[Intel-gfx] [PATCH 3/3] drm/i915: Remove the hardware readout path for DSI panel orientation

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Now that we can actually grab the rotation data from the VBT,
maybe we can get rid of the hardware readout path? My VLV
FFRD is still happy.

Cc: Hans de Goede <hdegoede at redhat.com>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/vlv_dsi.c | 42 ----------------------------------
 1 file changed, 42 deletions(-)

diff --git a/drivers/gpu/drm/i915/vlv_dsi.c b/drivers/gpu/drm/i915/vlv_dsi.c
index a3119ec3189a..6f25571b5800 100644
--- a/drivers/gpu/drm/i915/vlv_dsi.c
+++ b/drivers/gpu/drm/i915/vlv_dsi.c
@@ -1668,54 +1668,12 @@ static const struct drm_connector_funcs intel_dsi_connector_funcs = {
 	.atomic_duplicate_state = intel_digital_connector_duplicate_state,
 };
 
-static enum drm_panel_orientation
-vlv_dsi_get_hw_panel_orientation(struct intel_connector *connector)
-{
-	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
-	struct intel_encoder *encoder = connector->encoder;
-	enum intel_display_power_domain power_domain;
-	enum drm_panel_orientation orientation;
-	struct intel_plane *plane;
-	struct intel_crtc *crtc;
-	enum pipe pipe;
-	u32 val;
-
-	if (!encoder->get_hw_state(encoder, &pipe))
-		return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
-
-	crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
-	plane = to_intel_plane(crtc->base.primary);
-
-	power_domain = POWER_DOMAIN_PIPE(pipe);
-	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
-		return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
-
-	val = I915_READ(DSPCNTR(plane->i9xx_plane));
-
-	if (!(val & DISPLAY_PLANE_ENABLE))
-		orientation = DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
-	else if (val & DISPPLANE_ROTATE_180)
-		orientation = DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP;
-	else
-		orientation = DRM_MODE_PANEL_ORIENTATION_NORMAL;
-
-	intel_display_power_put(dev_priv, power_domain);
-
-	return orientation;
-}
-
 static enum drm_panel_orientation
 intel_dsi_get_panel_orientation(struct intel_connector *connector)
 {
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	enum drm_panel_orientation orientation;
 
-	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
-		orientation = vlv_dsi_get_hw_panel_orientation(connector);
-		if (orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
-			return orientation;
-	}
-
 	orientation = dev_priv->vbt.dsi.orientation;
 	if (orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
 		return orientation;
-- 
2.18.1