linux-imx

    u8 config, altbit, minoff, val, newval;

​

    mutex_lock(&data->update_lock);

    config = (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0];

    altbit = (data->reg[param->msb[1]] >> param->shift[1]) & param->mask[1];

    minoff = (data->reg[param->msb[2]] >> param->shift[2]) & param->mask[2];

    mutex_unlock(&data->update_lock);

​

    val = config | (altbit << 3);

​

    if (val == 3 || val >= 10)

        newval = 255;

    else if (val == 4)

        newval = 0;

    else if (val == 7)

        newval = 1;

    else if (minoff == 1)

        newval = 2;

    else