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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2018-11-27 20:20:04 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2019-01-14 21:23:55 +0200 |
| commit | ed20151a7699bb2c77eba3610199789a126940c4 (patch) | |
| tree | 0f627cdb8cad46a5b9d620b7d4262b3b9a2d2cbc /Documentation/percpu-rw-semaphore.txt | |
| parent | e3de0aa6c9afdca053389a4721d6a7d65126dfb8 (diff) | |
drm/vblank: Allow dynamic per-crtc max_vblank_countdrm-misc-next-2019-01-15
On i965gm we need to adjust max_vblank_count dynamically
depending on whether the TV encoder is used or not. To
that end add a per-crtc max_vblank_count that takes
precedence over its device wide counterpart. The driver
can now call drm_crtc_set_max_vblank_count() to configure
the per-crtc value before calling drm_vblank_on().
Also looks like there was some discussion about exynos needing
similar treatment.
v2: Drop the extra max_vblank_count!=0 check for the
WARN(last!=current), will take care of it in i915 code (Daniel)
WARN_ON(!inmodeset) (Daniel)
WARN_ON(dev->max_vblank_count)
Pimp up the docs (Daniel)
Cc: stable@vger.kernel.org
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181127182004.28885-1-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'Documentation/percpu-rw-semaphore.txt')
0 files changed, 0 insertions, 0 deletions