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| author |   Ville Syrjälä <ville.syrjala@linux.intel.com> | 2014-08-06 14:49:53 +0300 |
|---|---|---|
| committer |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-08-06 22:39:28 +0200 |
| commit | 4ed0ce3d0bccd74416ba6beb33a8a79d1617e97b (patch) | |
| tree | d8898f1d518a7141d425cccae24a23b719a2df43 /Documentation/DocBook/drm.tmpl | |
| parent | drm: Fix race between drm_vblank_off() and drm_queue_vblank_event() (diff) | |
| download | linux-dev-4ed0ce3d0bccd74416ba6beb33a8a79d1617e97b.tar.xz linux-dev-4ed0ce3d0bccd74416ba6beb33a8a79d1617e97b.zip | |
drm: Disable vblank interrupt immediately when drm_vblank_offdelay<0
Make drm_vblank_put() disable the vblank interrupt immediately when the
refcount drops to zero and drm_vblank_offdelay<0.
v2: Preserve the current drm_vblank_offdelay==0 'never disable' behaviur
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'Documentation/DocBook/drm.tmpl')
| -rw-r--r-- | Documentation/DocBook/drm.tmpl | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/DocBook/drm.tmpl b/Documentation/DocBook/drm.tmpl index 1d3756d3176c..55923d00bd52 100644 --- a/Documentation/DocBook/drm.tmpl +++ b/Documentation/DocBook/drm.tmpl @@ -3386,6 +3386,7 @@ void (*disable_vblank) (struct drm_device *dev, int crtc);</synopsis> by scheduling a timer. The delay is accessible through the vblankoffdelay module parameter or the <varname>drm_vblank_offdelay</varname> global variable and expressed in milliseconds. Its default value is 5000 ms. + Zero means never disable, and a negative value means disable immediately. </para> <para> When a vertical blanking interrupt occurs drivers only need to call the |