bootstd: Add a default method to get bootflows
The code in these functions turns out to often be the same. Add a default
get_bootflow() function and allow the drivers to select it by setting
the method to NULL.
This saves a little code space.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/bootdev.h b/include/bootdev.h
index d0ca51c..1e91d41 100644
--- a/include/bootdev.h
+++ b/include/bootdev.h
@@ -50,7 +50,10 @@
/** struct bootdev_ops - Operations for the bootdev uclass */
struct bootdev_ops {
/**
- * get_bootflow() - get a bootflow
+ * get_bootflow() - get a bootflow (optional)
+ *
+ * If this is NULL then the default implementaton is used, which is
+ * default_get_bootflow()
*
* @dev: Bootflow device to check
* @iter: Provides current dev, part, method to get. Should update