I2c device probe not getting called

[parthasarathy]

Hi

I am trying to integrate mma8452 acclerometer to jetson nano through gpio header.

I have added the driver to kernel image(not as module).

I have added the dts entries as below:
i2c@7000c400 {
e2614_mma8452: mma8452@1d {
compatible = “fsl,mma8452”;
reg = <0x1d>;
status = “disabled”;
};
};

fragment-e2614-common@0 {
overrides@13 {
target = <&e2614_mma8452>;
overlay {
status = “okay”;
};
};
};

I am able to flash image and dtb properly, verified the same in /proc/device-tree/.

But the driver probe is not getting called.

Is there anything i am missing?
I added the device tree entry based on other driver entry, i am unsure if it is correct to put entries in e2614.
Please suggest me how i can debug further.

Additionally i am able to detect the i2c device slave address using below i2cdetect command

i2cdetect -r -y 1

so hardware connection is proper.

By the way i am using Jetpack 32.3.1. it’s bit old but right now i don’t have choice

Thanks
rps

[JerryChang]

@parthasarathy

compatible = “fsl,mma8452”;

there should be mma8452 driver, did you also modify the kernel config to enable this acclerometer ?

[parthasarathy]

Hi @JerryChang

Yes, i did that as well.

I have included config using menuconfig and built the kernel image. And verified it is getting built. I built as part of kernel image only not as modules.

Thanks,
rps

[parthasarathy]

Hi,

Got this issue solved, the status flag set as override in dts was not affecting the driver status.

Changed the status in main entry itself.

Thanks
rps