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From:   Hsin-Yi Wang <hsinyi@chromium.org>
To:     Chun-Kuang Hu <chunkuang.hu@kernel.org>
Cc:     Hans de Goede <hdegoede@redhat.com>,
        Thierry Reding <thierry.reding@gmail.com>,
        Sam Ravnborg <sam@ravnborg.org>,
        Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Maxime Ripard <mripard@kernel.org>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        dri-devel@lists.freedesktop.org,
        linux-mediatek@lists.infradead.org,
        Rob Clark <robdclark@chromium.org>,
        Stephen Boyd <swboyd@chromium.org>,
        Douglas Anderson <dianders@chromium.org>,
        Rob Herring <robh+dt@kernel.org>,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 0/8] Add a panel API to return panel orientation
Date:   Wed,  1 Jun 2022 16:18:15 +0800
Message-Id: <20220601081823.1038797-1-hsinyi@chromium.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

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_panel_get_orientation() for drm/kms
drivers. The drivers can use the API to get panel's orientation, so they
can call drm_connector_set_panel_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 drm_panel_get_orientation() to return panel
    orientation
  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_panel.c                    |  8 ++++++++
 drivers/gpu/drm/mediatek/mtk_dsi.c             | 14 ++++++++++++++
 drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c |  8 ++++++++
 drivers/gpu/drm/panel/panel-edp.c              |  8 ++++++++
 drivers/gpu/drm/panel/panel-elida-kd35t133.c   |  8 ++++++++
 drivers/gpu/drm/panel/panel-ilitek-ili9881c.c  |  8 ++++++++
 drivers/gpu/drm/panel/panel-lvds.c             |  8 ++++++++
 drivers/gpu/drm/panel/panel-simple.c           |  9 +++++++++
 include/drm/drm_panel.h                        | 10 ++++++++++
 9 files changed, 81 insertions(+)

-- 
2.36.1.255.ge46751e96f-goog