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mfd: core: Copy DMA mask and params from parent

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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>
This commit is contained in:
Benedikt Spranger 2013-08-13 11:08:38 +02:00 committed by Lee Jones
parent bb3d593420
commit b018e1361b
1 changed files with 2 additions and 0 deletions
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2
drivers/mfd/mfd-core.c
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@ -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) {