
primary/cursor plane is only compatible with a single CRTC" [1].

Reword the planes description to make it clear the DRM-internal
drm_crtc.primary and drm_crtc.cursor planes are for legacy uAPI.

[1]: https://github.com/swaywm/wlroots/pull/2333#discussion_r456788057

Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201211184634.74534-1-contact@emersion.fr

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Simon Ser 2020-12-11 19:46:31 +01:00

parent 010dbfbe7b

commit 9999587b68

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3

drivers/gpu/drm/drm_crtc.c

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16

drivers/gpu/drm/drm_plane.c

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