On Tue, Feb 02, 2021 at 08:57:24PM +0100, Lukasz Majczak wrote:

There are missing calls to tpm_request_locality before the calls to
the tpm_get_timeouts() and tpm_tis_probe_irq_single() - both functions
internally send commands to the tpm. As the current
approach might work for tpm2, it fails for tpm1.x - in that case
call to tpm_get_timeouts() or tpm_tis_probe_irq_single()
without acquired locality fails and in turn causes tpm_tis_core_init()
to fail, it can be observed in the log with the following warning
trace:

Ignoring this version.

/Jarkko