So others can find out what depends on backlight devices, as specified in bindings/video/backlight/backlight.txt.
Signed-off-by: Tomeu Vizoso tomeu.vizoso@collabora.com ---
Changes in v2: None
drivers/video/backlight/backlight.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index bddc8b1..ab8f5e7 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -566,8 +566,22 @@ struct backlight_device *of_find_backlight_by_node(struct device_node *node) EXPORT_SYMBOL(of_find_backlight_by_node); #endif
+static void backlight_get_dependencies(struct fwnode_handle *fwnode, + struct list_head *deps) +{ + struct device_node *np; + + np = of_parse_phandle(to_of_node(fwnode), "backlight", 0); + if (!np) + return; + + fwnode_add_dependency(&np->fwnode, deps); +} + static void __exit backlight_class_exit(void) { + fwnode_remove_dependency_parser(backlight_get_dependencies); + class_destroy(backlight_class); }
@@ -586,6 +600,8 @@ static int __init backlight_class_init(void) mutex_init(&backlight_dev_list_mutex); BLOCKING_INIT_NOTIFIER_HEAD(&backlight_notifier);
+ fwnode_add_dependency_parser(backlight_get_dependencies); + return 0; }