drm/amd/display: early return when pipe_cnt is 0 in bw validation

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[Why]
Unintentionally introduced behaviour change from previous refactor,
which causes clks to be 0 in no stream cases, which will cause
divide by 0.

[How]
Skip calculation of clocks when no stream. Which is the same as old
behaviour.

Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <tong.cheng@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Eric Yang 2019-06-04 18:14:43 -04:00 • committed by Alex Deucher

parent 64af142a8c

commit 5e335add0b

2 changed files with 8 additions and 1 deletions

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8

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c

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1

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.h

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