In some cases it would be useful to supply predefined descriptor
of the resource. For this, introduce DEFINE_RES_NAMED_DESC() macro.

While at it, provide DEFINE_RES() that takes only start, size,
and flags.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 include/linux/ioport.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index f437502224cd..a740aebc372d 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -157,15 +157,20 @@ enum {
 };
 
 /* helpers to define resources */
-#define DEFINE_RES_NAMED(_start, _size, _name, _flags)			\
+#define DEFINE_RES_NAMED_DESC(_start, _size, _name, _flags, _desc)	\
 (struct resource) {							\
 		.start = (_start),					\
 		.end = (_start) + (_size) - 1,				\
 		.name = (_name),					\
 		.flags = (_flags),					\
-		.desc = IORES_DESC_NONE,				\
+		.desc = (_desc),					\
 	}
 
+#define DEFINE_RES_NAMED(_start, _size, _name, _flags)			\
+	DEFINE_RES_NAMED_DESC(_start, _size, _name, _flags, IORES_DESC_NONE)
+#define DEFINE_RES(_start, _size, _flags)				\
+	DEFINE_RES_NAMED(_start, _size, NULL, _flags)
+
 #define DEFINE_RES_IO_NAMED(_start, _size, _name)			\
 	DEFINE_RES_NAMED((_start), (_size), (_name), IORESOURCE_IO)
 #define DEFINE_RES_IO(_start, _size)					\
-- 
2.47.2