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Merge branch 'pci/controller/loongson'

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* pci/controller/loongson:
  PCI: loongson: Enable MSI in LS7A Root Complex
This commit is contained in:
Bjorn Helgaas 2024-07-19 10:10:28 -05:00
commit 145eec91b3
1 changed files with 13 additions and 0 deletions
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13
drivers/pci/controller/pci-loongson.c
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@ -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;