diff options
| author |   Ville Syrjälä <ville.syrjala@linux.intel.com> | 2016-05-18 11:34:38 +0300 |
|---|---|---|
| committer |   Dave Airlie <airlied@redhat.com> | 2016-08-03 07:06:41 +1000 |
| commit | dfd2e9ab6a7db56a5f5bb55f71485a92613c8e11 (patch) | |
| tree | 968afed7882d42d34c35f96ae1d7fb25aefc2451 /drivers/gpu/drm/i915/intel_drv.h | |
| parent | drm/dp: Add drm_dp_psr_setup_time() (diff) | |
| download | linux-dev-dfd2e9ab6a7db56a5f5bb55f71485a92613c8e11.tar.xz linux-dev-dfd2e9ab6a7db56a5f5bb55f71485a92613c8e11.zip | |
drm/i915: Check PSR setup time vs. vblank length
Bspec says:
"Restriction : SRD must not be enabled when the PSR Setup time from DPCD
00071h is greater than the time for vertical blank minus one line."
Let's check for that and disallow PSR if we exceed the limit.
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 3329fc6a95f4..cc937a19b1ba 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -1730,6 +1730,8 @@ bool intel_sdvo_init(struct drm_device *dev, /* intel_sprite.c */ +int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode, + int usecs); int intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane); int intel_sprite_set_colorkey(struct drm_device *dev, void *data, struct drm_file *file_priv); |