drm/amd/display: minor restructuring of pbn calculation functions

Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wenjing Liu 2020-10-06 16:22:40 -04:00 • committed by Alex Deucher
commit 786b406174