ssb: allow compilation on systems without PCI

Makes ssb work on system without a PCI bus.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/ssb/main.c

@@ -1165,15 +1165,19 @@ EXPORT_SYMBOL(ssb_dma_translation);
 
 int ssb_dma_set_mask(struct ssb_device *dev, u64 mask)
 {
+#ifdef CONFIG_SSB_PCIHOST
 	int err;
+#endif
 
 	switch (dev->bus->bustype) {
 	case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
 		err = pci_set_dma_mask(dev->bus->host_pci, mask);
 		if (err)
 			return err;
 		err = pci_set_consistent_dma_mask(dev->bus->host_pci, mask);
 		return err;
+#endif
 	case SSB_BUSTYPE_SSB:
 		return dma_set_mask(dev->dev, mask);
 	default:
@@ -1188,13 +1192,15 @@ void * ssb_dma_alloc_consistent(struct ssb_device *dev, size_t size,
 {
 	switch (dev->bus->bustype) {
 	case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
 		if (gfp_flags & GFP_DMA) {
 			/* Workaround: The PCI API does not support passing
 			 * a GFP flag. */
 			return dma_alloc_coherent(&dev->bus->host_pci->dev,
 						  size, dma_handle, gfp_flags);
 		}
 		return pci_alloc_consistent(dev->bus->host_pci, size, dma_handle);
+#endif
 	case SSB_BUSTYPE_SSB:
 		return dma_alloc_coherent(dev->dev, size, dma_handle, gfp_flags);
 	default:
@@ -1210,6 +1216,7 @@ void ssb_dma_free_consistent(struct ssb_device *dev, size_t size,
 {
 	switch (dev->bus->bustype) {
 	case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
 		if (gfp_flags & GFP_DMA) {
 			/* Workaround: The PCI API does not support passing
 			 * a GFP flag. */
@@ -1220,6 +1227,7 @@ void ssb_dma_free_consistent(struct ssb_device *dev, size_t size,
 		pci_free_consistent(dev->bus->host_pci, size,
 				    vaddr, dma_handle);
 		return;
+#endif
 	case SSB_BUSTYPE_SSB:
 		dma_free_coherent(dev->dev, size, vaddr, dma_handle);
 		return;