ipu_di_init
ret = ipu_di_init(ipu, dev, 0, ipu_base + devtype->disp0_ofs,
ret = ipu_di_init(ipu, dev, 1, ipu_base + devtype->disp1_ofs,
int ipu_di_init(struct ipu_soc *ipu, struct device *dev, int id,