drm: rcar-du: Rework CRTC enable/disable for atomic updates
authorLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Fri, 20 Feb 2015 12:05:21 +0000 (14:05 +0200)
committerLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tue, 3 Mar 2015 14:16:17 +0000 (16:16 +0200)
When using atomic updates the CRTC .enable() and .disable() helper
operations are preferred over the (then legacy) .prepare() and .commit()
operations. Implement .enable() and rework .disable() to not depend on
DPMS, easing DPMS removal later on.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

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