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

[Ville Syrjälä]

On Sun, Dec 15, 2019 at 10:33:07PM +0100, Hans de Goede wrote:
> 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;

Do we want to set this to UNKNOWN when the VBT didn't supply the
information? IIRC the DSI code sets it to NORMAL in that case.

>  		drm_connector_init_panel_orientation_property(
>  			connector, fixed_mode->hdisplay, fixed_mode->vdisplay);
> +	}
>  
>  	return true;
>  
> -- 
> 2.23.0

-- 
Ville Syrjälä
Intel