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| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2018-10-04 11:46:07 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-11-28 15:55:34 -0500 |
| commit | 1398958cfd8d331342d657d37151791dd7256b40 (patch) | |
| tree | 37329fc15ef48d5e0318b6d9d063894602baf303 /include/drm/drm_crtc.h | |
| parent | ba1b0f6c73d4ea1390f0d5381f715ffa20c75f09 (diff) | |
| download | linux-0-day-1398958cfd8d331342d657d37151791dd7256b40.tar.gz linux-0-day-1398958cfd8d331342d657d37151791dd7256b40.tar.xz | |
drm: Add vrr_enabled property to drm CRTC
This patch introduces the 'vrr_enabled' CRTC property to allow
dynamic control over variable refresh rate support for a CRTC.
This property should be treated like a content hint to the driver -
if the hardware or driver is not capable of driving variable refresh
timings then this is not considered an error.
Capability for variable refresh rate support should be determined
by querying the vrr_capable drm connector property.
It is worth noting that while the property is intended for atomic use
it isn't filtered from legacy userspace queries. This allows for Xorg
userspace drivers to implement support.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include/drm/drm_crtc.h')
| -rw-r--r-- | include/drm/drm_crtc.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index b21437bc95bf3..39c3900aab3ce 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -291,6 +291,15 @@ struct drm_crtc_state { u32 pageflip_flags; /** + * @vrr_enabled: + * + * Indicates if variable refresh rate should be enabled for the CRTC. + * Support for the requested vrr state will depend on driver and + * hardware capabiltiy - lacking support is not treated as failure. + */ + bool vrr_enabled; + + /** * @event: * * Optional pointer to a DRM event to signal upon completion of the |