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authorRob Herring <robh@kernel.org>2015-01-09 20:34:48 -0600
committerBjorn Helgaas <bhelgaas@google.com>2015-01-30 16:14:43 -0600
commit0e7ac8de01d20a9e365dfa975720816eeb35ff1a (patch)
tree229f0819395945693cb287a1b50b0cba296ba593 /drivers/pci
parentb44923b78d11175d80a1693deb82bdcd13070ba9 (diff)
downloadop-kernel-dev-0e7ac8de01d20a9e365dfa975720816eeb35ff1a.zip
op-kernel-dev-0e7ac8de01d20a9e365dfa975720816eeb35ff1a.tar.gz
PCI: tegra: Convert to use generic config accessors
Convert the Tegra host PCI driver to use the generic config access functions. Tested-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Thierry Reding <treding@nvidia.com> CC: Stephen Warren <swarren@wwwdotorg.org> CC: Alexandre Courbot <gnurou@gmail.com> CC: linux-tegra@vger.kernel.org
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/host/pci-tegra.c55
1 files changed, 3 insertions, 52 deletions
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index a800ae9..44fd31b 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -480,59 +480,10 @@ static void __iomem *tegra_pcie_conf_address(struct pci_bus *bus,
return addr;
}
-static int tegra_pcie_read_conf(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 *value)
-{
- void __iomem *addr;
-
- addr = tegra_pcie_conf_address(bus, devfn, where);
- if (!addr) {
- *value = 0xffffffff;
- return PCIBIOS_DEVICE_NOT_FOUND;
- }
-
- *value = readl(addr);
-
- if (size == 1)
- *value = (*value >> (8 * (where & 3))) & 0xff;
- else if (size == 2)
- *value = (*value >> (8 * (where & 3))) & 0xffff;
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int tegra_pcie_write_conf(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 value)
-{
- void __iomem *addr;
- u32 mask, tmp;
-
- addr = tegra_pcie_conf_address(bus, devfn, where);
- if (!addr)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- if (size == 4) {
- writel(value, addr);
- return PCIBIOS_SUCCESSFUL;
- }
-
- if (size == 2)
- mask = ~(0xffff << ((where & 0x3) * 8));
- else if (size == 1)
- mask = ~(0xff << ((where & 0x3) * 8));
- else
- return PCIBIOS_BAD_REGISTER_NUMBER;
-
- tmp = readl(addr) & mask;
- tmp |= value << ((where & 0x3) * 8);
- writel(tmp, addr);
-
- return PCIBIOS_SUCCESSFUL;
-}
-
static struct pci_ops tegra_pcie_ops = {
- .read = tegra_pcie_read_conf,
- .write = tegra_pcie_write_conf,
+ .map_bus = tegra_pcie_conf_address,
+ .read = pci_generic_config_read32,
+ .write = pci_generic_config_write32,
};
static unsigned long tegra_pcie_port_get_pex_ctrl(struct tegra_pcie_port *port)
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