Maciej S. Szmigiero c15aff9ef9 tpm_tis: use default timeout value if chip reports it as zero ...

commit 1d70fe9d9c upstream.

Since commit 1107d065fd ("tpm_tis: Introduce intermediate layer for
TPM access") Atmel 3203 TPM on ThinkPad X61S (TPM firmware version 13.9)
no longer works.  The initialization proceeds fine until we get and
start using chip-reported timeouts - and the chip reports C and D
timeouts of zero.

It turns out that until commit 8e54caf407 ("tpm: Provide a generic
means to override the chip returned timeouts") we had actually let
default timeout values remain in this case, so let's bring back this
behavior to make chips like Atmel 3203 work again.

Use a common code that was introduced by that commit so a warning is
printed in this case and /sys/class/tpm/tpm*/timeouts correctly says the
timeouts aren't chip-original.

Fixes: 1107d065fd ("tpm_tis: Introduce intermediate layer for TPM access")
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-03-12 06:44:09 +01:00

..

st33zp24

tpm/st33zp24: Remove useless tpm_gen_interrupt

2016-09-15 16:04:21 +03:00

Kconfig

tpm_tis: Allow tpm_tis to be bound using DT

2016-11-28 01:31:31 +02:00

Makefile

tpm: redefine read_log() to handle ACPI/OF at runtime

2016-11-28 01:31:32 +02:00

tpm2-cmd.c

char: tpm: fix kerneldoc tpm2_unseal_trusted name typo

2016-11-28 01:31:31 +02:00

tpm_acpi.c

tpm: Fix handling of missing event log

2016-11-28 01:31:32 +02:00

tpm_atmel.c

tpm: Remove useless priv field in struct tpm_vendor_specific

2016-06-25 17:26:35 +03:00

tpm_atmel.h

tpm: Remove useless priv field in struct tpm_vendor_specific

2016-06-25 17:26:35 +03:00

tpm_crb.c

tmp/tpm_crb: implement runtime pm for tpm_crb

2016-11-28 01:31:30 +02:00

tpm_eventlog.c

tpm: adjust return value of tpm_read_log

2016-11-28 01:31:33 +02:00

tpm_eventlog.h

tpm: redefine read_log() to handle ACPI/OF at runtime

2016-11-28 01:31:32 +02:00

tpm_i2c_atmel.c

tpm: Factor out common startup code

2016-07-19 17:43:38 +03:00

tpm_i2c_infineon.c

tpm: Factor out common startup code

2016-07-19 17:43:38 +03:00

tpm_i2c_nuvoton.c

tpm: Add TPM 2.0 support to the Nuvoton i2c driver (NPCT6xx family)

2016-07-19 17:43:38 +03:00

tpm_ibmvtpm.c

tpm: fix for typo in tpm/tpm_ibmvtpm.c

2016-06-25 17:26:35 +03:00

tpm_ibmvtpm.h

tpm_ibmvtpm: properly handle interrupted packet receptions

2015-12-20 15:27:12 +02:00

tpm_infineon.c

tpm: Get rid of chip->pdev

2016-06-25 17:26:35 +03:00

tpm_nsc.c

tpm: Remove useless priv field in struct tpm_vendor_specific

2016-06-25 17:26:35 +03:00

tpm_of.c

tpm: Fix handling of missing event log

2016-11-28 01:31:32 +02:00

tpm_ppi.c

tpm: move the PPI attributes to character device directory.

2015-10-19 01:01:20 +02:00

tpm_tis_core.c

tpm_tis: use default timeout value if chip reports it as zero

2017-03-12 06:44:09 +01:00

tpm_tis_core.h

tpm_tis: use default timeout value if chip reports it as zero

2017-03-12 06:44:09 +01:00

tpm_tis_spi.c

tpm/tpm_tis_spi: Add support for spi phy

2016-06-25 17:28:57 +03:00

tpm_tis.c

tpm_tis: use default timeout value if chip reports it as zero

2017-03-12 06:44:09 +01:00

tpm_vtpm_proxy.c

tpm: vtpm_proxy: conditionally call tpm_chip_unregister

2016-11-28 01:31:33 +02:00

tpm-chip.c

Merge branch 'akpm' (patches from Andrew)

2016-12-14 17:25:18 -08:00

tpm-dev.c

tpm: fix a race condition in tpm2_unseal_trusted()

2016-09-15 16:04:21 +03:00

tpm-interface.c

tpm_tis: use default timeout value if chip reports it as zero

2017-03-12 06:44:09 +01:00

tpm-sysfs.c

tpm: drop tpm1_chip_register(/unregister)

2016-11-28 01:31:32 +02:00

tpm.h

tpm: have event log use the tpm_chip

2016-11-28 01:31:32 +02:00

xen-tpmfront.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

2016-12-14 13:57:44 -08:00