Currently ufs clk scaling is getting suspended only when the clks are scaled down, but next when high load is generated its adding a huge amount of latency in scaling up the clk and complete the request post that. Now if the scaling is suspended in its existing state, and when high load is generated it is helping improve the random performance KPI by 28%. So suspending the scaling when there is no request. And the clk would be put in low scaled state when the actual request load is low. Making this change as optional for other vendor by having the check enabled using vops as for some vendor suspending without bringing the clk in low scaled state might have impact on power consumption on the SoC. Changes since V1: - Address minor review comment. Ram Prakash Gupta (2): scsi: ufs: Suspend clk scaling on no request scsi: ufs: qcom: Enable suspending clk scaling on no request drivers/ufs/core/ufshcd.c | 3 ++- drivers/ufs/host/ufs-qcom.c | 2 ++ include/ufs/ufshcd.h | 1 + 3 files changed, 5 insertions(+), 1 deletion(-) -- 2.17.1
