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authorBoris BREZILLON <boris.brezillon@free-electrons.com>2014-09-22 23:37:55 +0400
committerLee Jones <lee.jones@linaro.org>2014-09-26 11:24:01 +0400
commit4f08df1b06bb4022fab5a2a916f455915856ed9e (patch)
treeb5c0deacc0f1c9cdba180b83770b83e4f360f656 /drivers/mfd
parentab27c44754964aedd9f9ba74326d74e5e2a3c74f (diff)
downloadlinux-4f08df1b06bb4022fab5a2a916f455915856ed9e.tar.xz
mfd: Inherit coherent_dma_mask from parent device
dma_mask and dma_parms are already inherited from the parent device but dma_coherent_mask was left uninitialized (set to zero thanks to kzalloc). Set sub-device coherent_dma_mask to its parent value to simplify sub-drivers making use of dma coherent helper functions (those drivers currently have to explicitly set the dma coherent mask using dma_set_coherent_mask function). Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/mfd-core.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 892d343193ad..5d0fbe1e097a 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -101,6 +101,7 @@ static int mfd_add_device(struct device *parent, int id,
pdev->dev.type = &mfd_dev_type;
pdev->dev.dma_mask = parent->dma_mask;
pdev->dev.dma_parms = parent->dma_parms;
+ pdev->dev.coherent_dma_mask = parent->coherent_dma_mask;
ret = regulator_bulk_register_supply_alias(
&pdev->dev, cell->parent_supplies,