From: Laurent Bigonville <bigon@debian.org>
To: Jerry Snitselaar <jsnitsel@redhat.com>
Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
Jason Gunthorpe <jgg@ziepe.ca>,
Alexander.Steffen@infineon.com, linux-integrity@vger.kernel.org
Subject: Re: [tpmdd-devel] tpm device not showing up in /dev anymore
Date: Fri, 9 Feb 2018 11:53:55 +0100 [thread overview]
Message-ID: <bea3c5c2-4abe-27bc-3fe0-761457cca897@debian.org> (raw)
In-Reply-To: <20180103003355.oaie7tych5lmtxiq@cantor>
I don't remember if I replied to this, re-posting to be sure:
Le 03/01/18 a 01:33, Jerry Snitselaar a ecrit :
> Hi Laurent,
>
> Can you try the following debug patch (earlier idea of adding a sleep
> to allow
> tpm to complete state transition):
>
> --8<--
>
> diff --git a/drivers/char/tpm/tpm_tis_core.c
> b/drivers/char/tpm/tpm_tis_core.c
> index fdde971bc810..6a9325b02059 100644
> --- a/drivers/char/tpm/tpm_tis_core.c
> +++ b/drivers/char/tpm/tpm_tis_core.c
> @@ -80,6 +80,7 @@ static void release_locality(struct tpm_chip *chip,
> int l)
> struct tpm_tis_data *priv = dev_get_drvdata(&chip->dev);
>
> tpm_tis_write8(priv, TPM_ACCESS(l), TPM_ACCESS_ACTIVE_LOCALITY);
> + tpm_msleep(200);
> }
>
> static int request_locality(struct tpm_chip *chip, int l)
I tried the patch and this is working.
Would that be a viable solution?
Kind regards,
Laurent Bigonville
next prev parent reply other threads:[~2018-02-09 11:03 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-28 11:28 tpm device not showing up in /dev anymore Laurent Bigonville
[not found] ` <f9526f55-df96-64fc-a4d6-877ce04e7156-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
2017-08-29 16:00 ` Alexander.Steffen-d0qZbvYSIPpWk0Htik3J/w
[not found] ` <dcad0104c46d4d5f88e642862bdb42c2-nFblLGNE8XKJSz+rYg/bSJowlv4uC7bZ@public.gmane.org>
2017-08-29 16:35 ` Laurent Bigonville
[not found] ` <47c4300b-8701-79a6-1c58-3a5853f4c5e3-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
2017-08-29 17:39 ` Peter Huewe
2017-08-29 18:55 ` Laurent Bigonville
[not found] ` <595efb25-8d87-f39d-037f-9c9a98462339-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
2017-08-31 12:10 ` Alexander.Steffen-d0qZbvYSIPpWk0Htik3J/w
[not found] ` <857106e4bb864bb8a68b1381fffc8f50-nFblLGNE8XKJSz+rYg/bSJowlv4uC7bZ@public.gmane.org>
2017-08-31 16:40 ` Jerry Snitselaar
2017-09-01 12:10 ` Laurent Bigonville
[not found] ` <0d9be244-ace0-030d-6ff9-c4e94c63b7e9-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
2017-09-06 4:05 ` Jarkko Sakkinen
2017-10-14 8:13 ` [tpmdd-devel] " Jerry Snitselaar
2017-10-14 8:13 ` Jerry Snitselaar
2017-10-21 8:53 ` [tpmdd-devel] " Laurent Bigonville
2017-10-21 8:53 ` Laurent Bigonville
2017-10-23 13:23 ` [tpmdd-devel] " Jarkko Sakkinen
2017-10-23 13:23 ` Jarkko Sakkinen
2017-10-23 13:45 ` [tpmdd-devel] " Jerry Snitselaar
2017-10-23 13:45 ` Jerry Snitselaar
2017-10-23 13:48 ` [tpmdd-devel] " Laurent Bigonville
2017-10-23 13:48 ` Laurent Bigonville
2017-10-24 13:51 ` [tpmdd-devel] " Jarkko Sakkinen
2017-10-24 13:51 ` Jarkko Sakkinen
2017-10-24 14:57 ` [tpmdd-devel] " Jerry Snitselaar
2017-10-24 14:57 ` Jerry Snitselaar
2017-10-24 16:07 ` [tpmdd-devel] " Jarkko Sakkinen
2017-10-24 16:07 ` Jarkko Sakkinen
2017-11-09 0:04 ` [tpmdd-devel] " Laurent Bigonville
2017-11-09 0:04 ` Laurent Bigonville
2017-11-09 19:58 ` [tpmdd-devel] " Laurent Bigonville
2017-11-09 19:58 ` Laurent Bigonville
2017-11-09 23:50 ` [tpmdd-devel] " Jerry Snitselaar
2017-11-09 23:50 ` Jerry Snitselaar
2017-11-10 2:19 ` [tpmdd-devel] " Jerry Snitselaar
2017-11-10 2:19 ` Jerry Snitselaar
2017-11-10 0:28 ` [tpmdd-devel] " Jerry Snitselaar
2017-11-10 7:07 ` Jerry Snitselaar
2017-11-10 8:21 ` Laurent Bigonville
2017-11-10 20:53 ` Jerry Snitselaar
2017-11-11 15:45 ` Jason Gunthorpe
2017-11-11 19:12 ` Jerry Snitselaar
2017-11-11 19:46 ` Jason Gunthorpe
2017-11-11 20:31 ` Jerry Snitselaar
2017-11-14 0:26 ` Laurent Bigonville
2017-11-14 2:45 ` Jason Gunthorpe
2017-11-14 14:59 ` Jarkko Sakkinen
2017-11-14 15:17 ` James Bottomley
2017-11-17 13:16 ` Jarkko Sakkinen
2018-01-02 23:54 ` Laurent Bigonville
2018-01-03 0:33 ` Jerry Snitselaar
2018-01-05 19:01 ` Laurent Bigonville
2018-02-09 10:53 ` Laurent Bigonville [this message]
2018-02-14 11:44 ` Jarkko Sakkinen
2018-03-09 17:24 ` Laurent Bigonville
2018-03-15 16:24 ` Jarkko Sakkinen
2018-05-03 11:38 ` Laurent Bigonville
2018-05-03 17:43 ` Jerry Snitselaar
2018-05-04 8:20 ` Jarkko Sakkinen
2018-05-04 8:18 ` Jarkko Sakkinen
2018-05-04 14:22 ` Jerry Snitselaar
2017-11-14 14:55 ` Jarkko Sakkinen
2017-11-14 14:43 ` Jarkko Sakkinen
2017-10-25 8:04 ` Laurent Bigonville
2017-10-25 8:04 ` Laurent Bigonville
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