path: root/include
diff options
authorSimon Glass <>2016-05-01 13:52:33 -0600
committerSimon Glass <>2016-05-17 09:54:43 -0600
commitb6694a33c45530e4c260c7fd6c77cc8472c9412f (patch)
tree323243e95fa5f4be7971ac07735f64f6ce2e4d37 /include
parent6dd9faf8f97e1aad9961a480775612f6cbde27de (diff)
dm: blk: Add a comment as to why the bdev member is needed
This member should be explained, since it is not obvious why it is needed. Add a comment. Signed-off-by: Simon Glass <>
Diffstat (limited to 'include')
1 files changed, 5 insertions, 0 deletions
diff --git a/include/blk.h b/include/blk.h
index 3fa373e208..66a1c55cc8 100644
--- a/include/blk.h
+++ b/include/blk.h
@@ -63,6 +63,11 @@ struct blk_desc {
char product[20+1]; /* IDE Serial no, SCSI product */
char revision[8+1]; /* firmware revision */
+ /*
+ * For now we have a few functions which take struct blk_desc as a
+ * parameter. This field allows them to look up the associated
+ * device. Once these functions are removed we can drop this field.
+ */
struct udevice *bdev;
unsigned long (*block_read)(struct blk_desc *block_dev,
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