ufs: add link status to ufshci

Add link status to ufshci.
Signed-off-by: NJoao Pinto <jpinto@synopsys.com>
Acked-by: NTomas Winkler <tomas.winkler@intel.com>
Reviewed-by: NHannes Reinecke <hare@suse.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/ufshci.h

@@ -220,6 +220,12 @@ enum {
 #define UIC_ARG_ATTR_TYPE(t)		(((t) & 0xFF) << 16)
 #define UIC_GET_ATTR_ID(v)		(((v) >> 16) & 0xFFFF)
 
+/* Link Status*/
+enum link_status {
+	UFSHCD_LINK_IS_DOWN	= 1,
+	UFSHCD_LINK_IS_UP	= 2,
+};
+
 /* UIC Commands */
 enum uic_cmd_dme {
 	UIC_CMD_DME_GET			= 0x01,