[PATCH v2 14/22] PCI: iproc-platform: update PCI config space remap function

From: Lorenzo Pieralisi
Date: Mon Mar 27 2017 - 06:03:12 EST


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_ioremap_nopost* interface to make sure the correct
memory mappings for PCI configuration space are used.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Ray Jui <rjui@xxxxxxxxxxxx>
Cc: Jon Mason <jonmason@xxxxxxxxxxxx>
---
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..b13d4a2 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_ioremap_nopost(dev, reg.start,
+ resource_size(&reg));
if (!pcie->base) {
dev_err(dev, "unable to map controller registers\n");
return -ENOMEM;
--
2.10.0