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@xxxxxxxxxxxxxx>
Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
---
v2: pass in parent dev to relevant functions, to make DT parsing
work (spotted by Tim Harvey <tharvey@xxxxxxxxxxxxx>)
---
drivers/pci/host/pcie-designware.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 17ce88f79d2b..98c118e04dba 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>
@@ -492,7 +493,7 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
dw_pci.nr_controllers = 1;
dw_pci.private_data = (void **)&pp;
- pci_common_init(&dw_pci);
+ pci_common_init_dev(pp->dev, &dw_pci);
pci_assign_unassigned_resources();
#ifdef CONFIG_PCI_DOMAINS
dw_pci.domain++;
@@ -725,7 +726,7 @@ static struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys)
if (pp) {
pp->root_bus_nr = sys->busnr;
- bus = pci_scan_root_bus(NULL, sys->busnr, &dw_pcie_ops,
+ bus = pci_scan_root_bus(pp->dev, sys->busnr, &dw_pcie_ops,
sys, &sys->resources);
} else {
bus = NULL;
@@ -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)
--
1.9.0
--
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