This patch series is for making the GPD Win Max display usable with
Linux.
The GPD Win Max is a small laptop, and its eDP panel does not send an
EDID over DPCD; the EDID is instead available in the intel opregion, in
mailbox #5 [1]
The second patch is just to fix the orientation of the panel.
Changes since v1:
- rebased on drm-tip
- squashed patch 1 & 2
- picked up Reviewed-by from Hans de Goede (thanks for the review)
Changes since v2:
- rebased on drm-tip
- updated commit message
When v2 was initially sent [3] Ville Syrjälä suggested that it might be
a good idea to use the ACPI _DDC method instead to get the EDID, to
cover a wider range of hardware. Unfortunately, it doesn't seem
available on GPD Win Max, so I think this work should be done
independently, and this patch series considered separately.
Change since v3:
- edits following Jani's review:
- The EDID from the opregion is now only used as a fallback: if we
cannot get any edid from the edp connector, then we attempt to get
it from the opregion. This works for the GPD Win Max.
- all other remarks should have been taken into account
- rebased on drm-tip
- added Co-developed-by
- reordered signed-off-by and reviewed-by in second patch (thanks
Maarten!)
Changes since v4:
- checkpatch.pl fixes
- rebased on drm-tip
- Note: patch #1 is incomplete, still missing Jani's signed-off-by
[1]: https://gitlab.freedesktop.org/drm/intel/-/issues/3454
[2]: https://patchwork.kernel.org/project/intel-gfx/patch/20200828061941.17051-1-jani.nikula@xxxxxxxxx/
[3]: https://patchwork.kernel.org/project/intel-gfx/patch/20210531204642.4907-2-anisse@xxxxxxxxx/
Anisse Astier (2):
drm/i915/opregion: add support for mailbox #5 EDID
drm: Add orientation quirk for GPD Win Max
.../gpu/drm/drm_panel_orientation_quirks.c | 6 ++
drivers/gpu/drm/i915/display/intel_dp.c | 7 +++
drivers/gpu/drm/i915/display/intel_opregion.c | 55 ++++++++++++++++++-
drivers/gpu/drm/i915/display/intel_opregion.h | 10 ++++
4 files changed, 77 insertions(+), 1 deletion(-)
--
2.31.1
