On Thu, Jun 10, 2021 at 01:35:47PM +0200, Laurent Bigonville wrote:
> # dmesg |grep -i tpm
> 
> [   13.019986] tpm_tis 00:06: 1.2 TPM (device-id 0x6871, rev-id 1)
> [   15.016198] tpm tpm0: tpm_try_transmit: send(): error -62
> [   15.016208] tpm tpm0: A TPM error (-62) occurred attempting to determine
> the timeouts
> [   15.016239] tpm_tis: probe of 00:06 failed with error -62
> [   15.053255] tpm_inf_pnp 00:06: Found TPM with ID IFX0102

If possible, can you check what happens when you apply the attached patch.
I'm not proposing it as a bug fix but it just simplifies the flow a lot,
and might help to observe something.

/Jarkko