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authorSascha Hauer <s.hauer@pengutronix.de>2020-09-25 11:09:59 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2020-10-12 16:30:17 +0200
commit4dee9d16c01cec6f290f9ff25cda72416c8d2d3f (patch)
tree6ca40f110dfad0658f0f0749b2cd09d81d20f493 /drivers
parent9ddd7b037101828457867f21f54745f2f93a5406 (diff)
downloadbarebox-4dee9d16c01cec6f290f9ff25cda72416c8d2d3f.tar.gz
barebox-4dee9d16c01cec6f290f9ff25cda72416c8d2d3f.tar.xz
of: Add common device tree register function
The different architectures duplicate some code around unflattening and registering the device tree. Add common functions to reduce this duplication. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/of/base.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 0a2632f963..4e88af7b22 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1567,6 +1567,34 @@ int of_set_root_node(struct device_node *node)
return 0;
}
+void barebox_register_of(struct device_node *root)
+{
+ if (root_node)
+ return;
+
+ of_fix_tree(root);
+ of_set_root_node(root);
+
+ if (IS_ENABLED(CONFIG_OFDEVICE))
+ of_probe();
+}
+
+void barebox_register_fdt(const void *dtb)
+{
+ struct device_node *root;
+
+ if (root_node)
+ return;
+
+ root = of_unflatten_dtb(dtb);
+ if (IS_ERR(root)) {
+ pr_err("Cannot unflatten dtb: %pe\n", root);
+ return;
+ }
+
+ barebox_register_of(root);
+}
+
/**
* of_device_is_available - check if a device is available for use
*