From 0a60a0a65fa98f265c79f3928d8628aabcba8a92 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Fri, 23 Nov 2018 21:29:32 -0700 Subject: tpm: Remove use of build-time TPM versions There is only one place in the code which assumes at build-time that we are using either a v1 or a v2 TPM. Fix this up and add a new function to return the version of a TPM. Supported TPM versions (v1 and v2) can be enabled independently and it is possible to use both versions at once. This is useful for sandbox when running tests. Signed-off-by: Simon Glass --- include/tpm-common.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/tpm-common.h') diff --git a/include/tpm-common.h b/include/tpm-common.h index 3d88b44..91a1484 100644 --- a/include/tpm-common.h +++ b/include/tpm-common.h @@ -274,4 +274,15 @@ static inline cmd_tbl_t *get_tpm2_commands(unsigned int *size) } #endif +/** + * tpm_get_version() - Find the version of a TPM + * + * This checks the uclass data for a TPM device and returns the version number + * it supports. + * + * @dev: TPM device + * @return version number (TPM_V1 or TPMV2) + */ +enum tpm_version tpm_get_version(struct udevice *dev); + #endif /* __TPM_COMMON_H */ -- cgit v1.1