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| author | Nicholas Kazlauskas <[email protected]> | 2018-09-21 13:35:24 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2018-10-09 22:04:13 +0000 |
| commit | 6c0984d53b073d42ba44c92a1a721840f90bda60 (patch) | |
| tree | 4c85658d23c1b7157f820550c3dd8f9661d54289 /drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | |
| parent | drm/amd/display: HLK Periodic Frame Notification test failed (diff) | |
| download | kernel-6c0984d53b073d42ba44c92a1a721840f90bda60.tar.gz kernel-6c0984d53b073d42ba44c92a1a721840f90bda60.zip | |
drm/amd/display: Raise dispclk value for dce_update_clocks
[Why]
The DISPCLK value was previously requested to be 15% higher for all
ASICS that went through the dce110 bandwidth code path. As part of a
refactoring of dce_clocks and dce110 set_bandwidth this was removed
for power saving considerations.
This changed caused corruption under certain display configurations.
Originally thought to be Vega specific, it was also observed on Polaris.
[How]
The 15% is brought back but its placement differs from the original
patch. This boost should only be enable while DFS bypass is inactive.
This (like the Vega patch) is also a workaround that should be
removed after the root cause is identified.
Signed-off-by: Nicholas Kazlauskas <[email protected]>
Reviewed-by: Harry Wentland <[email protected]>
Acked-by: Leo Li <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c')
0 files changed, 0 insertions, 0 deletions