diff options
Diffstat (limited to 'drivers/bcma/host_pci.c')
| -rw-r--r-- | drivers/bcma/host_pci.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c index a62a2f9..0856189 100644 --- a/drivers/bcma/host_pci.c +++ b/drivers/bcma/host_pci.c @@ -351,3 +351,37 @@ void bcma_host_pci_down(struct bcma_bus *bus) bcma_core_pci_down(&bus->drv_pci[0]); } EXPORT_SYMBOL_GPL(bcma_host_pci_down); + +/* See also si_pci_setup */ +int bcma_host_pci_irq_ctl(struct bcma_bus *bus, struct bcma_device *core, + bool enable) +{ + struct pci_dev *pdev; + u32 coremask, tmp; + int err = 0; + + if (bus->hosttype != BCMA_HOSTTYPE_PCI) { + /* This bcma device is not on a PCI host-bus. So the IRQs are + * not routed through the PCI core. + * So we must not enable routing through the PCI core. */ + goto out; + } + + pdev = bus->host_pci; + + err = pci_read_config_dword(pdev, BCMA_PCI_IRQMASK, &tmp); + if (err) + goto out; + + coremask = BIT(core->core_index) << 8; + if (enable) + tmp |= coremask; + else + tmp &= ~coremask; + + err = pci_write_config_dword(pdev, BCMA_PCI_IRQMASK, tmp); + +out: + return err; +} +EXPORT_SYMBOL_GPL(bcma_host_pci_irq_ctl); |