Moving from JP5.1.3 to JP6.1 Caused GPIO Error

Autonomous Machines Jetson & Embedded Systems Jetson Orin NX
1

Hi,
We moved from JP5.1.3 to JP6.1 and we noticed some failures with GPIO.
We use custom carrier board and don’t use overlays (hardcoding the kernel dt)

  1. When executing
    cat /sys/kernel/debug/gpio
    We see only part of the GPIO pins

gpiochip0: GPIOs 480-511, parent: platform/c2f0000.gpio, tegra234-gpio-aon

  1. We noticed the following dmesg errors:

[ 0.080297] OF: /pps_gpio: could not get #gpio-cells for /bus@0/aconnect@2900000/ahub@2900800/ports/port@5e/endpoint
[ 3.783208] gpio-397 (camera-control-output-low): hogged as output/low
[ 3.783240] gpio-486 (camera-control-output-low): hogged as output/low
[ 3.783261] gpio-474 (camera-control-output-low): hogged as output/low
[ 3.783263] requesting hog GPIO camera-control-output-low (chip tegra234-gpio, offset 126) failed, -16
[ 3.783274] gpiochip_add_data_with_key: GPIOs 348…511 (tegra234-gpio) failed to register, -16
[ 3.783280] tegra186-gpio: probe of 2200000.gpio failed with error -16
[ 3.884232] i2c-mux-gpio bus@0:cam_i2cmux: 5 port mux on 3180000.i2c adapter

Our current dt:
orin.txt (331.8 KB)

How can we fix this issue?

3

Hi,
Please check this:

Jetson AGX Orin FAQ
Q: I cannot control GPIO in JP6.0 and JP6.1, but it works with JP5.x

4

Hi @DaneLLL ,
Thank you for your help and patience.
Problem solved

6

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