linux-kernel - Re: Patch "tpm_tis: reserve chip for duration of tpm_tis_core_init" has been added to the 5.4-stable tree

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Date:   Fri, 3 Jan 2020 14:47:20 -0700
From:   Jerry Snitselaar <jsnitsel@...hat.com>
To:     Christian Bundy <christianbundy@...ction.io>
Cc:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Greg KH <gregkh@...uxfoundation.org>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Peter Huewe <peterhuewe@....de>,
        Stefan Berger <stefanb@...ux.vnet.ibm.com>,
        stable-commits@...r.kernel.org, linux-integrity@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Patch "tpm_tis: reserve chip for duration of tpm_tis_core_init"
 has been added to the 5.4-stable tree

On Tue Dec 31 19, Christian Bundy wrote:
>> Christian, were you having any issues with interrupts? You system was going
>> into this code as well.
>
>Unfortunately I'm now unable to test, sorry for the trouble. I replaced my BIOS
>with UEFI firmware and the problem has disappeared. Please let me know if there
>is anything else I can do to help.
>
>Christian
>

That is interesting. Is the tpm functioning, or did the firmware change disable it?
Is there any output from 'dmesg | grep -i tpm' or anything in /sys/class/tpm/ ?