Re: [PATCH v5 1/6] of_graph: add of_graph_get_local_port()

From: Rob Herring
Date: Thu Apr 30 2020 - 10:10:22 EST


On Sat, 18 Apr 2020 20:06:58 +0300, Dmitry Osipenko wrote:
> In some case, like a DRM display code for example, it's useful to silently
> check whether port node exists at all in a device-tree before proceeding
> with parsing the graph.
>
> This patch adds of_graph_get_local_port() which returns pointer to a local
> port node, or NULL if graph isn't specified in a device-tree for a given
> device node.
>
> Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
> ---
> drivers/of/property.c | 32 +++++++++++++++++++++++---------
> include/linux/of_graph.h | 7 +++++++
> 2 files changed, 30 insertions(+), 9 deletions(-)
>

Reviewed-by: Rob Herring <robh@xxxxxxxxxx>