diff options
| author | Peter Wang <peter.wang@mediatek.com> | 2025-09-03 10:44:38 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-09-09 22:46:22 -0400 |
| commit | 15ef3f5aa822f32524cba1463422a2c9372443f0 (patch) | |
| tree | e9dcfad44ada671e18249750e1492aff09284512 | |
| parent | faac32d4ece30609f1a0930ca0ae951cf6dc1786 (diff) | |
scsi: ufs: host: mediatek: Enhance recovery on resume failure
Improve the recovery process for failed resume operations. Log the
device's power status and return 0 if both resume and recovery fail to
prevent I/O hang.
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/ufs/host/ufs-mediatek.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index e62f02b7ca76..804a18fe2198 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -1775,8 +1775,21 @@ static int ufs_mtk_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) } return 0; + fail: - return ufshcd_link_recovery(hba); + /* + * Check if the platform (parent) device has resumed, and ensure that + * power, clock, and MTCMOS are all turned on. + */ + err = ufshcd_link_recovery(hba); + if (err) { + dev_err(hba->dev, "Device PM: req=%d, status:%d, err:%d\n", + hba->dev->power.request, + hba->dev->power.runtime_status, + hba->dev->power.runtime_error); + } + + return 0; /* Cannot return a failure, otherwise, the I/O will hang. */ } static void ufs_mtk_dbg_register_dump(struct ufs_hba *hba) |