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PCI: tegra: Use new OF interrupt mapping when possible

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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>
This commit is contained in:
Lucas Stach 2014-04-16 10:24:32 -06:00 committed by Bjorn Helgaas
parent f8f2fe7355
commit f5d3352b27
1 changed files with 6 additions and 1 deletions
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7
drivers/pci/host/pci-tegra.c
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@ -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)