PCI: Add msi_controller setup_irqs() method for special multivector setup
Add a msi_controller setup_irqs() method so MSI chip providers can
implement their own multivector MSI setup.
[bhelgaas: changelog]
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Pratyush Anand <pratyush.anand@gmail.com>
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index d449714..74319f4 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -105,9 +105,12 @@
int __weak arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
{
+ struct msi_controller *chip = dev->bus->msi;
struct msi_desc *entry;
int ret;
+ if (chip && chip->setup_irqs)
+ return chip->setup_irqs(chip, dev, nvec, type);
/*
* If an architecture wants to support multiple MSI, it needs to
* override arch_setup_msi_irqs()