configuration gpio to sfio

Dear nVidia,

i want to configuration gpio to sfio for mic.

i refer to https://devtalk.nvidia.com/default/topic/1049674/jetson-nano/audio-i2s-on-40-pin-connector, but can’t find solution.

please let me know, how do i modify some files.

hello ziho.yoo,

may I know which GPIO pins you would like to have modification.
thanks

hello jerryChang,

i want to modification below gpios to sfio for using i2s mic.
I2S0_DIN DAP4_DIN 38 J.05 I2S4B_SDATA_IN
I2S0_DOUT DAP4_DOUT 40 J.06 I2S4B_SDATA_OUT
I2S0_FS DAP4_FS 35 J.04 I2S4B_LRCK
I2S0_SCLK DAP4_SCLK 12 J.07 I2S4B_SCLK

And find solution that,

modify to tegra210-porg-super-module-e2614.dtsi

gpio@6000d000 {
e2614_audio_pins: e2614-rt5658-audio {

status = “disabled”;
status = “okay”;
};
};

Result,

nano@nano-desktop:~$ sudo grep “Name:|J:|BB:” /sys/kernel/debug/tegra_gpio
Name:Bank:Port CNF OE OUT IN INT_STA INT_ENB INT_LVL
J: 2:1 00 00 00 00 00 00 000000
BB: 6:3 00 00 00 00 00 00 000000

so I think I can now use the I2S mic, Right??

Hi ziho.yoo,

Is this still an issue? Have you start with I2S mic?
Please update the result then we can support you further.

Thanks

Dear kayccc,

I2S mic is working well.
Thanks