linux-kernel - [PATCH v6 0/8] Add a panel API to set orientation properly

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Date:   Wed,  8 Jun 2022 17:48:08 +0800
From:   Hsin-Yi Wang <hsinyi@...omium.org>
To:     Hans de Goede <hdegoede@...hat.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Douglas Anderson <dianders@...omium.org>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org,
        Rob Clark <robdclark@...omium.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v6 0/8] Add a panel API to set orientation properly

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/

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: Config orientation property if panel provides it

 drivers/gpu/drm/bridge/panel.c                | 36 +++++++++++++++++++
 drivers/gpu/drm/drm_bridge_connector.c        |  8 ++++-
 drivers/gpu/drm/drm_connector.c               | 32 +++++++++++++++++
 .../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_bridge.h                      |  3 ++
 include/drm/drm_connector.h                   |  4 +++
 include/drm/drm_panel.h                       |  9 +++++
 12 files changed, 165 insertions(+), 3 deletions(-)

-- 
2.36.1.255.ge46751e96f-goog