5e335add0b
[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>