LM_BLEND0_OP
DPU_REG_WRITE(c, LM_BLEND0_OP + stage_off, blend_op);
DPU_REG_WRITE(c, LM_BLEND0_OP + stage_off, blend_op);
DPU_REG_WRITE(c, LM_BLEND0_OP + stage_off, blend_op);
op_mode = DPU_REG_READ(c, LM_BLEND0_OP + stage_off);
DPU_REG_WRITE(c, LM_BLEND0_OP + stage_off, op_mode);