SPI Communication problem (spidev)

[KevinFFF]

Hi elrezz_00,

@elrezz_00

for the spi loop test, using spidev driver

Have you referred to the steps shared in Jetson Nano SPI Bus Not Working - #10 by KevinFFF to perform SPI loopback test?
If so, please share the result of the following command on your board.

$ sudo cat /sys/kernel/debug/tegra_pinctrl_reg | grep -i spi
$ sudo cat /sys/kernel/debug/tegra_gpio