bcma: move PCI IRQ control function to host specific code

This function isn't really related to any bus core. It touches PCI
device config registers only, so move it to the (PCI) host file.

Signed-off-by: Rafał Miłecki <[e-mail]>
Signed-off-by: Kalle Valo <[e-mail]>

drivers/bcma/driver_pci.c

···
 }
 EXPORT_SYMBOL_GPL(bcma_core_pci_power_save);
 
-int bcma_core_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_core_pci_irq_ctl);
-
 static void bcma_core_pci_extend_L1timer(struct bcma_drv_pci *pc, bool extend)
 {
 	u32 w;

drivers/bcma/host_pci.c

···
 		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);

drivers/net/wireless/b43/main.c

···
 	switch (dev->dev->bus_type) {
 #ifdef CONFIG_B43_BCMA
 	case B43_BUS_BCMA:
-		bcma_core_pci_irq_ctl(dev->dev->bdev->bus,
+		bcma_host_pci_irq_ctl(dev->dev->bdev->bus,
 				      dev->dev->bdev, true);
 		bcma_host_pci_up(dev->dev->bdev->bus);
 		break;

drivers/net/wireless/brcm80211/brcmsmac/main.c

···
 	 * Configure pci/pcmcia here instead of in brcms_c_attach()
 	 * to allow mfg hotswap:  down, hotswap (chip power cycle), up.
 	 */
-	bcma_core_pci_irq_ctl(wlc_hw->d11core->bus, wlc_hw->d11core,
+	bcma_host_pci_irq_ctl(wlc_hw->d11core->bus, wlc_hw->d11core,
 			      true);
 
 	/*

include/linux/bcma/bcma.h

···
 #ifdef CONFIG_BCMA_HOST_PCI
 extern void bcma_host_pci_up(struct bcma_bus *bus);
 extern void bcma_host_pci_down(struct bcma_bus *bus);
+extern int bcma_host_pci_irq_ctl(struct bcma_bus *bus,
+				 struct bcma_device *core, bool enable);
 #else
 static inline void bcma_host_pci_up(struct bcma_bus *bus)
 {
 }
 static inline void bcma_host_pci_down(struct bcma_bus *bus)
 {
+}
+static inline int bcma_host_pci_irq_ctl(struct bcma_bus *bus,
+					struct bcma_device *core, bool enable)
+{
+	if (bus->hosttype == BCMA_HOSTTYPE_PCI)
+		return -ENOTSUPP;
+	return 0;
 }
 #endif
 

include/linux/bcma/bcma_driver_pci.h

···
 #define pcicore_write16(pc, offset, val)	bcma_write16((pc)->core, offset, val)
 #define pcicore_write32(pc, offset, val)	bcma_write32((pc)->core, offset, val)
 
-extern int bcma_core_pci_irq_ctl(struct bcma_bus *bus,
-				 struct bcma_device *core, bool enable);
 extern void bcma_core_pci_power_save(struct bcma_bus *bus, bool up);
 
 extern int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev);