[ARM] ecard: add ecardm_iomap() / ecardm_iounmap()

Add devres ecardm_iomap() and ecardm_iounmap() for Acorn expansion
cards.  Convert all expansion card drivers to use them.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/include/asm-arm/ecard.h b/include/asm-arm/ecard.h
index 8f1000e..684fe06 100644
--- a/include/asm-arm/ecard.h
+++ b/include/asm-arm/ecard.h
@@ -226,6 +226,10 @@
 extern int ecard_request_resources(struct expansion_card *ec);
 extern void ecard_release_resources(struct expansion_card *ec);
 
+void __iomem *ecardm_iomap(struct expansion_card *ec, unsigned int res,
+			   unsigned long offset, unsigned long maxsize);
+#define ecardm_iounmap(__ec, __addr)	devm_iounmap(&(__ec)->dev, __addr)
+
 extern struct bus_type ecard_bus_type;
 
 #define ECARD_DEV(_d)	container_of((_d), struct expansion_card, dev)