drm/i915: Drop unused position fields (v2)

The userspace-requested plane coordinates are now always available via
plane->state.base (and the i915-adjusted values are stored in
plane->state), so we no longer use the coordinate fields in intel_plane
and can drop them.

Also, note that the error case for pageflip calls update_plane() to
program the values from plane->state; it's simpler to just call
intel_plane_restore() which does the same thing.

v2: Replace manual update_plane() with intel_plane_restore() in pageflip
    error handler.

Reviewed-by(v1): Bob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index c7e7051..dca3f70 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -1277,15 +1277,6 @@
 	unsigned int crtc_w, crtc_h;
 	uint32_t src_x, src_y, src_w, src_h;
 
-	intel_plane->crtc_x = state->base.crtc_x;
-	intel_plane->crtc_y = state->base.crtc_y;
-	intel_plane->crtc_w = state->base.crtc_w;
-	intel_plane->crtc_h = state->base.crtc_h;
-	intel_plane->src_x = state->base.src_x;
-	intel_plane->src_y = state->base.src_y;
-	intel_plane->src_w = state->base.src_w;
-	intel_plane->src_h = state->base.src_h;
-
 	crtc = crtc ? crtc : plane->crtc;
 	intel_crtc = to_intel_crtc(crtc);
 
@@ -1400,16 +1391,14 @@
 
 int intel_plane_restore(struct drm_plane *plane)
 {
-	struct intel_plane *intel_plane = to_intel_plane(plane);
-
 	if (!plane->crtc || !plane->fb)
 		return 0;
 
 	return plane->funcs->update_plane(plane, plane->crtc, plane->fb,
-				  intel_plane->crtc_x, intel_plane->crtc_y,
-				  intel_plane->crtc_w, intel_plane->crtc_h,
-				  intel_plane->src_x, intel_plane->src_y,
-				  intel_plane->src_w, intel_plane->src_h);
+				  plane->state->crtc_x, plane->state->crtc_y,
+				  plane->state->crtc_w, plane->state->crtc_h,
+				  plane->state->src_x, plane->state->src_y,
+				  plane->state->src_w, plane->state->src_h);
 }
 
 static const struct drm_plane_funcs intel_sprite_plane_funcs = {