Re: [PATCH v7 5/5] tpm_tis: Increase ST19NP18 TPM command duration to avoid chip lockup

2016-06-21 Thread Jarkko Sakkinen
On Mon, Jun 20, 2016 at 06:54:02PM -0700, Ed Swierk wrote: > The STMicro ST19NP18-TPM sometimes takes much longer to execute > commands than it reports in its capabilities. For example, command 186 > (TPM_FlushSpecific) has been observed to take 14560 msec to complete, > far longer than the 3000 ms

[PATCH v7 5/5] tpm_tis: Increase ST19NP18 TPM command duration to avoid chip lockup

2016-06-20 Thread Ed Swierk
The STMicro ST19NP18-TPM sometimes takes much longer to execute commands than it reports in its capabilities. For example, command 186 (TPM_FlushSpecific) has been observed to take 14560 msec to complete, far longer than the 3000 msec limit for "short" commands reported by the chip. The behavior ha