X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fio.h;h=6c7f0ba0d5faf473b6c2ffb60d1a0c957c007059;hb=040dec3b37e4b9ec15b359bf5744f1ceba39fe3e;hp=81877ea39309aea73cef4a63a3212c69ab5c9131;hpb=0ca9caae2d05ee0c4878aa3e2619cd23f4ad4cb4;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/io.h b/include/linux/io.h
index 81877ea3930..6c7f0ba0d5f 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -22,37 +22,49 @@
 #include <asm/io.h>
 #include <asm/page.h>
 
+struct device;
+
 void __iowrite32_copy(void __iomem *to, const void *from, size_t count);
 void __iowrite64_copy(void __iomem *to, const void *from, size_t count);
 
+#ifdef CONFIG_MMU
 int ioremap_page_range(unsigned long addr, unsigned long end,
 		       unsigned long phys_addr, pgprot_t prot);
+#else
+static inline int ioremap_page_range(unsigned long addr, unsigned long end,
+				     unsigned long phys_addr, pgprot_t prot)
+{
+	return 0;
+}
+#endif
 
-/**
- *	check_signature		-	find BIOS signatures
- *	@io_addr: mmio address to check
- *	@signature:  signature block
- *	@length: length of signature
- *
- *	Perform a signature comparison with the mmio address io_addr. This
- *	address should have been obtained by ioremap.
- *	Returns 1 on a match.
+/*
+ * Managed iomap interface
  */
+#ifdef CONFIG_HAS_IOPORT
+void __iomem * devm_ioport_map(struct device *dev, unsigned long port,
+			       unsigned int nr);
+void devm_ioport_unmap(struct device *dev, void __iomem *addr);
+#else
+static inline void __iomem *devm_ioport_map(struct device *dev,
+					     unsigned long port,
+					     unsigned int nr)
+{
+	return NULL;
+}
 
-static inline int check_signature(const volatile void __iomem *io_addr,
-	const unsigned char *signature, int length)
+static inline void devm_ioport_unmap(struct device *dev, void __iomem *addr)
 {
-	int retval = 0;
-	do {
-		if (readb(io_addr) != *signature)
-			goto out;
-		io_addr++;
-		signature++;
-		length--;
-	} while (length);
-	retval = 1;
-out:
-	return retval;
 }
+#endif
+
+void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,
+			    unsigned long size);
+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,
+			const unsigned char *signature, int length);
+void devm_ioremap_release(struct device *dev, void *res);
 
 #endif /* _LINUX_IO_H */