Re: [PATCH] of: return of_get_cpu_node from of_cpu_device_node_get if CPUs are not registered

From: Rob Herring
Date: Mon Jul 24 2017 - 12:01:10 EST


On Mon, Jul 24, 2017 at 8:55 AM, Sudeep Holla <sudeep.holla@xxxxxxx> wrote:
> Instead of the callsites choosing between of_cpu_device_node_get if the
> CPUs are registered as of_node is populated by then and of_get_cpu_node
> when the CPUs are not yet registered as CPU of_nodes are not yet stashed
> thereby needing to parse the device tree, we can call of_get_cpu_node
> in case the CPUs are not yet registered.
>
> This will allow to use of_cpu_device_node_get anywhere hiding the
> details from the caller.
>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: Frank Rowand <frowand.list@xxxxxxxxx>
> Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>
> ---
> include/linux/of_device.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Hi Rob,
>
> Let me know if you are OK with this change. I keep seeing different
> drivers calling of_get_cpu_node or of_cpu_device_node_get based on what
> they are aware of or copying from other place without knowing the
> details. I am trying to avoid that and ask to use of_cpu_device_node_get
> at all places instead.

Seems fine to me.

Acked-by: Rob Herring <robh@xxxxxxxxxx>