From cae8b441fc20812d7260dc3b45e05ee98fcfff1b Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Tue, 12 Jul 2016 11:41:49 -0600 Subject: 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 Tested-by: Andrew Zamansky Reviewed-by: Jarkko Sakkinen Signed-off-by: Jarkko Sakkinen --- drivers/char/tpm/st33zp24/st33zp24.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/char/tpm/st33zp24') diff --git a/drivers/char/tpm/st33zp24/st33zp24.c b/drivers/char/tpm/st33zp24/st33zp24.c index a7c99a284724..c2ee30451e41 100644 --- a/drivers/char/tpm/st33zp24/st33zp24.c +++ b/drivers/char/tpm/st33zp24/st33zp24.c @@ -505,6 +505,7 @@ static bool st33zp24_req_canceled(struct tpm_chip *chip, u8 status) } static const struct tpm_class_ops st33zp24_tpm = { + .flags = TPM_OPS_AUTO_STARTUP, .send = st33zp24_send, .recv = st33zp24_recv, .cancel = st33zp24_cancel, @@ -592,9 +593,6 @@ int st33zp24_probe(void *phy_id, const struct st33zp24_phy_ops *ops, tpm_gen_interrupt(chip); } - tpm_get_timeouts(chip); - tpm_do_selftest(chip); - return tpm_chip_register(chip); _tpm_clean_answer: dev_info(&chip->dev, "TPM initialization fail\n"); -- cgit