of: amba: use of_dma_configure for AMBA devices

Commit 591c1e ("of: configure the platform device dma parameters)
introduced a common mechanism to configure DMA from DT properties.
AMBA devices created from DT can take advantage of this, too.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 0197725e033a..3b64d0bf5bba 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -160,11 +160,10 @@ EXPORT_SYMBOL(of_device_alloc);
  * can use Platform bus notifier and handle BUS_NOTIFY_ADD_DEVICE event
  * to fix up DMA configuration.
  */
-static void of_dma_configure(struct platform_device *pdev)
+static void of_dma_configure(struct device *dev)
 {
         u64 dma_addr, paddr, size;
         int ret;
-        struct device *dev = &pdev->dev;
 
         /*
          * Set default dma-mask to 32 bit. Drivers are expected to setup
@@ -229,7 +228,7 @@ static struct platform_device *of_platform_device_create_pdata(
         if (!dev)
                 goto err_clear_flag;
 
-        of_dma_configure(dev);
+        of_dma_configure(&dev->dev);
         dev->dev.bus = &platform_bus_type;
         dev->dev.platform_data = platform_data;
 
@@ -291,7 +290,6 @@ static struct amba_device *of_amba_device_create(struct device_node *node,
         }
 
         /* setup generic device info */
-        dev->dev.coherent_dma_mask = ~0;
         dev->dev.of_node = of_node_get(node);
         dev->dev.parent = parent;
         dev->dev.platform_data = platform_data;
@@ -299,6 +297,7 @@ static struct amba_device *of_amba_device_create(struct device_node *node,
                 dev_set_name(&dev->dev, "%s", bus_id);
         else
                 of_device_make_bus_id(&dev->dev);
+        of_dma_configure(&dev->dev);
 
         /* Allow the HW Peripheral ID to be overridden */
         prop = of_get_property(node, "arm,primecell-periphid", NULL);