Commit 10fb4f87 authored by jongmin jeong's avatar jongmin jeong Committed by Martin K. Petersen
Browse files

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: default avatarAlim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: default avatarAlim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: default avatarjongmin jeong <jjmin.jeong@samsung.com>
Signed-off-by: default avatarChanho Park <chanho61.park@samsung.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent a22bcfdb

drivers/scsi/ufs/ufshcd.c

+3 −0
Original line number Diff line number Diff line
@@ -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);

drivers/scsi/ufs/ufshcd.h

+6 −0
Original line number Diff line number Diff line
@@ -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 {