Hi3520D_v200 + IT6604E VI 检测不到信号，望大神们指点下

(1)先说一下环境
1、硬件：Hi3520DV200, IT6604E(由海思I2c配置)，
        [VIU0_DAT0~7]对接[QE28~35], [VIU1_DAT0~7]对接[QE16~23], [VIU1_CLK]对接[PCLK]
2、软件：Hi3520D_MPP_V1.0.5.0，应用mpp/sample/vio/sample_vio 1(代码未做改动)
(2)现象如下:
1、it6604e能检测到输入信号，plck测量对得上，QE引脚有数据波形，下面贴上打印信息

HDMIRX_SAMPLE_2.18
#### open /dev/gpioi2c success ####
Turn_HDMIRX(OFF)
Terminator_Off, reg07 = 0c
RX VState VSTATE_PwrOff -> VSTATE_Off
Terminator_Off, reg07 = 0c
InitHDMIRX(FALSE): reg07 = 0C, ucCurrentHDMIPort = 0
func:LoadCustomizeDefaultSetting,line:1369,output mode: 00:rgb 01:yuv422 10:yuv444 <==> 0x01
RDROM_Reset()
Terminator_Off, reg07 = 0c
RX VState VSTATE_Off -> VSTATE_SWReset
HPDOff_TickCount = 0, ucTickCount = 0
Turn_HDMIRX(ON)
Check_HDCP_RDROM()
Terminator_Off, reg07 = 0c
Terminator_On, reg07 = 00
RX VState VSTATE_SWReset -> VSTATE_PwrOff
RX VState VSTATE_PwrOff -> VSTATE_SyncWait
system state = FB
Interrupt 1 = 11
5V Power On interrupt
New AVI Info Frame Change interrupt
system state = FF= FB
Interrupt 1 = 04
SCDT On interrupt
RX VState VSTATE_SyncWait  -> VSTATE_ColorDetectReset
system state = FF
Interrupt 1 = 04
RX VState VSTATE_ColorDetectReset -> VSTATE_SyncChecking
switch VSTATE_SyncChecking, reg9A = 00
RX VState VSTATE_SyncChecking -> VSTATE_ModeDetecting
Video_Handler, VState = VSTATE_ModeDetecting.
Video_Handler(): reg9A = 00
RX VState VSTATE_ModeDetecting -> VSTATE_VideoOn
SetVideoInputFormatWithInfoFrame(): REG_RX_AVI_DB1 AE get uc 10 input RGB24 mode
SetColorimetryByInfoFrame: NewAVIInfoFrameF = TRUE F_MODE_ITU709
Output mode is YUV422
Input mode is RGB444
CSC = RGB2YUV ITU709  0-255

reg 89 <- 5F = 5F
reg 89 <- 1F = 1F
reg 20 <- A2 = A2
reg 20 <- 22 = 22
AState -> ASTATE_WaitForReady
AState -> ASTATE_AudioOn

========================================================================
HDMI mode
Mode - [email]1920x1080@29.70Hz[/email]@No def(24bits), PCLK = 73.53MHz,xCnt= 47.00
<2200x1125>,H:(88,44,148),V:(4,5,36), VSyncToDE = 41
========================================================================
reg12 = 14 reg65 = 03
HDCP OFF
========================================================================

2、cat /proc/umap/vi 打印信息如下：

# cat /proc/umap/vi

[VIU] Version: [Hi3520D_MPP_V1.0.5.0 ], Build Time: [Feb  6 2015, 20:33:44]

-----MODULE PARAM--------------------------------------------------------------
detect_err_frame drop_err_frame stop_int_level  max_cas_gap
               0              0              0        28000

-----VI DEV ATTR---------------------------------------------------------------
Dev   IntfM  WkM  ComMsk0  ComMsk1 ScanM AD0 AD1 AD2 AD3   Seq   DPath DType DRev
   0 BT1120S 1Mux ff000000   ff0000     P  -1  -1  -1  -1  UVUV  ByPass   YUV    Y

-----VI HIGH DEV ATTR---------------------------------------------------------------
Dev  InputM  WkM  ComMsk0  ComMsk1 ScanM AD0 AD1 AD2 AD3   Seq CombM CompM ClkM  Fix FldP   DPath DType DRev

-----VI PHYCHN ATTR------------------------------------------------------------
PhyChn CapX CapY  CapW  CapH  DstW  DstH CapSel Mirror Flip IntEn PixFom SrcRat DstRat
      0    0    0  1920  1080  1920  1080   both      N    N     Y  sp420     -1     -1

-----VI PHYCHN MINOR ATTR------------------------------------------------------------
PhyChn CapX CapY  CapW  CapH  DstW  DstH CapSel Mirror   Flip PixFom MixCap DwScal

-----VI PHYCHN STATUS 1----------------------------------------------------------
PhyChn  Dev      IntCnt  VbFail  LosInt  TopLos  BotLos BufCnt  IntT  SendT  Field  Stride
      0    0           0       0       0       0       0      0     0      0 (null)       0

-----VI PHYCHN STATUS 2---------------------------------------------------------
PhyChn MaxIntT IntGapT MaxGapT OverCnt LIntCnt  ThrCnt AutoDis CasAutD  TmgErr      ccErrN    IntRat
      0       0       0       0       0       0       0       0       0       0           0         0

-----VI CHN STATUS-------------------------------------------------------------
ViChn   bEnUsrP   FrmTime   FrmRate     SendCnt      SwLost    Rotate  422to420
     0         N         0         0           0           0      NONE         N

-----VI CHN CALL DSU STATUS 1-------------------------------------------------
ViChn   UsrBgnNOk   UsrCancel    UsrEndOk     UsrCbOk     CvrBgnNOk   CvrCancel    CvrEndOk     CvrCbOk

-----VI CHN CALL DSU STATUS 2-------------------------------------------------
ViChn   OsdBgnNOk   OsdCancel    OsdEndOk     OsdCbOk      ScaleNOk   SclCancel    SclEndOk     SclCbOk

-----VI CHN CALL DSU STATUS 3-------------------------------------------------
ViChn   RotateNOk   RotCancel    RotEndOk     RotCbOk        LDCNOk   LDCCancel    LDCEndOk     LDCCbOk


（3）it6604e有数据给到，vi却检测不到信号；
网上浏览了很多关于hi3520d的论坛，还是找不到问题不知道出现在哪里？
望大神们帮帮我分析下，小弟先感谢了~~~