IMX274_MAX_ANALOG_GAIN
if (gain > IMX274_MAX_DIGITAL_GAIN * IMX274_MAX_ANALOG_GAIN)
gain = IMX274_MAX_DIGITAL_GAIN * IMX274_MAX_ANALOG_GAIN;
if (gain <= IMX274_MAX_ANALOG_GAIN)
else if (gain <= IMX274_MAX_ANALOG_GAIN * 2)
else if (gain <= IMX274_MAX_ANALOG_GAIN * 4)
IMX274_MAX_DIGITAL_GAIN * IMX274_MAX_ANALOG_GAIN, 1,