PCI: xgene: Drop XGENE_PCIE_IP_VER_UNKN

XGENE_PCIE_IP_VER_UNKN is only refered to when probing for the
original XGene PCIe implementation, and get immediately overridden
if the device has the "apm,xgene-pcie" compatible string.

Given that the only way to get there is by finding this very string in
the DT, it is obvious that we will always overwrite the version with
XGENE_PCIE_IP_VER_1.

Drop the whole thing.

Signed-off-by: Marc Zyngier <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: Marc Zyngier

drivers/pci/controller/pci-xgene.c

@@ -54,7 +54,6 @@
 #define XGENE_V1_PCI_EXP_CAP		0x40
 
 /* PCIe IP version */
-#define XGENE_PCIE_IP_VER_UNKN		0
 #define XGENE_PCIE_IP_VER_1		1
 #define XGENE_PCIE_IP_VER_2		2
 
@@ -630,10 +629,7 @@ static int xgene_pcie_probe(struct platform_device *pdev)
 
 	port->node = of_node_get(dn);
 	port->dev = dev;
-
-	port->version = XGENE_PCIE_IP_VER_UNKN;
-	if (of_device_is_compatible(port->node, "apm,xgene-pcie"))
-		port->version = XGENE_PCIE_IP_VER_1;
+	port->version = XGENE_PCIE_IP_VER_1;
 
 	ret = xgene_pcie_map_reg(port, pdev);
 	if (ret)