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Commit 2ce80087 authored by Johannes Thumshirn's avatar Johannes Thumshirn Committed by Greg Kroah-Hartman
Browse files

mcb: introduce mcb_get_resource() 



Introduce mcb_get_resource() as a common accessor to a mcb device's memory or
IRQ resources.

Signed-off-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5aabd3b0

drivers/mcb/mcb-core.c

+19 −1
Original line number Diff line number Diff line
@@ -417,6 +417,22 @@ void mcb_bus_add_devices(const struct mcb_bus *bus) 
}

EXPORT_SYMBOL_GPL(mcb_bus_add_devices);



/**

 * mcb_get_resource() - get a resource for a mcb device

 * @dev: the mcb device

 * @type: the type of resource

 */

struct resource *mcb_get_resource(struct mcb_device *dev, unsigned int type)

{

	if (type == IORESOURCE_MEM)

		return &dev->mem;

	else if (type == IORESOURCE_IRQ)

		return &dev->irq;

	else

		return NULL;

}

EXPORT_SYMBOL_GPL(mcb_get_resource);



/**

 * mcb_request_mem() - Request memory

 * @dev: The @mcb_device the memory is for
@@ -460,7 +476,9 @@ EXPORT_SYMBOL_GPL(mcb_release_mem); 


static int __mcb_get_irq(struct mcb_device *dev)

{

	struct resource *irq = &dev->irq;

	struct resource *irq;



	irq = mcb_get_resource(dev, IORESOURCE_IRQ);



	return irq->start;

}

include/linux/mcb.h

+2 −0
Original line number Diff line number Diff line
@@ -136,5 +136,7 @@ extern struct resource *mcb_request_mem(struct mcb_device *dev, 
					const char *name);

extern void mcb_release_mem(struct resource *mem);

extern int mcb_get_irq(struct mcb_device *dev);

extern struct resource *mcb_get_resource(struct mcb_device *dev,

					 unsigned int type);



#endif /* _LINUX_MCB_H */