Difference audio device tree between L4T 32.7.4 and L4T 35.3.1

[jtlee]

Hello,

I tried to add audio codec driver referencing to “Audio codec es8316 driver” in Orin Nano, but I don’t know how to edit device tree.

In L4T 32.7.4, audio device tree is placed Linux_for_Tegra/source/public/hardware/nvidia/platform/t19x/jakku/kernel-dts/common/tegra194-audio-p3668.dtsi.
And in L4T 35.31, audio device tree is placed Linux_for_Tegra/source/public/hardware/nvidia/platform/t23x/p3768/kernel-dts/cvb/tegra234-p3767-common-audio.dtsi

When I reviewing two dtsi, they are changed some points so I don’t how can changing it.

Do you now migration point these dtsi?

Attached file is from above link.

Thank you.

tegra194-audio-p3668.dtsi (4.1 KB)

[DRAMESH]

Hi Lee,
Yes, there are changes in the device tree from L4T 32.7.4 to 35.3.1.

Please refer below doc to integrate ES8316 Codec in L4T 35.3.1 Audio Setup and Development — Jetson Linux Developer Guide documentation

For the reference code, use Jetson AGX Orin Sound Card registration:
Linux_for_Tegra/source/public/hardware/nvidia/platform/t23x/concord/kernel-dts/cvb/tegra234-p3737-audio.dtsi

Also, refer [40-pin GPIO expansion header] for the Audio Singal (I2S interface) on Carrier Board Interface (Audio Setup and Development — Jetson Linux Developer Guide documentation)