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authorBenedikt Spranger <b.spranger@linutronix.de>2013-08-13 11:08:38 +0200
committerLee Jones <lee.jones@linaro.org>2013-08-14 18:55:38 +0100
commitb018e1361bad361b47294fd09ae1f33f707dd933 (patch)
tree50ee1c1a6d002619a8cbb7c805431e9fdd89432c
parentbb3d5934201607d8514c9a481bd68b2bd9e5510d (diff)
downloadop-kernel-dev-b018e1361bad361b47294fd09ae1f33f707dd933.zip
op-kernel-dev-b018e1361bad361b47294fd09ae1f33f707dd933.tar.gz
mfd: core: Copy DMA mask and params from parent
The child device intends to perform DMA operations then it needs a dma mask and params set. This patches copies them from the parent device. Signed-off-by: Benedikt Spranger <b.spranger@linutronix.de> Signed-off-by: Holger Dengler <dengler@linutronix.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
-rw-r--r--drivers/mfd/mfd-core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 7604f4e..f421586 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -96,6 +96,8 @@ static int mfd_add_device(struct device *parent, int id,
pdev->dev.parent = parent;
pdev->dev.type = &mfd_dev_type;
+ pdev->dev.dma_mask = parent->dma_mask;
+ pdev->dev.dma_parms = parent->dma_parms;
if (parent->of_node && cell->of_compatible) {
for_each_child_of_node(parent->of_node, np) {
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