uxa: Check for DPMS off before scheduling a WAIT_ON_EVENT

Regression from commit 3f3bde4f0c72f6f31aae322bcdc20b95eade6631
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Thu May 24 11:58:46 2012 +0100

    uxa: Only consider an output valid if the kernel reports it attached

When backporting from SNA, a key difference that UXA does not track DPMS
state in its enabled flag and that a DPMS off CRTC is still bound to the
fb. So we do need to rescan the outputs and check that we have a
connector enabled *and* the pipe is running prior to emitting a scanline
wait.

References: https://bugs.freedesktop.org/show_bug.cgi?id=50668
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

0 files changed, 0 insertions, 0 deletions