POWERPC: Set dma_data correctly for direct_ops on pasemi

More late-caught fallout from the mainline merge.  Commit
35e4a6e26d0c6bc7f32087db61f0fb3666531183 ("[POWERPC] Use
archdata.dma_data in dma_direct_ops and add the offset") claimed

  "Now that all platforms using dma_direct_offset setup the
   archdata.dma_data correctly, ..."

..but nope -- the pasemi iommu setup code that disables translation on
the DMA pci device didn't set dma_data correctly.

This fixes it.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/powerpc/platforms/pasemi/iommu.c

@@ -182,8 +182,10 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev)
 	 * CONFIG_PPC_PASEMI_IOMMU_DMA_FORCE at build time.
 	 */
 	if (dev->vendor == 0x1959 && dev->device == 0xa007 &&
-	    !firmware_has_feature(FW_FEATURE_LPAR))
+	    !firmware_has_feature(FW_FEATURE_LPAR)) {
 		dev->dev.archdata.dma_ops = &dma_direct_ops;
+		dev->dev.archdata.dma_data = 0;
+	}
 #endif
 
 	dev->dev.archdata.dma_data = &iommu_table_iobmap;