diff options
| author | Boris BREZILLON <boris.brezillon@free-electrons.com> | 2014-09-22 21:37:55 +0200 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2014-09-26 08:24:01 +0100 |
| commit | 4f08df1b06bb4022fab5a2a916f455915856ed9e (patch) | |
| tree | b5c0deacc0f1c9cdba180b83770b83e4f360f656 | |
| parent | ab27c44754964aedd9f9ba74326d74e5e2a3c74f (diff) | |
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>
| -rw-r--r-- | drivers/mfd/mfd-core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index 892d343193a..5d0fbe1e097 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, |