Jetson Orin: I2C 7 for Type C with i2cdetect don't find i2c device

[yunshang425]

Hi,
My board design that orin controls the output height of the SRC pin of PD FUSB308B through IIC7 (address 0X50). Turn on the load switch and FP2123 outputs a voltage of 5V/1A, and then supplies power to external devices through Type-C.

Add IIC 7 to the device tree，I can’t find dev addr with i2cdetect -r- y 6 .

My device tree like this:

I check the power is ok with the device fusb308. Is there a problem with the device tree I modified？

[ShaneCCC]

Could you confirm with others i2c bus?

[yunshang425]

I don’t understand what you mean？How do I check this issue？

[yunshang425]

Hi ShaneCCC,
Is the pin DP0_AUX reuse ？IF DP0_AUX default is display ， how do I change DP0_AUX default display function to I2C mode through the device tree?
Looking forward to your reply！

[ShaneCCC]

What’s the BSP version.

[yunshang425]

It’s L4T 34.1.1

[kayccc]

We can see timeout issues on I2C7 (i2c@31c0000). This could be due to improper pinmux settings. Please dump below pinmux registers for I2C7 to do the investigation:

PADCTL_EDP_DP_AUX_CH2_P_0 : 0x02440060
PADCTL_EDP_DP_AUX_CH2_N_0 : 0x02440068

[kayccc]

There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.
Thanks

@kayccc

Please dump below pinmux registers for I2C7 to do the investigation:

Any result can be shared? Thanks