diff options
| author | Jason Gunthorpe <jgunthorpe@obsidianresearch.com> | 2016-07-12 11:41:49 -0600 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2016-07-19 17:43:38 +0300 |
| commit | cae8b441fc20812d7260dc3b45e05ee98fcfff1b (patch) | |
| tree | 25c43fb7bd96f438d00cdf6b6ca233a4e4995257 /drivers/char/tpm/tpm.h | |
| parent | 2b88cd96eb85d2f07873e6050e531df45d8a0cc8 (diff) | |
tpm: Factor out common startup code
The TCG standard startup sequence (get timeouts, tpm startup, etc) for
TPM and TPM2 chips is being open coded in many drivers, move it into
the core code.
tpm_tis and tpm_crb are used as the basis for the core code
implementation and the easy drivers are converted. In the process
several small drivers bugs relating to error handling this flow
are fixed.
For now the flag TPM_OPS_AUTO_STARTUP is optional to allow a staged
driver roll out, but ultimately all drivers should use this flow and
the flag removed. Some drivers still do not implement the startup
sequence at all and will need to be tested with it enabled.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Andrew Zamansky <andrew.zamansky@nuvoton.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/char/tpm/tpm.h')
| -rw-r--r-- | drivers/char/tpm/tpm.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 8890df205635..3e32d5bd2dc6 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -484,6 +484,7 @@ ssize_t tpm_transmit_cmd(struct tpm_chip *chip, void *cmd, int len, const char *desc); extern int tpm_get_timeouts(struct tpm_chip *); extern void tpm_gen_interrupt(struct tpm_chip *); +int tpm1_auto_startup(struct tpm_chip *chip); extern int tpm_do_selftest(struct tpm_chip *); extern unsigned long tpm_calc_ordinal_duration(struct tpm_chip *, u32); extern int tpm_pm_suspend(struct device *); @@ -526,10 +527,9 @@ int tpm2_unseal_trusted(struct tpm_chip *chip, ssize_t tpm2_get_tpm_pt(struct tpm_chip *chip, u32 property_id, u32 *value, const char *desc); -extern int tpm2_startup(struct tpm_chip *chip, u16 startup_type); +int tpm2_auto_startup(struct tpm_chip *chip); extern void tpm2_shutdown(struct tpm_chip *chip, u16 shutdown_type); extern unsigned long tpm2_calc_ordinal_duration(struct tpm_chip *, u32); -extern int tpm2_do_selftest(struct tpm_chip *chip); extern int tpm2_gen_interrupt(struct tpm_chip *chip); extern int tpm2_probe(struct tpm_chip *chip); #endif |