powerpc: Change archdata dma_data to a union

Sometimes this is used to hold a simple offset, and sometimes
it is used to hold a pointer.  This patch changes it to a union containing
void * and dma_addr_t.  get/set accessors are also provided, because it was
getting a bit ugly to get to the actual data.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index e9f4840096b3..bb8209e34931 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1117,7 +1117,7 @@ void __devinit pcibios_setup_bus_devices(struct pci_bus *bus)
 
                 /* Hook up default DMA ops */
                 sd->dma_ops = pci_dma_ops;
-                sd->dma_data = (void *)PCI_DRAM_OFFSET;
+                set_dma_offset(&dev->dev, PCI_DRAM_OFFSET);
 
                 /* Additional platform DMA/iommu setup */
                 if (ppc_md.pci_dma_dev_setup)