From 3601b572820ee5f3676ab24c068a4e011b72236d Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Thu, 17 May 2012 16:58:55 +0200 Subject: dt: add helper for phandle allocation Phandle references work by having 2 pieces: - a "phandle" 1-cell property in the device tree node - a reference to the same value in a property we want to point to the other node To generate the 1-cell property, we need an allocation mechanism that gives us a unique number space. This patch adds an allocator for these properties. Signed-off-by: Alexander Graf --- device_tree.h | 1 + 1 file changed, 1 insertion(+) (limited to 'device_tree.h') diff --git a/device_tree.h b/device_tree.h index 5f76f40..97af345 100644 --- a/device_tree.h +++ b/device_tree.h @@ -27,6 +27,7 @@ int qemu_devtree_setprop_phandle(void *fdt, const char *node_path, const char *property, const char *target_node_path); uint32_t qemu_devtree_get_phandle(void *fdt, const char *path); +uint32_t qemu_devtree_alloc_phandle(void *fdt); int qemu_devtree_nop_node(void *fdt, const char *node_path); int qemu_devtree_add_subnode(void *fdt, const char *name); -- cgit v1.1