Enabling the camera sensor of the On-Camera Mezzanine (AR1337 sensor)

Products Support DragonBoard410c
#1

Hello,
I have been searching for documentation on how to enable the AR1337 sensor for Debian on Dragonboard410C, but apart from seeing a few mentions that people have gotten it working
I haven’t found any info as to the process of doing so.

My assumption is that I will have to create the camera driver (not found in the kernel, and I haven’t found it anywhere else either), and enable it in the dtsi file.

Does anyone have further info/suggestions on getting this working that they’re willing to share? Anything is greatly appreciated.

On-Camera Mezzanine (AR1337): On Camera Mezzanine - 96Boards

Thanks

#2

The driver certainly exists, but is not upstream, I think you should contact MMSolutions (www.mm-sol.com) or arrow to get information about software components. I would also be interested about the way to enable it.

#3

So far MM-Solutions has not been responding, and the people at Arrow I talked to don’t seem to have any more information on the mezzanine.

I did find this though: manivannan.sadhasivam/96b-common.git - [no description]

However, using this driver results in the following error (I changed it to I2C address 0x3b here in the dtsi, but originally used 0x36):

error
error1125×523 40.7 KB

My assumption is that either the I2C bus or address used in the dtsi file is incorrect, but I’m new to Dragonboard so I’m not really sure.

I2Cdetect gives me this:

i2cdetect
i2cdetect1125×523 32.7 KB

Busses 0 and 1 have no devices on them, cannot check bus 4 (does not support detection commands), and there appears to be three devices on bus 3?

i2c-bus3
i2c-bus31125×523 40.3 KB

I tried changing the bus to 3 and the I2C address to each of those, in addition to the 0x36 address originally used in the commit. I also tried 0x36 on bus 4.

It is probably obvious that I’m a bit lost on how to go about this. Anything that might point me in the right direction for figuring this out would be greatly appreciated!

#4

Which release/kernel are you running?

The camera is probably (I neither have the board nor the schematics) behind the CCI I2C bus (i2c-4), but anyway, if the camera requests a power-on gpio, you’ll not be able to detect it, except if you manually setup the gpio.

@Mani, is the driver supposed to work? any plan to upstream that driver?

#5

I’m using the 4.14.96 kernel. I downloaded the kernel from that commit, and compiled that so that there wouldn’t be any difference.

Ok, I’ll try looking into that a bit more and see what I can find.