On Tue, 2012-06-19 at 21:14 +0200, Alexander Graf wrote:
> We have device tree helpers that allow us to create single cell (u32)
> wide properties. However, when creating properties that contain an array of
> cells, we need to jump through hoops, manually passing in an array with
> converted endianness.
>
> To ease the pain of this, create a generic macro helper that allows us
> to pass the cells as arguments.
>
> Signed-off-by: Alexander Graf <ag...@suse.de>
Reviewed-by: Peter Crosthwaite <peter.crosthwa...@petalogix.com>
> ---
> device_tree.h | 12 ++++++++++++
> 1 files changed, 12 insertions(+), 0 deletions(-)
>
> diff --git a/device_tree.h b/device_tree.h
> index 4378685..1e671e2 100644
> --- a/device_tree.h
> +++ b/device_tree.h
> @@ -25,4 +25,16 @@ int qemu_devtree_setprop_string(void *fdt, const char
> *node_path,
> int qemu_devtree_nop_node(void *fdt, const char *node_path);
> int qemu_devtree_add_subnode(void *fdt, const char *name);
>
> +#define qemu_devtree_setprop_cells(fdt, node_path, property, ...)
> \
> + do {
> \
> + uint32_t qdt_tmp[] = { __VA_ARGS__ };
> \
> + int i;
> \
> +
> \
> + for (i = 0; i < ARRAY_SIZE(qdt_tmp); i++) {
> \
> + qdt_tmp[i] = cpu_to_be32(qdt_tmp[i]);
> \
> + }
> \
> + qemu_devtree_setprop(fdt, node_path, property, qdt_tmp,
> \
> + sizeof(qdt_tmp));
> \
> + } while (0)
> +
> #endif /* __DEVICE_TREE_H__ */
