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authorMarcin Wojtas <mw@semihalf.com>2018-01-18 13:31:41 +0100
committerDavid S. Miller <davem@davemloft.net>2018-01-22 10:57:04 -0500
commit3395de96ae5998692bd86024d0d5e4dd55cd6cc3 (patch)
treec870b2a027636e19c4143a928b3913b86eb52185 /include/linux/property.h
parent7c6c57f2ab2c5113844fe187a7c45c4bd76dc671 (diff)
device property: Allow iterating over available child fwnodes
Implement a new helper function fwnode_get_next_available_child_node(), which enables obtaining next enabled child fwnode, which works on a similar basis to OF's of_get_next_available_child(). This commit also introduces a macro, thanks to which it is possible to iterate over the available fwnodes, using the new function described above. Signed-off-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/property.h')
-rw-r--r--include/linux/property.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/property.h b/include/linux/property.h
index e05889fdbb14..5b0563ad79a5 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -83,11 +83,17 @@ struct fwnode_handle *fwnode_get_next_parent(
struct fwnode_handle *fwnode);
struct fwnode_handle *fwnode_get_next_child_node(
const struct fwnode_handle *fwnode, struct fwnode_handle *child);
+struct fwnode_handle *fwnode_get_next_available_child_node(
+ const struct fwnode_handle *fwnode, struct fwnode_handle *child);
#define fwnode_for_each_child_node(fwnode, child) \
for (child = fwnode_get_next_child_node(fwnode, NULL); child; \
child = fwnode_get_next_child_node(fwnode, child))
+#define fwnode_for_each_available_child_node(fwnode, child) \
+ for (child = fwnode_get_next_available_child_node(fwnode, NULL); child;\
+ child = fwnode_get_next_available_child_node(fwnode, child))
+
struct fwnode_handle *device_get_next_child_node(
struct device *dev, struct fwnode_handle *child);