drm/sun4i: backend: Document the engine operations
authorMaxime Ripard <maxime.ripard@free-electrons.com>
Mon, 22 Jan 2018 09:25:16 +0000 (10:25 +0100)
committerMaxime Ripard <maxime.ripard@free-electrons.com>
Mon, 22 Jan 2018 14:14:43 +0000 (15:14 +0100)
commitc4c7c72e5c7aa56e6e8527aea3a79e6242282d8c
tree27a8f1fc37390c6e7e01e0130cc395b46e2e8d9c
parentf5870879e9d6519c90bb530257b3b4a2ac25a8b1
drm/sun4i: backend: Document the engine operations

Our operations were missing some documentation to explain what was expected
from them.

Let's make that clearer.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/fdcd8ec3ae9ecd73ef089ede5218d3a41b49be05.1516613040.git-series.maxime.ripard@free-electrons.com
drivers/gpu/drm/sun4i/sunxi_engine.h