On Tue, Feb 23, 2016 at 5:13 AM, Shannon Zhao [off-list ref] wrote:

On 2016/2/9 13:04, Rob Herring wrote:

quoted

On Thu, Feb 4, 2016 at 9:05 PM, Shannon Zhao [off-list ref] wrote:

quoted

From: Shannon Zhao <redacted>

Sometimes it needs to check if there is a node in FDT by full path.

I'm confused. Are you searching by full path or...

quoted

Introduce this helper to get the specified name subnode if it exists.

name of sub node?

get the offset of sub node by specified name.

quoted

Either way, fdt_subnode_offset or fdt_path_offset doesn't work?

Ah，right，both of them should work. Does it need to add a wrapper in
drivers/of/fdt.c for them or directly use them with the parameter
initial_boot_params?

Add a wrapper in fdt.c.

Rob