[PATCH 6/7] PCI: designware: use new OF interrupt mapping when possible
From: l.stach@pengutronix.de (Lucas Stach)
Date: 2014-02-28 17:28:42
Also in:
linux-devicetree, linux-samsung-soc, linux-sh, linux-tegra
Subsystem:
pci subsystem, the rest · Maintainers:
Bjorn Helgaas, Linus Torvalds
This is the recommended method of doing the IRQ mapping. For old devicetrees we fall back to the previous practice. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> --- drivers/pci/host/pcie-designware.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 17ce88f79d2b..3e0c2af11528 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c@@ -17,6 +17,7 @@ #include <linux/module.h> #include <linux/msi.h> #include <linux/of_address.h> +#include <linux/of_pci.h> #include <linux/pci.h> #include <linux/pci_regs.h> #include <linux/types.h>
@@ -738,8 +739,13 @@ static struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys) static int dw_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { struct pcie_port *pp = sys_to_pcie(dev->bus->sysdata); + int irq; - return pp->irq; + irq = of_irq_parse_and_map_pci(dev, slot, pin); + if (!irq) + irq = pp->irq; + + return irq; } static void dw_pcie_add_bus(struct pci_bus *bus)
--
1.8.5.3