1 files changed, 5 insertions, 14 deletions

diff --git a/drivers/pci/controller/pcie-rcar-host.c b/drivers/pci/controller/pcie-rcar-host.c
index 3a8e749b4904..bf10f1cf04f4 100644
--- a/drivers/pci/controller/pcie-rcar-host.c
+++ b/drivers/pci/controller/pcie-rcar-host.c
@@ -54,7 +54,6 @@ struct rcar_pcie_host {
 	struct phy		*phy;
 	void __iomem		*base;
 	struct list_head	resources;
-	int			root_bus_nr;
 	struct clk		*bus_clk;
 	struct			rcar_msi msi;
 	int			(*phy_init_fn)(struct rcar_pcie_host *host);
@@ -100,22 +99,14 @@ static int rcar_pcie_config_access(struct rcar_pcie_host *host,
 		if (dev != 0)
 			return PCIBIOS_DEVICE_NOT_FOUND;
 
-		if (access_type == RCAR_PCI_ACCESS_READ) {
+		if (access_type == RCAR_PCI_ACCESS_READ)
 			*data = rcar_pci_read_reg(pcie, PCICONF(index));
-		} else {
-			/* Keep an eye out for changes to the root bus number */
-			if (pci_is_root_bus(bus) && (reg == PCI_PRIMARY_BUS))
-				host->root_bus_nr = *data & 0xff;
-
+		else
 			rcar_pci_write_reg(pcie, *data, PCICONF(index));
-		}
 
 		return PCIBIOS_SUCCESSFUL;
 	}
 
-	if (host->root_bus_nr < 0)
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
 	/* Clear errors */
 	rcar_pci_write_reg(pcie, rcar_pci_read_reg(pcie, PCIEERRFR), PCIEERRFR);
 
@@ -124,7 +115,7 @@ static int rcar_pcie_config_access(struct rcar_pcie_host *host,
 		PCIE_CONF_DEV(dev) | PCIE_CONF_FUNC(func) | reg, PCIECAR);
 
 	/* Enable the configuration access */
-	if (bus->parent->number == host->root_bus_nr)
+	if (pci_is_root_bus(bus->parent))
 		rcar_pci_write_reg(pcie, CONFIG_SEND_ENABLE | TYPE0, PCIECCTLR);
 	else
 		rcar_pci_write_reg(pcie, CONFIG_SEND_ENABLE | TYPE1, PCIECCTLR);
@@ -215,6 +206,7 @@ static struct pci_ops rcar_pcie_ops = {
 static int rcar_pcie_setup(struct list_head *resource,
 			   struct rcar_pcie_host *host)
 {
+	struct pci_host_bridge *bridge = pci_host_bridge_from_priv(host);
 	struct resource_entry *win;
 	int i = 0;
 
@@ -232,7 +224,7 @@ static int rcar_pcie_setup(struct list_head *resource,
 			i++;
 			break;
 		case IORESOURCE_BUS:
-			host->root_bus_nr = res->start;
+			bridge->busnr = res->start;
 			break;
 		default:
 			continue;
@@ -338,7 +330,6 @@ static int rcar_pcie_enable(struct rcar_pcie_host *host)
 	pci_add_flags(PCI_REASSIGN_ALL_BUS);
 
 	bridge->sysdata = host;
-	bridge->busnr = host->root_bus_nr;
 	bridge->ops = &rcar_pcie_ops;
 	bridge->map_irq = of_irq_parse_and_map_pci;
 	bridge->swizzle_irq = pci_common_swizzle;