drm/i915: Move chv rotation checks to plane->check()

Move the chv rotation vs. reflections checks to the plane->check() hook,
away from the (now) platform agnostic
intel_plane_atomic_check_with_state().
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180907152413.15761-13-ville.syrjala@linux.intel.com

drivers/gpu/drm/i915/intel_atomic_plane.c

@@ -113,7 +113,6 @@ int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_
 					struct intel_plane_state *intel_state)
 {
 	struct drm_plane *plane = intel_state->base.plane;
-	struct drm_i915_private *dev_priv = to_i915(plane->dev);
 	struct drm_plane_state *state = &intel_state->base;
 	struct intel_plane *intel_plane = to_intel_plane(plane);
 	int ret;
@@ -121,14 +120,6 @@ int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_
 	if (!intel_state->base.crtc && !old_plane_state->base.crtc)
 		return 0;
 
-	/* CHV ignores the mirror bit when the rotate bit is set :( */
-	if (IS_CHERRYVIEW(dev_priv) &&
-	    state->rotation & DRM_MODE_ROTATE_180 &&
-	    state->rotation & DRM_MODE_REFLECT_X) {
-		DRM_DEBUG_KMS("Cannot rotate and reflect at the same time\n");
-		return -EINVAL;
-	}
-
 	intel_state->base.visible = false;
 	ret = intel_plane->check_plane(crtc_state, intel_state);
 	if (ret)

drivers/gpu/drm/i915/intel_display.c

@@ -3323,6 +3323,10 @@ i9xx_plane_check(struct intel_crtc_state *crtc_state,
 {
 	int ret;
 
+	ret = chv_plane_check_rotation(plane_state);
+	if (ret)
+		return ret;
+
 	ret = drm_atomic_helper_check_plane_state(&plane_state->base,
 						  &crtc_state->base,
 						  DRM_PLANE_HELPER_NO_SCALING,

drivers/gpu/drm/i915/intel_drv.h

@@ -2139,6 +2139,7 @@ unsigned int skl_plane_max_stride(struct intel_plane *plane,
 int skl_plane_check(struct intel_crtc_state *crtc_state,
 		    struct intel_plane_state *plane_state);
 int intel_plane_check_src_coordinates(struct intel_plane_state *plane_state);
+int chv_plane_check_rotation(const struct intel_plane_state *plane_state);
 
 /* intel_tv.c */
 void intel_tv_init(struct drm_i915_private *dev_priv);

drivers/gpu/drm/i915/intel_sprite.c

@@ -1128,12 +1128,33 @@ g4x_sprite_check(struct intel_crtc_state *crtc_state,
 	return 0;
 }
 
+int chv_plane_check_rotation(const struct intel_plane_state *plane_state)
+{
+	struct intel_plane *plane = to_intel_plane(plane_state->base.plane);
+	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
+	unsigned int rotation = plane_state->base.rotation;
+
+	/* CHV ignores the mirror bit when the rotate bit is set :( */
+	if (IS_CHERRYVIEW(dev_priv) &&
+	    rotation & DRM_MODE_ROTATE_180 &&
+	    rotation & DRM_MODE_REFLECT_X) {
+		DRM_DEBUG_KMS("Cannot rotate and reflect at the same time\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int
 vlv_sprite_check(struct intel_crtc_state *crtc_state,
 		 struct intel_plane_state *plane_state)
 {
 	int ret;
 
+	ret = chv_plane_check_rotation(plane_state);
+	if (ret)
+		return ret;
+
 	ret = drm_atomic_helper_check_plane_state(&plane_state->base,
 						  &crtc_state->base,
 						  DRM_PLANE_HELPER_NO_SCALING,