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| author | George Shen <george.shen@amd.com> | 2022-05-20 11:55:10 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-06-21 18:17:24 -0400 |
| commit | a3a885878e74d3d81e4742f8dd84faa27c8863ad (patch) | |
| tree | 8d81d97eff03aea7dca2792929bd4d0c0449aead /drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | |
| parent | 04e6931a76e592e66e1014ffe4d13303ccac5d8b (diff) | |
drm/amd/display: Fix divide-by-zero in DPPCLK and DISPCLK calculation
[Why]
Certain use cases will pass in zero in the new_clocks parameter for all
clocks. This results in a divide-by-zero error when attempting to round
up the new clock.
When new_clocks are zero, no rounding is required, so we can skip it.
[How]
Guard the division calculation with a check to make sure clocks are not
zero.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c')
0 files changed, 0 insertions, 0 deletions