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| author |   Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2015-10-20 17:17:07 +0100 |
|---|---|---|
| committer |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-10-21 08:45:15 +0200 |
| commit | 54bf1ce633f6649b1f3682c25712b9e42acb174b (patch) | |
| tree | f6d6af4d4c4cdac4651f5c119545aa8a8f3679a9 /drivers/gpu/drm/i915/intel_ringbuffer.c | |
| parent | drm/i915/skl: If needed sanitize bios programmed cdclk (diff) | |
| download | linux-dev-54bf1ce633f6649b1f3682c25712b9e42acb174b.tar.xz linux-dev-54bf1ce633f6649b1f3682c25712b9e42acb174b.zip | |
drm/i915/skl: Assume no scaling is available when things are not as expected
Cdclk < crtc_clock is not allowed and suggests a different problem
elsewhere in the code.
It is more robust and safe to assume no scaling is possible in
this case with no other downsides since it will also WARN_ON_ONCE
so that this definitely gets noticed.
Call it an assert to help new platform bring-up in simulation.
v2: Better commit msg and use WARN_ON_ONCE to signify the unexpectedness.
v3: Move zero crtc_clock check under the warn. (Ville)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.c')
0 files changed, 0 insertions, 0 deletions