[PATCH v2 1/3] of/platform: teardown DMA mappings on device destruction

Will Deacon will.deacon at arm.com
Wed Jan 14 11:13:21 PST 2015

Now that we can create and attach to IOMMU domains via of_dma_configure,
make sure we give the architecture a chance to tear them down when a
platform or amba device is destroyed.

Reported-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Signed-off-by: Will Deacon <will.deacon at arm.com>
 drivers/of/platform.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 5b33c6a21807..3f61d668ded7 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -526,6 +526,7 @@ static int of_platform_device_destroy(struct device *dev, void *data)
+	of_dma_deconfigure(dev);
 	of_node_clear_flag(dev->of_node, OF_POPULATED);
 	of_node_clear_flag(dev->of_node, OF_POPULATED_BUS);
 	return 0;

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