Couple of drivers in-tree, like state, depend on aliases for correct operation. If state node is added via overlay and oftree -p is called, driver would start probing, but fail because aliases weren't reloaded.
Fix this corner case by always just calling of_alias_scan() on every successful of_overlay_apply_tree to the live tree. No functional change yet, as the only user of this function is overlay application code of ARM QEMU machine, which happens at pure_initcall level, making of_alias_scan a no-op. Follow-up commit will move overlay application to happen after device tree is registered, necessitating this change. Signed-off-by: Ahmad Fatoum <[email protected]> --- drivers/of/overlay.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c index e6f6634d6042..20a43f5170c8 100644 --- a/drivers/of/overlay.c +++ b/drivers/of/overlay.c @@ -199,6 +199,10 @@ int of_overlay_apply_tree(struct device_node *root, pr_warn("failed to apply %s\n", fragment->name); } + /* We are patching the live tree, reload aliases */ + if (root == of_get_root_node()) + of_alias_scan(); + out_err: of_delete_node(resolved); -- 2.30.2 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
