drm/i915/dp: Use BDB_GENERAL_FEATURES VBT block info for builtin panel-orientation
authorHans de Goede <hdegoede@redhat.com>
Fri, 28 Feb 2020 11:41:10 +0000 (12:41 +0100)
committerHans de Goede <hdegoede@redhat.com>
Mon, 2 Mar 2020 13:01:42 +0000 (14:01 +0100)
commit0dd5b13315fd57976f4cde050c1e763aba2ffdcf
tree00d286b6813bd021bdbdefd388bea6e44e89118b
parent1ca002adce955d9f0769e8830a62a50fb039d09d
drm/i915/dp: Use BDB_GENERAL_FEATURES VBT block info for builtin panel-orientation

Some devices with a builtin panel have the panel mounted upside down,
this is indicated by the rotate_180 bit in the BDB_GENERAL_FEATURES VBT
block.

We store this info in dev_priv->vbt.orientation, use this to set the
connector's orientation property so that fbcon and userspace will show
the image the right way up on devices with an upside-down mounted panel.

This fixes the image being upside-down on a Teclast X89 tablet.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200228114110.187792-3-hdegoede@redhat.com
drivers/gpu/drm/i915/display/intel_dp.c