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SubjectRe: [PATCH for-linus-v5.5-rc6 0/3] TPM changes for v5.5-rc6
On Sat Jan 04 20, Jarkko Sakkinen wrote:
>There has been a bunch of reports (one from kernel bugzilla linked)
>reporting that when this commit is applied it causes on some machines
>boot freezes.
>Unfortunately hardware where this commit causes a failure is not widely
>available (only one I'm aware is Lenovo T490), which means we cannot
>predict yet how long it will take to properly fix tpm_tis interrupt
>Thus, the least worst short term action is to revert the code to the
>state before this commit. In long term we need fix the tpm_tis probing
>code to work on machines that Stefan's code was supposed to fix.
>Cc: Jerry Snitselaar <>
>Cc: Dan Williams <>
>Jarkko Sakkinen (1):
> tpm: Revert "tpm_tis: reserve chip for duration of tpm_tis_core_init"
>Stefan Berger (2):
> tpm: Revert "tpm_tis_core: Set TPM_CHIP_FLAG_IRQ before probing for
> interrupts"
> tpm: Revert "tpm_tis_core: Turn on the TPM before probing IRQ's"
> drivers/char/tpm/tpm_tis_core.c | 34 +++++++++++++++------------------
> 1 file changed, 15 insertions(+), 19 deletions(-)

Reviewed-by: Jerry Snitselaar <>

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