From: Adrian Hunter adrian.hunter@intel.com
[ Upstream commit d968e99488c4b08259a324a89e4ed17bf36561a4 ]
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 [ adjusted patch context line numbers from 428 to 460 due to prerequisite backport ] Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/ufs/host/ufshcd-pci.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/ufs/host/ufshcd-pci.c b/drivers/ufs/host/ufshcd-pci.c index c548c726e7f63..4efac5d6796e5 100644 --- a/drivers/ufs/host/ufshcd-pci.c +++ b/drivers/ufs/host/ufshcd-pci.c @@ -460,7 +460,8 @@ static int ufs_intel_lkf_init(struct ufs_hba *hba) static int ufs_intel_adl_init(struct ufs_hba *hba) { hba->nop_out_timeout = 200; - hba->quirks |= UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8; + hba->quirks |= UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8 | + UFSHCD_QUIRK_PERFORM_LINK_STARTUP_ONCE; hba->caps |= UFSHCD_CAP_WB_EN; return ufs_intel_common_init(hba); }