tpm: ibmvtpm: Set TPM_OPS_AUTO_STARTUP flag on driver

JIRA: https://issues.redhat.com/browse/RHEL-72765

Upstream Status: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

Conflicts: Missing file and lines due to missing d2add27.

commit 02e9bda
Author: Stefan Berger <stefanb@linux.ibm.com>
Date:   Mon Oct 14 10:16:43 2024 -0400

    tpm: ibmvtpm: Set TPM_OPS_AUTO_STARTUP flag on driver

    Set the TPM_OPS_AUTO_STARTUP on the driver so that the ibmvtpm driver now
    uses tpm2_auto_startup and tpm1_auto_startup like many other drivers do.
    Remove tpm_get_timeouts, tpm2_get_cc_attrs_tbl, and tpm2_sessions_init
    calls from it since these will all be called in tpm2_auto_startup and
    tpm1_auto_startup.

    The exporting of the tpm2_session_init symbol was only necessary while the
    ibmvtpm driver was calling this function. Since this is not the case
    anymore, remove this symbol from being exported.

    What is new for the ibmvtpm driver is that now tpm2_do_selftest and
    tpm1_do_selftest will be called that send commands to the TPM to perform
    or continue its selftest. However, the firmware should already have sent
    these commands so that the TPM will not do much work at this time.

    Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
    Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
    Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>

Signed-off-by: Štěpán Horáček <shoracek@redhat.com>

Author: shoracek

drivers/char/tpm/tpm_ibmvtpm.c

@@ -450,6 +450,7 @@ static bool tpm_ibmvtpm_req_canceled(struct tpm_chip *chip, u8 status)
 }
 
 static const struct tpm_class_ops tpm_ibmvtpm = {
+	.flags = TPM_OPS_AUTO_STARTUP,
 	.recv = tpm_ibmvtpm_recv,
 	.send = tpm_ibmvtpm_send,
 	.cancel = tpm_ibmvtpm_cancel,
@@ -690,16 +691,6 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
 	if (!strcmp(id->compat, "IBM,vtpm20"))
 		chip->flags |= TPM_CHIP_FLAG_TPM2;
 
-	rc = tpm_get_timeouts(chip);
-	if (rc)
-		goto init_irq_cleanup;
-
-	if (chip->flags & TPM_CHIP_FLAG_TPM2) {
-		rc = tpm2_get_cc_attrs_tbl(chip);
-		if (rc)
-			goto init_irq_cleanup;
-	}
-
 	return tpm_chip_register(chip);
 init_irq_cleanup:
 	do {