How can find the sensor chip reset information at jetson TX1 start?

How can find the sensor chip reset pin information at jetson TX1 start?
I use jetson TX1 and R28.2.I define a sensor chip reset pin as below

reset-gpios = <&gpio CAM2_RST_L GPIO_ACTIVE_HIGH>;

this means that is CAM2_RST_L is ouput ,at first is ouput low,then always is output high,is RIGHT?
But I check the CAM2_RST_L is always is output low,
How can find the sensor chip reset pin information at jetson TX1 start?
Can I see the CAM2_RST_L pin information at the sys log?
Where can I see it?

Please see the update in ttps://devtalk.nvidia.com/default/topic/1032121/jetson-tx1/the-sensor-chip-does-not-reset-at-jetson-tx1-r28-2-/