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MD3730 camera isp "irqstatus & IRQ0STATUS_PRV_DONE_IRQ" is still fail

Hi,

    我现在遇到了一个问题,我在调试camera mt9p031 raw data的一颗sensor,但是现在中断总是上不来,我打印了log,发现

if (irqstatus & IRQ0STATUS_PRV_DONE_IRQ) {                                          // is still fail
        if (isp->isp_prev.output & PREVIEW_OUTPUT_RESIZER)
           ispresizer_isr_frame_sync(&isp->isp_res);
         isppreview_isr(&isp->isp_prev);
     }

这里状态总是不对,我不知道,什么情况,请各位给帮忙看下,多谢了