hisi3516dv300 接入bt1120问题2

前端是FPGA产生BT1120视频流，接入到3516dv300。硬件没有问题。
hisi刚配置第一步就出错了，现象描述：
*SAMPLE_COMM_VI_StartVi start…
[SAMPLE_COMM_VI_SetMipiAttr]-1835mipi_set_cmos_dev_attr(608): : ============= MipiDev 0, SetMipiAttr enWDRMode: 0
invalid cmos devno(0)!
mipi_set_combo_dev_attr(676): mipi set cmos attr failed!
mipi_rx_ioctl(889): mipi set combo_dev attr failed!
[SAMPLE_COMM_VI_SetMipiAttr]-1841: MIPI_SET_DEV_ATTR failed
[SAMPLE_COMM_VI_StartMIPI]-1933: SAMPLE_COMM_VI_SetMipiAttr failed!
[SAMPLE_COMM_VI_StartVi]-3337: SAMPLE_COMM_VI_StartMIPI failed!
[SAMPLE_VENC_VI_Init]-360: SAMPLE_COMM_VI_StartVi failed with -1!
[SAMPLE_VENC_H265_H264]-556: Init VI err for 0xffffffff!
^CThe pthread schedule_do end**
配置如下
combo_dev_attr_t MIPI_BT1120_ATTR =
{

/ input mode /
.devno = 0,
.input_mode = INPUT_MODE_BT1120,
.data_rate = MIPI_DATA_RATE_X1,
.img_rect = {0, 0, 1920, 1080},
{
.mipi_attr =
{
DATA_TYPE_YUV422_8BIT,//?????
HI_MIPI_WDR_MODE_NONE,
{ -1, -1, -1, -1}//{0, 1, 2, 3,}
}
}
};