lkml.org 
[lkml]   [2020]   [Jun]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v11 0/4] Panel rotation patches
Date
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

\
 
 \ /
  Last update: 2020-06-18 01:20    [W:0.092 / U:0.112 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site