diff options
Diffstat (limited to 'drivers/acpi/pci_irq.c')
| -rw-r--r-- | drivers/acpi/pci_irq.c | 27 |
1 files changed, 12 insertions, 15 deletions
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index c4a5c49809db..aabf8a965aff 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -69,11 +69,13 @@ static inline char pin_name(int pin) PCI IRQ Routing Table (PRT) Support -------------------------------------------------------------------------- */ -static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(int segment, - int bus, - int device, int pin) +static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(struct pci_dev *dev, + int pin) { struct acpi_prt_entry *entry = NULL; + int segment = pci_domain_nr(dev->bus); + int bus = dev->bus->number; + int device = PCI_SLOT(dev->devfn); if (!acpi_prt.count) return NULL; @@ -385,23 +387,18 @@ acpi_pci_free_irq(struct acpi_prt_entry *entry, * failure: return -1 */ static int -acpi_pci_irq_lookup(struct pci_bus *bus, - int device, - int pin, +acpi_pci_irq_lookup(struct pci_dev *dev, int pin, int *triggering, int *polarity, char **link, irq_lookup_func func) { struct acpi_prt_entry *entry = NULL; - int segment = pci_domain_nr(bus); - int bus_nr = bus->number; int ret; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Searching for _PRT entry for %04x:%02x:%02x[%c]\n", - segment, bus_nr, device, pin_name(pin))); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Searching for _PRT entry for %s[%c]\n", + pci_name(dev), pin_name(pin))); - entry = acpi_pci_irq_find_prt_entry(segment, bus_nr, device, pin); + entry = acpi_pci_irq_find_prt_entry(dev, pin); if (!entry) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "_PRT entry not found\n")); return -1; @@ -447,7 +444,7 @@ acpi_pci_irq_derive(struct pci_dev *dev, pin = bridge_pin; } - irq = acpi_pci_irq_lookup(bridge->bus, PCI_SLOT(bridge->devfn), + irq = acpi_pci_irq_lookup(bridge, pin, triggering, polarity, link, func); } @@ -493,7 +490,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev) * First we check the PCI IRQ routing table (PRT) for an IRQ. PRT * values override any BIOS-assigned IRQs set during boot. */ - gsi = acpi_pci_irq_lookup(dev->bus, PCI_SLOT(dev->devfn), pin, + gsi = acpi_pci_irq_lookup(dev, pin, &triggering, &polarity, &link, acpi_pci_allocate_irq); @@ -574,7 +571,7 @@ void acpi_pci_irq_disable(struct pci_dev *dev) /* * First we check the PCI IRQ routing table (PRT) for an IRQ. */ - gsi = acpi_pci_irq_lookup(dev->bus, PCI_SLOT(dev->devfn), pin, + gsi = acpi_pci_irq_lookup(dev, pin, &triggering, &polarity, NULL, acpi_pci_free_irq); /* |
