[PATCH 13/20] PCI: iproc-platform: update PCI config space remap function

Lorenzo Pieralisi
2017-02-27T15:17:44Z

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>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Jon Mason <jonmason@broadcom.com>
---
drivers/pci/host/pcie-iproc-platform.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/host/pcie-iproc-platform.c b/drivers/pci/host/pcie-iproc-platform.c
index f4909bb..b48d0db 100644
--- a/drivers/pci/host/pcie-iproc-platform.c
+++ b/drivers/pci/host/pcie-iproc-platform.c
@@ -67,7 +67,8 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev)
return ret;
}

- pcie->base = devm_ioremap(dev, reg.start, resource_size(&reg));
+ pcie->base = devm_pci_remap_cfgspace(dev, reg.start,
+ resource_size(&reg));
if (!pcie->base) {
dev_err(dev, "unable to map controller registers\n");
return -ENOMEM;
--
2.10.0