[Intel-gfx] [PATCH 2/2] drm/i915/dp: Use BDB_GENERAL_FEATURES VBT block info for builtin panel-orientation

[Hans de Goede]

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 at redhat.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index b05b2191b919..d31c04a22976 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -7350,9 +7350,12 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
 	intel_connector->panel.backlight.power = intel_edp_backlight_power;
 	intel_panel_setup_backlight(connector, pipe);
 
-	if (fixed_mode)
+	if (fixed_mode) {
+		connector->display_info.panel_orientation =
+			dev_priv->vbt.orientation;
 		drm_connector_init_panel_orientation_property(
 			connector, fixed_mode->hdisplay, fixed_mode->vdisplay);
+	}
 
 	return true;
 
-- 
2.23.0