PCI: xgene: Update PCI config space remap function

PCI configuration space should be mapped with a memory region type that
generates on the CPU host bus non-posted write transations. Update the
driver to use the devm_pci_remap_cfg* interface to make sure the correct
memory mappings for PCI configuration space are used.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Tanmay Inamdar <tinamdar@apm.com>

diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c
index 1a61087..de19898 100644 (file)
--- a/drivers/pci/host/pci-xgene.c
+++ b/drivers/pci/host/pci-xgene.c
@@ -248,7 +248,7 @@ static int xgene_pcie_ecam_init(struct pci_config_window *cfg, u32 ipversion)
                dev_err(dev, "can't get CSR resource\n");
                return ret;
        }
-       port->csr_base = devm_ioremap_resource(dev, &csr);
+       port->csr_base = devm_pci_remap_cfg_resource(dev, &csr);
        if (IS_ERR(port->csr_base))
                return PTR_ERR(port->csr_base);
 
@@ -359,7 +359,7 @@ static int xgene_pcie_map_reg(struct xgene_pcie_port *port,
        struct resource *res;
 
        res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "csr");
-       port->csr_base = devm_ioremap_resource(dev, res);
+       port->csr_base = devm_pci_remap_cfg_resource(dev, res);
        if (IS_ERR(port->csr_base))
                return PTR_ERR(port->csr_base);