Tegra OP-TEE device tree structure

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
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Dear developers,

I am implementing an OP-TEE I2S driver for the Jetson AGX Xavier. I had a look at the tegra194-optee.dts device tree structure file and noticed there aren’t any entries for I2S. However the device tree structure used by the kernel-5.10 (kernel-5.10/arch/arm64/boot/dts/nvidia/tegra194.dtsi) has entries for I2S.

I will like to know if I am obliged to put an entry for the I2S device in the OP-TEE device tree too for the OP-TEE driver to work correctly, or the entry in the kernel device tree suffices.

Thanks in advance for your response.

4

Hi,

Please refer to this

https://optee.readthedocs.io/en/latest/architecture/device_tree.html

and also the source code in our public optee:

optee/optee_os/core/drivers/tegra/common/tegra_driver_se.c#31

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