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>