18.04.2020 20:06, Dmitry Osipenko пишет: > Hello, > > This series adds initial support for the DRM bridges to NVIDIA Tegra DRM > driver. This is required by newer device-trees where we model the LVDS > encoder bridge properly. > > Changelog: > > v5: - Added new patches that make drm_of_find_panel_or_bridge() more usable > if graph isn't defined in a device-tree: > > of_graph: add of_graph_get_local_port() > drm/of: Make drm_of_find_panel_or_bridge() to check graph's presence > > - Updated "Support DRM bridges" patch to use drm_of_find_panel_or_bridge() > directly and added WARN_ON(output->panel || output->bridge) sanity-check. > > - Added new "Wrap directly-connected panel into DRM bridge" patch, as > was suggested by Laurent Pinchart. > > v4: - Following review comments that were made by Laurent Pinchart to the v3, > we now create and use the "bridge connector". > > v3: - Following recommendation from Sam Ravnborg, the new bridge attachment > model is now being used, i.e. we ask bridge to *not* create a connector > using the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag. > > - The bridge is now created only for the RGB (LVDS) output, and only > when necessary. For now we don't need bridges for HDMI or DSI outputs. > > - I noticed that we're leaking OF node in the panel's error code path, > this is fixed now by the new patch "Don't leak OF node on error". > > v2: - Added the new "rgb: Don't register connector if bridge is used" > patch, which hides the unused connector provided by the Tegra DRM > driver when bridge is used, since bridge provides its own connector > to us. > > - Please notice that the first "Support DRM bridges" patch was previously > sent out as a standalone v1 change. > > Dmitry Osipenko (6): > of_graph: add of_graph_get_local_port() > drm/of: Make drm_of_find_panel_or_bridge() to check graph's presence > drm/tegra: output: Don't leak OF node on error > drm/tegra: output: Support DRM bridges > drm/tegra: output: rgb: Support LVDS encoder bridge > drm/tegra: output: rgb: Wrap directly-connected panel into DRM bridge > > drivers/gpu/drm/drm_of.c | 13 +++++- > drivers/gpu/drm/tegra/drm.h | 2 + > drivers/gpu/drm/tegra/output.c | 21 +++++++-- > drivers/gpu/drm/tegra/rgb.c | 85 +++++++++++++++++++++------------- > drivers/of/property.c | 32 +++++++++---- > include/linux/of_graph.h | 7 +++ > 6 files changed, 114 insertions(+), 46 deletions(-) > Hello Thierry, Do you you have any objections to this series?
