bcma: pci: implement interrupts control

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/drivers/bcma/driver_pci.c b/drivers/bcma/driver_pci.c
index e757e4e3c7e2..789d68b4858b 100644
--- a/drivers/bcma/driver_pci.c
+++ b/drivers/bcma/driver_pci.c
@@ -161,3 +161,26 @@ void bcma_core_pci_init(struct bcma_drv_pci *pc)
 {
         bcma_pcicore_serdes_workaround(pc);
 }
+
+int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core,
+                          bool enable)
+{
+        struct pci_dev *pdev = pc->core->bus->host_pci;
+        u32 coremask, tmp;
+        int err;
+
+        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;
+}