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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 /include/linux/mcb.h | |
| 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 'include/linux/mcb.h')
| -rw-r--r-- | include/linux/mcb.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mcb.h b/include/linux/mcb.h index ee5200d660b0..4097ac9ea13a 100644 --- a/include/linux/mcb.h +++ b/include/linux/mcb.h @@ -76,6 +76,7 @@ struct mcb_device { int rev; struct resource irq; struct resource mem; + struct device *dma_dev; }; static inline struct mcb_device *to_mcb_device(struct device *dev) |