PCI: keystone: Move dw_pcie_setup_rc() out of ks_pcie_establish_link()

No functional change. Move dw_pcie_setup_rc() out of
ks_pcie_establish_link() so that ks_pcie_establish_linki() can be used only
to start the link.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

drivers/pci/controller/dwc/pci-keystone.c

@@ -86,12 +86,9 @@ DECLARE_PCI_FIXUP_ENABLE(PCI_ANY_ID, PCI_ANY_ID, quirk_limit_mrrs);
 static int ks_pcie_establish_link(struct keystone_pcie *ks_pcie)
 {
 	struct dw_pcie *pci = ks_pcie->pci;
-	struct pcie_port *pp = &pci->pp;
 	struct device *dev = pci->dev;
 	unsigned int retries;
 
-	dw_pcie_setup_rc(pp);
-
 	if (dw_pcie_link_up(pci)) {
 		dev_info(dev, "Link already up\n");
 		return 0;
@@ -266,6 +263,8 @@ static int __init ks_pcie_host_init(struct pcie_port *pp)
 	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
 	struct keystone_pcie *ks_pcie = to_keystone_pcie(pci);
 
+	dw_pcie_setup_rc(pp);
+
 	ks_pcie_establish_link(ks_pcie);
 	ks_dw_pcie_setup_rc_app_regs(ks_pcie);
 	ks_pcie_setup_interrupts(ks_pcie);