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Commit 2d8784df authored by Michael Moese's avatar Michael Moese Committed by Greg Kroah-Hartman
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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: default avatarMichael Moese <michael.moese@men.de>
Signed-off-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 15bb81d3

drivers/mcb/mcb-core.c

+1 −0
Original line number Diff line number Diff line
@@ -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",

include/linux/mcb.h

+1 −0
Original line number Diff line number Diff line
@@ -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)