PCI: rcar: Remove rcar_pcie_setup_window() resource argument

rcar_pcie_setup_window() took both the window number and the resource,
which was redundant because we can look up the resource from the window
number.

Remove the "res" argument.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index ee20676..f033972 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -317,9 +317,10 @@
 	.write	= rcar_pcie_write_conf,
 };
 
-static void rcar_pcie_setup_window(int win, struct resource *res,
-				   struct rcar_pcie *pcie)
+static void rcar_pcie_setup_window(int win, struct rcar_pcie *pcie)
 {
+	struct resource *res = &pcie->res[win];
+
 	/* Setup PCIe address space mappings for each resource */
 	resource_size_t size;
 	u32 mask;
@@ -360,7 +361,7 @@
 		if (!res->flags)
 			continue;
 
-		rcar_pcie_setup_window(i, res, pcie);
+		rcar_pcie_setup_window(i, pcie);
 
 		if (res->flags & IORESOURCE_IO)
 			pci_ioremap_io(nr * SZ_64K, res->start);