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OpenCloudOS-Kernel
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tpm: add tpm_auto_startup() into tpm-interface.c 

Add wrapper tpm_auto_startup() to tpm-interface.c
instead of open coded decision between TPM 1.x and TPM 2.x
in tpm-chip.c

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
This commit is contained in:
Tomas Winkler 2018-10-19 21:22:59 +03:00 committed by Jarkko Sakkinen
parent 9db7fe187c
commit b03c43702e
3 changed files with 19 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/char/tpm/tpm-chip.c
View File

@ -451,14 +451,9 @@ int tpm_chip_register(struct tpm_chip *chip)
{
int rc;
if (chip->ops->flags & TPM_OPS_AUTO_STARTUP) {
if (chip->flags & TPM_CHIP_FLAG_TPM2)
rc = tpm2_auto_startup(chip);
else
rc = tpm1_auto_startup(chip);
if (rc)
return rc;
}
rc = tpm_auto_startup(chip);
if (rc)
return rc;
tpm_sysfs_add_device(chip);

15
drivers/char/tpm/tpm-interface.c
View File

@ -544,6 +544,21 @@ int tpm_send(struct tpm_chip *chip, void *cmd, size_t buflen)
}
EXPORT_SYMBOL_GPL(tpm_send);
int tpm_auto_startup(struct tpm_chip *chip)
{
int rc;
if (!(chip->ops->flags & TPM_OPS_AUTO_STARTUP))
return 0;
if (chip->flags & TPM_CHIP_FLAG_TPM2)
rc = tpm2_auto_startup(chip);
else
rc = tpm1_auto_startup(chip);
return rc;
}
/*
* We are about to suspend. Save the TPM state
* so that it can be restored.

1
drivers/char/tpm/tpm.h
View File

@ -541,6 +541,7 @@ ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_space *space,
size_t min_rsp_body_length, unsigned int flags,
const char *desc);
int tpm_get_timeouts(struct tpm_chip *);
int tpm_auto_startup(struct tpm_chip *chip);
int tpm1_pm_suspend(struct tpm_chip *chip, int tpm_suspend_pcr);
int tpm1_auto_startup(struct tpm_chip *chip);