diff options
| author | jongmin jeong <jjmin.jeong@samsung.com> | 2021-10-18 21:42:03 +0900 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-10-27 23:10:10 -0400 |
| commit | 10fb4f87438d99b2ef06aea38ca2f0454725e8b5 (patch) | |
| tree | de974abeea40e85e0318f37003ea8f7156dfb504 | |
| parent | a22bcfdbf10b4182e94ae98a641efa676170feaf (diff) | |
| download | linux-10fb4f87438d99b2ef06aea38ca2f0454725e8b5.tar.bz2 | |
scsi: ufs: Add quirk to enable host controller without PH configuration
Samsung ExynosAuto v9 SoC virtual hosts do not support device management.
Add a quirk to skip the physical host interface configuration part that
cannot be performed in the virtual host.
Link: https://lore.kernel.org/r/20211018124216.153072-3-chanho61.park@samsung.com
Cc: James E.J. Bottomley <jejb@linux.ibm.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Suggested-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: jongmin jeong <jjmin.jeong@samsung.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 3 | ||||
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.h | 6 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index dc7ce9eef0c7..f5ba8f953b87 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -8031,6 +8031,9 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool init_dev_params) if (ret) goto out; + if (hba->quirks & UFSHCD_QUIRK_SKIP_PH_CONFIGURATION) + goto out; + /* Debug counters initialization */ ufshcd_clear_dbg_ufs_stats(hba); diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index e67181a013e3..4ceb3c7e65b4 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -595,6 +595,12 @@ enum ufshcd_quirks { * support UIC command */ UFSHCD_QUIRK_BROKEN_UIC_CMD = 1 << 15, + + /* + * This quirk needs to be enabled if the host controller cannot + * support physical host configuration. + */ + UFSHCD_QUIRK_SKIP_PH_CONFIGURATION = 1 << 16, }; enum ufshcd_caps { |