linux-kernel - [PATCH v11 0/4] Panel rotation patches

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200617231842.30671-1-digetx@gmail.com>
Date:   Thu, 18 Jun 2020 02:18:38 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Derek Basehore <dbasehore@...omium.org>,
        Sam Ravnborg <sam@...nborg.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Sean Paul <sean@...rly.run>, Daniel Vetter <daniel@...ll.ch>,
        Ville Syrjälä 
        <ville.syrjala@...ux.intel.com>,
        Emil Velikov <emil.l.velikov@...il.com>,
        Daniel Stone <daniel@...ishbar.org>
Cc:     dri-devel@...ts.freedesktop.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v11 0/4] Panel rotation patches

Hello!

This series adds support for display panel's DT rotation property. It's a
continuation of the work that was initially started by Derek Basehore for
the panel driver that is used by some Mediatek device [1]. I picked up the
Derek's patches and added my t-b and r-b tags to them, I also added
rotation support to the panel-lvds and panel-simple drivers.

We need the rotation support for the Nexus 7 tablet device which is pending
to become supported by upstream kernel, the device has display panel mounted
upside-down and it uses panel-lvds [2].

[1] https://lkml.org/lkml/2020/3/5/1119
[2] https://patchwork.ozlabs.org/project/linux-tegra/patch/20200607154327.18589-3-digetx@gmail.com/

Changelog:

v11: - This series is factored out from this patchset [3] because these
       patches do not have hard dependency on the Tegra DRM patches and
       it should be nicer to review and apply the properly grouped patches.

     - Initially [3] only touched the panel-lvds driver and Emil Velikov
       suggested that it will be better to support more panels in the review
       comments to [3]. So I included the Derek's patch for the BOE panel
       and added rotation support to the panel-simple driver. I tested that
       panel-lvds and panel-simple work properly with the rotated panel using
       the Opentegra Xorg driver [4] and Wayland Weston [5].

     - The panel-lvds driver now prints a error message if rotation property
       fails to be parsed.

[3] https://lore.kernel.org/lkml/20200614200121.14147-1-digetx@gmail.com/
[4] https://github.com/grate-driver/xf86-video-opentegra/commit/28eb20a3959bbe5bc3a3b67e55977093fd5114ca
[5] https://gitlab.freedesktop.org/wayland/weston/-/merge_requests/315

Derek Basehore (2):
  drm/panel: Add helper for reading DT rotation
  drm/panel: Read panel orientation for BOE TV101WUM-NL6

Dmitry Osipenko (2):
  drm/panel: lvds: Read panel orientation
  drm/panel-simple: Read panel orientation

 drivers/gpu/drm/drm_panel.c                   | 43 +++++++++++++++++++
 .../gpu/drm/panel/panel-boe-tv101wum-nl6.c    |  6 +++
 drivers/gpu/drm/panel/panel-lvds.c            | 10 +++++
 drivers/gpu/drm/panel/panel-simple.c          | 11 +++++
 include/drm/drm_panel.h                       |  9 ++++
 5 files changed, 79 insertions(+)

-- 
2.26.0