Convert the tegra host PCI driver to use the generic config access
functions.
Signed-off-by: Rob Herring <r...@kernel.org>
Cc: Thierry Reding <thierry.red...@gmail.com>
Cc: Bjorn Helgaas <bhelg...@google.com>
Cc: Stephen Warren <swar...@wwwdotorg.org>
Cc: Alexandre Courbot <gnu...@gmail.com>
Cc: linux-te...@vger.kernel.org
Cc: linux-...@vger.kernel.org
---
drivers/pci/host/pci-tegra.c | 55 +++-----------------------------------------
1 file 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)
--
2.1.0
--
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