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SubjectRe: [PATCH v5 0/6] Support DRM bridges on NVIDIA Tegra
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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?

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