sum_rot 865 drivers/gpu/drm/drm_client_modeset.c unsigned int sum_rot, sum_rest; sum_rot 869 drivers/gpu/drm/drm_client_modeset.c sum_rot = (panel_rot + cmdline_rot) % 4; sum_rot 875 drivers/gpu/drm/drm_client_modeset.c *rotation = (1 << sum_rot) | sum_rest;