powerpc: expect all devices calling dma ops to have archdata set
Now that we set archdata for of_platform and platform devices via
platform_notify() we no longer need to special case having a NULL device
pointer or NULL archdata. It should be a driver error if this condition
shows up and the driver should be fixed.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 86cef7d..c69f2b5 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -109,18 +109,8 @@
* only ISA DMA device we support is the floppy and we have a hack
* in the floppy driver directly to get a device for us.
*/
-
- if (unlikely(dev == NULL) || dev->archdata.dma_ops == NULL) {
-#ifdef CONFIG_PPC64
+ if (unlikely(dev == NULL))
return NULL;
-#else
- /* Use default on 32-bit if dma_ops is not set up */
- /* TODO: Long term, we should fix drivers so that dev and
- * archdata dma_ops are set up for all buses.
- */
- return &dma_direct_ops;
-#endif
- }
return dev->archdata.dma_ops;
}
