[PATCH v5 0/8] Add a panel API to set orientation properly

[Hsin-Yi Wang]

Panels usually call drm_connector_set_panel_orientation(), which is
later than drm/kms driver calling drm_dev_register(). This leads to a
WARN()[1].

The orientation property is known earlier. For example, some panels
parse the property through device tree during probe.

The series add a panel API drm_connector_set_orientation_from_panel()
for drm/kms drivers. The drivers can call the API to set panel's
orientation before drm_dev_register().

Panel needs to implement .get_orientation callback to return the property.

[1] https://patchwork.kernel.org/project/linux-mediatek/patch/20220530081910.3947168-2-hsinyi@chromium.org/

v4 of this series is "Add a panel API to return panel orientation":
https://lore.kernel.org/lkml/20220606152431.1889185-1-hsinyi@chromium.org/

Hsin-Yi Wang (8):
  drm/panel: Add an API to allow drm to set orientation from panel
  drm/panel: boe-tv101wum-nl6: Implement .get_orientation callback
  drm/panel: panel-edp: Implement .get_orientation callback
  drm/panel: lvds: Implement .get_orientation callback
  drm/panel: panel-simple: Implement .get_orientation callback
  drm/panel: ili9881c: Implement .get_orientation callback
  drm/panel: elida-kd35t133: Implement .get_orientation callback
  drm/mediatek: Config orientation property if panel provides it

 drivers/gpu/drm/drm_connector.c               | 32 +++++++++++++++++++
 drivers/gpu/drm/mediatek/mtk_dsi.c            | 15 +++++++++
 .../gpu/drm/panel/panel-boe-tv101wum-nl6.c    | 12 +++++++
 drivers/gpu/drm/panel/panel-edp.c             | 13 +++++++-
 drivers/gpu/drm/panel/panel-elida-kd35t133.c  | 12 +++++++
 drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 12 +++++++
 drivers/gpu/drm/panel/panel-lvds.c            | 13 ++++++++
 drivers/gpu/drm/panel/panel-simple.c          | 14 +++++++-
 include/drm/drm_connector.h                   |  4 +++
 include/drm/drm_panel.h                       |  9 ++++++
 10 files changed, 134 insertions(+), 2 deletions(-)

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2.36.1.255.ge46751e96f-goog