arch/microblaze: Move dma_mask from of_device into pdev_archdata

By moving dma_mask into pdev_archdata, and adding archdata to
struct of_device, it makes it possible to substitute of_device
with struct platform_device, which is a stepping stone to
removing the of_platform bus entirely.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

4 files changed, 4 insertions, 3 deletions

diff --git a/arch/microblaze/include/asm/device.h b/arch/microblaze/include/asm/device.h
index 15b0058aa7ff..123b2fe72d01 100644
--- a/arch/microblaze/include/asm/device.h
+++ b/arch/microblaze/include/asm/device.h
@@ -18,6 +18,7 @@ struct dev_archdata {
 };
 
 struct pdev_archdata {
+        u64 dma_mask;
 };
 
 #endif /* _ASM_MICROBLAZE_DEVICE_H */
diff --git a/arch/microblaze/include/asm/of_device.h b/arch/microblaze/include/asm/of_device.h
index ab25a40b481c..73cb98040982 100644
--- a/arch/microblaze/include/asm/of_device.h
+++ b/arch/microblaze/include/asm/of_device.h
@@ -21,8 +21,8 @@
  * probed using OF properties.
  */
 struct of_device {
-        u64                     dma_mask; /* DMA mask */
         struct device           dev; /* Generic device interface */
+        struct pdev_archdata    archdata;
 };
 
 extern ssize_t of_device_get_modalias(struct of_device *ofdev,
diff --git a/arch/microblaze/kernel/of_device.c b/arch/microblaze/kernel/of_device.c
index ac7e6e10d0ab..b372787886ed 100644
--- a/arch/microblaze/kernel/of_device.c
+++ b/arch/microblaze/kernel/of_device.c
@@ -50,7 +50,7 @@ struct of_device *of_device_alloc(struct device_node *np,
                 return NULL;
 
         dev->dev.of_node = of_node_get(np);
-        dev->dev.dma_mask = &dev->dma_mask;
+        dev->dev.dma_mask = &dev->archdata.dma_mask;
         dev->dev.parent = parent;
         dev->dev.release = of_release_dev;
 
diff --git a/arch/microblaze/kernel/of_platform.c b/arch/microblaze/kernel/of_platform.c
index 46a1e105a6bd..ccf6f4257f4b 100644
--- a/arch/microblaze/kernel/of_platform.c
+++ b/arch/microblaze/kernel/of_platform.c
@@ -47,7 +47,7 @@ struct of_device *of_platform_device_create(struct device_node *np,
         if (!dev)
                 return NULL;
 
-        dev->dma_mask = 0xffffffffUL;
+        dev->archdata.dma_mask = 0xffffffffUL;
         dev->dev.bus = &of_platform_bus_type;
 
         /* We do not fill the DMA ops for platform devices by default.