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| author |   Stephane Viau <sviau@codeaurora.org> | 2015-02-20 16:30:56 -0500 |
|---|---|---|
| committer |   Rob Clark <robdclark@gmail.com> | 2015-03-04 18:23:39 -0500 |
| commit | ba0312a6108f5214efb4659c4dbba218c5b9eb8d (patch) | |
| tree | b27844790dc074c5a228bbd9e227c1d6f9dace55 /drivers/gpu/drm/msm/msm_atomic.c | |
| parent | drm/msm: update generated headers (add 6th lm.base entry) (diff) | |
| download | linux-dev-ba0312a6108f5214efb4659c4dbba218c5b9eb8d.tar.xz linux-dev-ba0312a6108f5214efb4659c4dbba218c5b9eb8d.zip | |
drm/msm/mdp5: Avoid flushing registers when CRTC is disabled
When a CRTC is disabled, no CTL is allocated to it (CRTC->ctl == NULL);
in that case we should not try to FLUSH registers and do nothing instead.
This can happen when we try to move a cursor but the CRTC's CTL
(CONTROL) has not been allocated yet (inactive CRTC).
It can also happens when we .atomic_check()/.atomic_flush() on a
disabled CRTC.
A CTL needs to be kept as long as the CRTC is alive. Releasing it
after the last VBlank is safer than in .atomic_flush().
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions