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| author | Michael Moese <michael.moese@men.de> | 2016-09-14 12:05:24 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-27 12:33:47 +0200 |
| commit | 2d8784df1a1c11ace4e244780facec1e945c5b4f (patch) | |
| tree | 5a29e7d2bcd98873dd13470ac492206a0b1292fa /drivers/mcb | |
| parent | 15bb81d334e99081e105b76e6d0b46657b4f4f2e (diff) | |
| download | lwn-2d8784df1a1c11ace4e244780facec1e945c5b4f.tar.gz lwn-2d8784df1a1c11ace4e244780facec1e945c5b4f.zip | |
mcb: Add a dma_device to mcb_device
When performing DMA operations on a MCB device, the device needed
for using the DMA API is "mcb_device->bus_carrier".
This is rather lengthy, so a shortcut is introduced to struct mcb_device
in order to ensure the MCB device driver uses the correct device for DMA
operations.
Signed-off-by: Michael Moese <michael.moese@men.de>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mcb')
| -rw-r--r-- | drivers/mcb/mcb-core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mcb/mcb-core.c b/drivers/mcb/mcb-core.c index 5306966efc11..921a5d2a802b 100644 --- a/drivers/mcb/mcb-core.c +++ b/drivers/mcb/mcb-core.c @@ -233,6 +233,7 @@ int mcb_device_register(struct mcb_bus *bus, struct mcb_device *dev) dev->dev.bus = &mcb_bus_type; dev->dev.parent = bus->dev.parent; dev->dev.release = mcb_release_dev; + dev->dma_dev = bus->carrier; device_id = dev->id; dev_set_name(&dev->dev, "mcb%d-16z%03d-%d:%d:%d", |