Commit 145eec91 authored by Bjorn Helgaas's avatar Bjorn Helgaas
Browse files

Merge branch 'pci/controller/loongson' 

* pci/controller/loongson:
  PCI: loongson: Enable MSI in LS7A Root Complex
parents 99651337 a4bbcac1

drivers/pci/controller/pci-loongson.c

+13 −0
Original line number Diff line number Diff line
@@ -163,6 +163,19 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LOONGSON, 
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LOONGSON,

			DEV_LS7A_HDMI, loongson_pci_pin_quirk);



static void loongson_pci_msi_quirk(struct pci_dev *dev)

{

	u16 val, class = dev->class >> 8;



	if (class != PCI_CLASS_BRIDGE_HOST)

		return;



	pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &val);

	val |= PCI_MSI_FLAGS_ENABLE;

	pci_write_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, val);

}

DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LOONGSON, DEV_LS7A_PCIE_PORT5, loongson_pci_msi_quirk);



static struct loongson_pci *pci_bus_to_loongson_pci(struct pci_bus *bus)

{

	struct pci_config_window *cfg;