From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun, 20 Jan 2013 16:32:21 +0000 (+0100)
Subject: drm: review locking for drm_fb_helper_restore_fbdev_mode
X-Git-Tag: v3.9-rc1~83^2~16^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6aed8ec3f76a22217c9ae183d32b1aa990bed069;p=pandora-kernel.git

drm: review locking for drm_fb_helper_restore_fbdev_mode

... it's required. Fix up exynos and the cma helper, and add a
corresponding WARN_ON to drm_fb_helper_restore_fbdev_mode.

Note that tegra calls the fbdev cma helper restore function also from
it's driver-load callback. Which is a bit against current practice,
since usually the call is only from ->lastclose, and initial setup is
done by drm_fb_helper_initial_config.

Also add the relevant drm DocBook entry.

v2: Add promised WARN to restore_fbdev_mode.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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