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authorLucas Stach <l.stach@pengutronix.de>2014-04-16 10:24:32 -0600
committerBjorn Helgaas <bhelgaas@google.com>2014-04-16 10:24:32 -0600
commitf5d3352b2751f8de7e06e23a04ac0b4c474075e9 (patch)
tree27ef650f23141829d5b4bb93b0b3ef1a259969f9 /drivers/pci/host/pci-tegra.c
parentf8f2fe7355fb04dd129d49ac0ad440beb44f0f79 (diff)
downloadop-kernel-dev-f5d3352b2751f8de7e06e23a04ac0b4c474075e9.zip
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PCI: tegra: Use new OF interrupt mapping when possible
Use new OF interrupt mapping (of_irq_parse_and_map_pci()) when possible. This is the recommended method of doing the IRQ mapping. For old devicetrees we fall back to the previous practice. This allows interrupts to be remapped across bridges. Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/pci/host/pci-tegra.c')
-rw-r--r--drivers/pci/host/pci-tegra.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 330f7e3..083cf37 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -639,10 +639,15 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys)
static int tegra_pcie_map_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
{
struct tegra_pcie *pcie = sys_to_pcie(pdev->bus->sysdata);
+ int irq;
tegra_cpuidle_pcie_irqs_in_use();
- return pcie->irq;
+ irq = of_irq_parse_and_map_pci(pdev, slot, pin);
+ if (!irq)
+ irq = pcie->irq;
+
+ return irq;
}
static void tegra_pcie_add_bus(struct pci_bus *bus)
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