From: Lorenzo Pieralisi Date: Wed, 19 Apr 2017 16:49:06 +0000 (+0100) Subject: PCI: tegra: Update PCI config space remap function X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3e02dc439b2bcb9911abb1632029a15590ba3b97;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git PCI: tegra: 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 correct memory mapping attributes to map config space regions to enforce configuration space non-posted writes behaviour. Signed-off-by: Lorenzo Pieralisi Signed-off-by: Bjorn Helgaas Cc: Thierry Reding --- diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c index ed8a93f2bfb5..2618f875a600 100644 --- a/drivers/pci/host/pci-tegra.c +++ b/drivers/pci/host/pci-tegra.c @@ -380,7 +380,7 @@ static struct tegra_pcie_bus *tegra_pcie_bus_alloc(struct tegra_pcie *pcie, unsigned int busnr) { struct device *dev = pcie->dev; - pgprot_t prot = pgprot_device(PAGE_KERNEL); + pgprot_t prot = pgprot_noncached(PAGE_KERNEL); phys_addr_t cs = pcie->cs->start; struct tegra_pcie_bus *bus; unsigned int i; @@ -1962,7 +1962,7 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie) rp->pcie = pcie; rp->np = port; - rp->base = devm_ioremap_resource(dev, &rp->regs); + rp->base = devm_pci_remap_cfg_resource(dev, &rp->regs); if (IS_ERR(rp->base)) return PTR_ERR(rp->base);