perf/arm-cmn: Ensure port and device id bits are set properly

The portid_bits and deviceid_bits were set only for XP type nodes in
the arm_cmn_discover() and it confused other nodes to find XP nodes.
Copy the both bits from the XP nodes directly when it sets up a new
node.

Fixes: e79634b ("perf/arm-cmn: Refactor node ID handling. Again.")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20241121001334.331334-1-namhyung@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

drivers/perf/arm-cmn.c

@@ -2178,8 +2178,6 @@ static int arm_cmn_init_dtcs(struct arm_cmn *cmn)
 			continue;
 
 		xp = arm_cmn_node_to_xp(cmn, dn);
-		dn->portid_bits = xp->portid_bits;
-		dn->deviceid_bits = xp->deviceid_bits;
 		dn->dtc = xp->dtc;
 		dn->dtm = xp->dtm;
 		if (cmn->multi_dtm)
@@ -2420,6 +2418,8 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
 			}
 
 			arm_cmn_init_node_info(cmn, reg & CMN_CHILD_NODE_ADDR, dn);
+			dn->portid_bits = xp->portid_bits;
+			dn->deviceid_bits = xp->deviceid_bits;
 
 			switch (dn->type) {
 			case CMN_TYPE_DTC: