[PATCH 3/5] drm: convert drivers to use of_graph_get_remote_node

[Eric Anholt]

Rob Herring <robh at kernel.org> writes:

> Convert drivers to use the new of_graph_get_remote_node() helper
> instead of parsing the endpoint node and then getting the remote device
> node. Now drivers can just specify the device node and which
> port/endpoint and get back the connected remote device node. The details
> of the graph binding are nicely abstracted into the core OF graph code.
>
> This changes some error messages to debug messages (in the graph core).
> Graph connections are often "no connects" depending on the particular
> board, so we want to avoid spurious messages. Plus the kernel is not a
> DT validator.

For vc4,

Tested-by: Eric Anholt <eric at anholt.net>

Thanks for making this easier.
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