Re: [PATCH v4 16/17] FDT: Add a helper to get specified name subnode

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

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

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

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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...

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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.

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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