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scsi: ufs: host: mediatek: Optimize power mode change handling

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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: Peter Wang <peter.wang@mediatek.com>
Link: https://lore.kernel.org/r/20250811131423.3444014-8-peter.wang@mediatek.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Peter Wang 2025-08-11 21:11:23 +08:00 committed by Martin K. Petersen
parent 979feee0cf
commit f1617ecf18
1 changed files with 11 additions and 0 deletions
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11
drivers/ufs/host/ufs-mediatek.c
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@ -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) {