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Signed-off-by: Saravana Kannan --- drivers/base/core.c | 10 ++++++++++ drivers/of/dynamic.c | 8 ++++++++ include/linux/fwnode.h | 2 ++ 3 files changed, 20 insertions(+) diff --git a/drivers/base/core.c b/drivers/base/core.c index 5f4e03336e68..d856f9c5d601 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -237,6 +237,16 @@ static void __fw_devlink_pickup_dangling_consumers(struct fwnode_handle *fwnode, __fw_devlink_pickup_dangling_consumers(child, new_sup); } + +void fw_devlink_pickup_dangling_consumers(struct fwnode_handle *child, + struct fwnode_handle *parent) +{ + mutex_lock(&fwnode_link_lock); + __fw_devlink_pickup_dangling_consumers(child, parent); + __fw_devlink_link_to_consumers(parent->dev); + mutex_unlock(&fwnode_link_lock); +} + static DEFINE_MUTEX(device_links_lock); DEFINE_STATIC_SRCU(device_links_srcu); diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c index 19a1a38554f2..0a936f46820e 100644 --- a/drivers/of/dynamic.c +++ b/drivers/of/dynamic.c @@ -237,6 +237,7 @@ static void __of_attach_node(struct device_node *np) int of_attach_node(struct device_node *np) { struct of_reconfig_data rd; + struct fwnode_handle *fwnode, *parent; memset(&rd, 0, sizeof(rd)); rd.dn = np; @@ -246,6 +247,13 @@ int of_attach_node(struct device_node *np) mutex_unlock(&of_mutex); of_reconfig_notify(OF_RECONFIG_ATTACH_NODE, &rd); + fwnode = of_fwnode_handle(np); + fwnode_for_each_parent_node(fwnode, parent) + if (parent->dev) { + fw_devlink_pickup_dangling_consumers(fwnode, parent); + fwnode_handle_put(parent); + break; + } return 0; } diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h index 0d79070c5a70..4b3f697a90e8 100644 --- a/include/linux/fwnode.h +++ b/include/linux/fwnode.h @@ -220,6 +220,8 @@ int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup, u8 flags); void fwnode_links_purge(struct fwnode_handle *fwnode); void fw_devlink_purge_absent_suppliers(struct fwnode_handle *fwnode); +void fw_devlink_pickup_dangling_consumers(struct fwnode_handle *child, + struct fwnode_handle *parent); bool fw_devlink_is_strict(void); #endif