diff options
| author | Jason Gunthorpe <jgunthorpe@obsidianresearch.com> | 2015-11-25 14:05:32 -0700 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2015-12-20 15:23:46 +0200 |
| commit | 25112048cd59930e23775cafb88e18cfb484892c (patch) | |
| tree | 12847b70d58372af1d44c69cc83d9821cd773e91 /drivers/char/tpm/tpm-interface.c | |
| parent | 036bb38ffb3e4c92361108f324364b0341cd9e31 (diff) | |
tpm: rework tpm_get_timeouts()
IRQ probing needs to know that the TPM is working before trying to
probe, so move tpm_get_timeouts() to the top of the tpm_tis_init().
This has the advantage of also getting the correct timeouts loaded
before doing IRQ probing.
All the timeout handling code is moved to tpm_get_timeouts() in order to
remove duplicate code in tpm_tis and tpm_crb.
[jarkko.sakkinen@linux.intel.com: squashed two patches together and
improved the commit message.]
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Martin Wilck <Martin.Wilck@ts.fujitsu.com>
Tested-by: Scot Doyle <lkml14@scotdoyle.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Acked-by: Peter Huewe <peterhuewe@gmx.de>
Diffstat (limited to 'drivers/char/tpm/tpm-interface.c')
| -rw-r--r-- | drivers/char/tpm/tpm-interface.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index afdc83602e9f..e2fa89c88304 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -503,6 +503,21 @@ int tpm_get_timeouts(struct tpm_chip *chip) struct duration_t *duration_cap; ssize_t rc; + if (chip->flags & TPM_CHIP_FLAG_TPM2) { + /* Fixed timeouts for TPM2 */ + chip->vendor.timeout_a = msecs_to_jiffies(TPM2_TIMEOUT_A); + chip->vendor.timeout_b = msecs_to_jiffies(TPM2_TIMEOUT_B); + chip->vendor.timeout_c = msecs_to_jiffies(TPM2_TIMEOUT_C); + chip->vendor.timeout_d = msecs_to_jiffies(TPM2_TIMEOUT_D); + chip->vendor.duration[TPM_SHORT] = + msecs_to_jiffies(TPM2_DURATION_SHORT); + chip->vendor.duration[TPM_MEDIUM] = + msecs_to_jiffies(TPM2_DURATION_MEDIUM); + chip->vendor.duration[TPM_LONG] = + msecs_to_jiffies(TPM2_DURATION_LONG); + return 0; + } + tpm_cmd.header.in = tpm_getcap_header; tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP; tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4); |