[PATCH v9 0/2] Silence missing-graph error for DRM bridges

[Dmitry Osipenko <digetx@gmail.com>]

Hi!

This small series improves DRM bridges code by silencing a noisy error
coming from of-graph code for the device-trees that are missing a
display bridge graph.

  graph: no port node found in ...

One example where this error happens is an older bridge-less DTB used
in conjunction with a newer kernel which has a display controller driver
that supports DRM bridges.

Changelog:

v9: - These two patches are factored out from [1] in order to ease applying
      of the patches.

    - The of_graph_presents() is renamed to of_graph_is_present() like it
      was requested by Rob Herring in the review comment to [1].

    - Added Rob's r-b.

    [1] https://patchwork.ozlabs.org/project/linux-tegra/list/?series=184102

Dmitry Osipenko (2):
  of_graph: add of_graph_is_present()
  drm/of: Make drm_of_find_panel_or_bridge() to check graph's presence

 drivers/gpu/drm/drm_of.c |  9 +++++++
 drivers/of/property.c    | 52 +++++++++++++++++++++++++++++++++-------
 include/linux/of_graph.h |  6 +++++
 3 files changed, 58 insertions(+), 9 deletions(-)

-- 
2.26.0