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path: root/drivers/of/device.c
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Diffstat (limited to 'drivers/of/device.c')
-rw-r--r--drivers/of/device.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/of/device.c b/drivers/of/device.c
index 064c818105bd..33d85511d790 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -76,6 +76,8 @@ int of_device_add(struct platform_device *ofdev)
* of_dma_configure - Setup DMA configuration
* @dev: Device to apply DMA configuration
* @np: Pointer to OF node having DMA configuration
+ * @force_dma: Whether device is to be set up by of_dma_configure() even if
+ * DMA capability is not explicitly described by firmware.
*
* Try to get devices's DMA configuration from DT and update it
* accordingly.
@@ -84,7 +86,7 @@ int of_device_add(struct platform_device *ofdev)
* can use a platform bus notifier and handle BUS_NOTIFY_ADD_DEVICE events
* to fix up DMA configuration.
*/
-int of_dma_configure(struct device *dev, struct device_node *np)
+int of_dma_configure(struct device *dev, struct device_node *np, bool force_dma)
{
u64 dma_addr, paddr, size = 0;
int ret;
@@ -100,7 +102,7 @@ int of_dma_configure(struct device *dev, struct device_node *np)
* DMA configuration regardless of whether "dma-ranges" is
* correctly specified or not.
*/
- if (!dev->bus->force_dma)
+ if (!force_dma)
return ret == -ENODEV ? 0 : ret;
dma_addr = offset = 0;