ST33TPHF20SPI: tpm_tis_spi: probe of spi0.0 failed with error -110

[hutcruchi]

Hi,

I followed the instructions for installing the tpm_tis_spi driver for linux.

(https://www.st.com/resource/en/application_note/an5714-integrating-the-stsafetpm-trusted-platform-modules-with-linux-stmicroelectronics.pdf)

I built and load the kernel modules: tpm_tis_core and tpm_tis_spi.

from dmesg:

tpm_tis_spi: probe of spi0.0 failed with error -110

For some reason the TPM isn't responding to our spi communication.

How can I debug it?

Thanks

[Peter BENSCH · Accepted solution]

I have just come across your older question: the data of all ST33 devices is strictly confidential and will only be handed over if an NDA is signed. For this reason, nobody in the public community will be able to help you, so you should contact your local ST contact.

Hope that helps?

Regards
/Peter

[hutcruchi]

Thank you