Video Decoder TVP5146 component video input standard not detected

I modified the video inputs to the DVEVM6446 to accept component video inputs. I'm getting the message "VIDIOC_QUERYSTD failed on /dev/video0  Video Input connected?" I'm running the encoded (debug) application by entering the command > ./encoded -v video.264 -s audio.g711 -l -xn -t 20     I modified main.c in order to expand the -x argument to accept component video input.

The ./drivers/media/video/davinci/ tvp5146.c code in LSP 1.30.1.41it checks for the Color subcarrier, (see code below) Vertical and Horizontal sync lock signals in the Status 1 Register (3Ah).  Do these lock signals apply for component video or are they only for composite and SVideo input signals? What lock signals should be checked for component video?

Mike

----------------------------------------------------------------code snippet-----------------------------------------

/*
 * ========  gettvp5146std ========
 */
 /* This function returns detected TVP5146 input standard */
static int gettvp5146std(tvp5146_mode * mode)
{
    int ret = 0;
    u8 output1;
    u8 std;
    u8 lock_status;

    dev_dbg(tvp5146_i2c_dev, "\nStarting of gettvp5146std...");
    ret |= i2c_read_reg(&tvp5146_i2c_client, 0x2, &std);
    std &= 0x7;
    if (std == TVP5146_MODE_AUTO) {
        ret |= i2c_read_reg(&tvp5146_i2c_client, 0x3F, &std);
    }
    std &= 0x7;
    ret |= i2c_read_reg(&tvp5146_i2c_client, 0x33, &output1);
    *mode = std | ((output1 & 0x80) >> 4);    /* square pixel status */
    ret |= i2c_read_reg(&tvp5146_i2c_client, 0x3A, &lock_status);
    if ((lock_status & 0xe) != 0xe) {
        /* not quite locked */
       ret = -EAGAIN;
    }
    dev_dbg(tvp5146_i2c_dev, "\nEnd of gettvp5146std...");
    return ret;
}