linux-kernel - [PATCH v4 20/21] PCI: keystone-dw: update PCI config space remap function

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Message-Id: <20170419164913.19674-21-lorenzo.pieralisi@arm.com>
Date:   Wed, 19 Apr 2017 17:49:09 +0100
From:   Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To:     linux-pci@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Murali Karicheri <m-karicheri2@...com>
Subject: [PATCH v4 20/21] PCI: keystone-dw: 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@....com>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Murali Karicheri <m-karicheri2@...com>
---
 drivers/pci/dwc/pci-keystone-dw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/dwc/pci-keystone-dw.c b/drivers/pci/dwc/pci-keystone-dw.c
index 6b396f6..8bc626e 100644
--- a/drivers/pci/dwc/pci-keystone-dw.c
+++ b/drivers/pci/dwc/pci-keystone-dw.c
@@ -543,7 +543,7 @@ int __init ks_dw_pcie_host_init(struct keystone_pcie *ks_pcie,
 
 	/* Index 0 is the config reg. space address */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	pci->dbi_base = devm_ioremap_resource(dev, res);
+	pci->dbi_base = devm_pci_remap_cfg_resource(dev, res);
 	if (IS_ERR(pci->dbi_base))
 		return PTR_ERR(pci->dbi_base);
 
-- 
2.10.0