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drm/amd/display: Block 3D Timings

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- we don't yet support 3D timings in DAL3
- somehow a code path was being executed that resulted in HW programming
for a 3D timing, which caused 3D displays to show half the desktop in one
frame, and the other half of the desktop in the next frame
- blocking all 3D timings in timing generator validation until we
implement proper 3D timing support

Signed-off-by: Joshua Aberback <Joshua.Aberback@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Joshua Aberback 2016-11-29 17:56:05 -05:00 committed by Alex Deucher
parent ead964f24e
commit 1293b4339f
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c
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@ -1113,6 +1113,10 @@ bool dce110_timing_generator_validate_timing(
if (!timing)
return false;
/* Currently we don't support 3D, so block all 3D timings */
if (timing->timing_3d_format != TIMING_3D_FORMAT_NONE)
return false;
/* Check maximum number of pixels supported by Timing Generator
* (Currently will never fail, in order to fail needs display which
* needs more than 8192 horizontal and