devres: support addresses greater than an unsigned long via dev_ioremap

Use a resource_size_t instead of unsigned long since some arch's are
capable of having ioremap deal with addresses greater than the size of a
unsigned long.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

include/linux/io.h

@@ -58,9 +58,9 @@ static inline void devm_ioport_unmap(struct device *dev, void __iomem *addr)
 }
 #endif
 
-void __iomem * devm_ioremap(struct device *dev, unsigned long offset,
+void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,
 			    unsigned long size);
-void __iomem * devm_ioremap_nocache(struct device *dev, unsigned long offset,
+void __iomem *devm_ioremap_nocache(struct device *dev, resource_size_t offset,
 				    unsigned long size);
 void devm_iounmap(struct device *dev, void __iomem *addr);
 int check_signature(const volatile void __iomem *io_addr,

lib/devres.c

@@ -20,7 +20,7 @@ static int devm_ioremap_match(struct device *dev, void *res, void *match_data)
  *
  * Managed ioremap().  Map is automatically unmapped on driver detach.
  */
-void __iomem *devm_ioremap(struct device *dev, unsigned long offset,
+void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,
 			   unsigned long size)
 {
 	void __iomem **ptr, *addr;
@@ -49,7 +49,7 @@ EXPORT_SYMBOL(devm_ioremap);
  * Managed ioremap_nocache().  Map is automatically unmapped on driver
  * detach.
  */
-void __iomem *devm_ioremap_nocache(struct device *dev, unsigned long offset,
+void __iomem *devm_ioremap_nocache(struct device *dev, resource_size_t offset,
 				   unsigned long size)
 {
 	void __iomem **ptr, *addr;