Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

scsi: ufs: ufs-pci: Set UFSHCD_QUIRK_PERFORM_LINK_STARTUP_ONCE for Intel ADL

Link startup becomes unreliable for Intel Alder Lake based host
controllers when a 2nd DME_LINKSTARTUP is issued unnecessarily. Employ
UFSHCD_QUIRK_PERFORM_LINK_STARTUP_ONCE to suppress that from happening.

Fixes: 7dc9fb47bc9a ("scsi: ufs: ufs-pci: Add support for Intel ADL")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251024085918.31825-4-adrian.hunter@intel.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

authored by

Adrian Hunter and committed by
Martin K. Petersen
d968e994 d34caa89

+2 -1
+2 -1
drivers/ufs/host/ufshcd-pci.c
··· 428 428 static int ufs_intel_adl_init(struct ufs_hba *hba) 429 429 { 430 430 hba->nop_out_timeout = 200; 431 - hba->quirks |= UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8; 431 + hba->quirks |= UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8 | 432 + UFSHCD_QUIRK_PERFORM_LINK_STARTUP_ONCE; 432 433 hba->caps |= UFSHCD_CAP_WB_EN; 433 434 return ufs_intel_common_init(hba); 434 435 }