drm/modes: Allow to specify rotation and reflection on the commandline

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Rotations and reflections setup are needed in some scenarios to initialise
properly the initial framebuffer. Some drivers already had a bunch of
quirks to deal with this, such as either a private kernel command line
parameter (omapdss) or on the device tree (various panels).

In order to accomodate this, let's create a video mode parameter to deal
with the rotation and reflexion.

Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/777da16e42db757c1f5b414b5ca34507097fed5c.1560783090.git-series.maxime.ripard@bootlin.com

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Maxime Ripard 2019-06-19 12:17:51 +02:00

parent 3aeeb13d89

commit 1bf4e09227

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4 changed files with 146 additions and 20 deletions

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12

Documentation/fb/modedb.txt

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30

drivers/gpu/drm/drm_client_modeset.c

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114

drivers/gpu/drm/drm_modes.c

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10

include/drm/drm_connector.h

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