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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>
This commit is contained in:
Lorenzo Pieralisi 2017-04-19 17:49:05 +01:00 committed by Bjorn Helgaas
parent 53dfa17dfe
commit 26b758f775
1 changed files with 2 additions and 2 deletions
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4
drivers/pci/host/pci-xgene.c
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@ -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"); dev_err(dev, "can't get CSR resource\n");
return ret; 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)) if (IS_ERR(port->csr_base))
return PTR_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; struct resource *res;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "csr"); 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)) if (IS_ERR(port->csr_base))
return PTR_ERR(port->csr_base); return PTR_ERR(port->csr_base);