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:
v10:- Corrected doc-comment, unbroke the of_graph_get_next_endpoint() and improved commit's message in the "add of_graph_is_present()" patch. Thanks to Laurent Pinchart for spotting the problems!
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 | 23 +++++++++++++++++++++++ include/linux/of_graph.h | 6 ++++++ 3 files changed, 38 insertions(+)