tpm: use struct tpm_chip for tpm_chip_find_get()

Device number (the character device index) is not a stable identifier
for a TPM chip. That is the reason why every call site passes
TPM_ANY_NUM to tpm_chip_find_get().

This commit changes the API in a way that instead a struct tpm_chip
instance is given and NULL means the default chip. In addition, this
commit refines the documentation to be up to date with the
implementation.

Suggested-by: Jason Gunthorpe <[email protected]> (@chip_num -> @chip part)
Signed-off-by: Jarkko Sakkinen <[email protected]>
Reviewed-by: Jason Gunthorpe <[email protected]>
Tested-by: PrasannaKumar Muralidharan <[email protected]>

0 files changed, 0 insertions, 0 deletions