drm/i915: call intel_tile_height with correct parameter

In skylake update plane functions, intel_tile_height() is called with
bits_per_pixel instead of pixel_format. Correcting it.
Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
[danvet: Fixup alignment.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_display.c

@@ -3115,7 +3115,7 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
 
 	if (intel_rotation_90_or_270(rotation)) {
 		/* stride = Surface height in tiles */
-		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+		tile_height = intel_tile_height(dev, fb->pixel_format,
 						fb->modifier[0]);
 		stride = DIV_ROUND_UP(fb->height, tile_height);
 		x_offset = stride * tile_height - y - src_h;

drivers/gpu/drm/i915/intel_sprite.c

@@ -229,7 +229,7 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 
 	if (intel_rotation_90_or_270(rotation)) {
 		/* stride: Surface height in tiles */
-		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+		tile_height = intel_tile_height(dev, fb->pixel_format,
 						fb->modifier[0]);
 		stride = DIV_ROUND_UP(fb->height, tile_height);
 		plane_size = (src_w << 16) | src_h;