X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fspi%2Fspi.h;h=4be01bb4437748c27f80aa79733c3a1360ca13e0;hb=82248a5e92793014d156a12dbcbba633794ce9f8;hp=a9cc29d466535f64b7f3cccdcc25c5f43cd96a40;hpb=a048d3aff8b828b6c0fa7ddd90a531248ab4e0f9;p=linux-2.6

diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index a9cc29d466..4be01bb443 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -778,7 +778,19 @@ spi_register_board_info(struct spi_board_info const *info, unsigned n)
  * use spi_new_device() to describe each device.  You can also call
  * spi_unregister_device() to start making that device vanish, but
  * normally that would be handled by spi_unregister_master().
+ *
+ * You can also use spi_alloc_device() and spi_add_device() to use a two
+ * stage registration sequence for each spi_device.  This gives the caller
+ * some more control over the spi_device structure before it is registered,
+ * but requires that caller to initialize fields that would otherwise
+ * be defined using the board info.
  */
+extern struct spi_device *
+spi_alloc_device(struct spi_master *master);
+
+extern int
+spi_add_device(struct spi_device *spi);
+
 extern struct spi_device *
 spi_new_device(struct spi_master *, struct spi_board_info *);