Commit f1617ecf authored by Peter Wang's avatar Peter Wang Committed by Martin K. Petersen
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scsi: ufs: host: mediatek: Optimize power mode change handling 



Optimize the power mode change process by skipping the adaptation
setting toggle if the requested power mode configuration is already
applied. This enhancement reduces unnecessary operations, improving
efficiency during power mode transitions.

Signed-off-by: default avatarPeter Wang <peter.wang@mediatek.com>
Link: https://lore.kernel.org/r/20250811131423.3444014-8-peter.wang@mediatek.com


Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 979feee0

drivers/ufs/host/ufs-mediatek.c

+11 −0
Original line number Diff line number Diff line
@@ -1398,6 +1398,17 @@ static int ufs_mtk_pre_pwr_change(struct ufs_hba *hba, 
		}

	}



	/* if already configured to the requested pwr_mode, skip adapt */

	if (dev_req_params->gear_rx == hba->pwr_info.gear_rx &&

	    dev_req_params->gear_tx == hba->pwr_info.gear_tx &&

	    dev_req_params->lane_rx == hba->pwr_info.lane_rx &&

	    dev_req_params->lane_tx == hba->pwr_info.lane_tx &&

	    dev_req_params->pwr_rx == hba->pwr_info.pwr_rx &&

	    dev_req_params->pwr_tx == hba->pwr_info.pwr_tx &&

	    dev_req_params->hs_rate == hba->pwr_info.hs_rate) {

		return ret;

	}



	if (dev_req_params->pwr_rx == FAST_MODE ||

	    dev_req_params->pwr_rx == FASTAUTO_MODE) {

		if (host->hw_ver.major >= 3) {