iommu: add missing include
Fix a warning in of_iommu.c:
drivers/iommu/of_iommu.c:38:5: warning: no previous prototype for 'of_get_dma_window' [-Wmissing-prototypes]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Hiroshi DOYU <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index ee249bc..e550ccb 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -20,6 +20,7 @@
#include <linux/export.h>
#include <linux/limits.h>
#include <linux/of.h>
+#include <linux/of_iommu.h>
/**
* of_get_dma_window - Parse *dma-window property and returns 0 if found.