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| author | Samson Tam <Samson.Tam@amd.com> | 2022-04-07 12:04:42 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-06-03 16:45:00 -0400 |
| commit | e87b92c6af537843daf7da9235e622988bae7eae (patch) | |
| tree | 63e2fc3f972c181cd25b22aab09fd95520f0ca1b /drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | |
| parent | 4c1b3d0803aef6d39913f1e9d2cfe2c1ccce18e8 (diff) | |
drm/amd/display: do not override CURSOR_REQ_MODE when SubVP is not enabled
[Why]
HUBP_UNBOUNDED_REQ_MODE and CURSOR_REQ_MODE are normally set together.
In hubp32_prepare_subvp_buffering() call, CURSOR_REQ_MODE is set based on
whether SubVP is enabled or not. For non MPO case, both REQ_MODE
registers are set to 1. But since SubVP is not enabled, then
CURSOR_REQ_MODE is set to 0, overriding the previous value.
[How]
Do not set CURSOR_REQ_MODE to 0 if SubVP is not enabled. This
will allow CURSOR_REQ_MODE to stay as 1 in the non MPO case.
Add note to follow up and check case for single pipe MPO and
SubVP enabled as this would cause both REQ_MODE registers to be
set to 0 but SubVP enabled would override CURSOR_REQ_MODE to 1.
Signed-off-by: Samson Tam <Samson.Tam@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
0 files changed, 0 insertions, 0 deletions