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scsi: ufs: Add quirk to enable host controller without PH configuration

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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>
This commit is contained in:
jongmin jeong 2021-10-18 21:42:03 +09:00 committed by Martin K. Petersen
parent a22bcfdbf1
commit 10fb4f8743
2 changed files with 9 additions and 0 deletions
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3
drivers/scsi/ufs/ufshcd.c
View File

@ -8031,6 +8031,9 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool init_dev_params)
if (ret) if (ret)
goto out; goto out;
if (hba->quirks & UFSHCD_QUIRK_SKIP_PH_CONFIGURATION)
goto out;
/* Debug counters initialization */ /* Debug counters initialization */
ufshcd_clear_dbg_ufs_stats(hba); ufshcd_clear_dbg_ufs_stats(hba);

6
drivers/scsi/ufs/ufshcd.h
View File

@ -595,6 +595,12 @@ enum ufshcd_quirks {
* support UIC command * support UIC command
*/ */
UFSHCD_QUIRK_BROKEN_UIC_CMD = 1 << 15, 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 { enum ufshcd_caps {