CFG_SUB_PCKT_NUM  853 drivers/gpu/drm/rockchip/cdn-dp-reg.c 	val |= CFG_SUB_PCKT_NUM(sub_pckt_num);
CFG_SUB_PCKT_NUM  921 drivers/gpu/drm/rockchip/cdn-dp-reg.c 	val = MAX_NUM_CH(2) | AUDIO_TYPE_LPCM | CFG_SUB_PCKT_NUM(4);