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question about adding new video decoder into VPFE+CCDC

wenping yan
Prodigy 100 points

I am now adding a new video decoder(adv7441a) into VPFE capture.

data transporting stream:

adv7441a->ccdc->sram(dma)->codec->...

adv7441a output set as BT.656 8bit ,YUV 4:2:2,and CCDC if_params value is:

type = VPFE_BT656

hdpol = VPFE_PINPOL_POSITIVE

vdpol = VPFE_PINPOL_POSITIVE

adv7441a video output format :

pixel format = V4L2_PIX_FMT_UYVY

colorspace = V4L2_COLORSPACE_SMPTE170M

and adv7441a config to component in,BT.656 out (ypbpr 4:2:2,720p,60hz),i can sure the configuration of adv7441a is correct.

when all the configuration completed. I can detect data outputing from adv7441a's output pin with Oscilloscope。

and the output data freq is corrent.

but there is no data comming IRQ occur from ccdc,and no data copy from ccdc to sram when the vpfe wanting copy data.

so,anyone can help me with this??