tpm: Implement tpm_auto_start() for TPMv1.2
Add an implementation of this, moving the common call to tpm_init() up
into the common API implementation.
Add a test.
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/include/tpm-common.h b/include/tpm-common.h
index b2c5404..1ba8138 100644
--- a/include/tpm-common.h
+++ b/include/tpm-common.h
@@ -94,7 +94,7 @@
* close().
*
* @dev: Device to open
- * @return 0 ok OK, -ve on error
+ * @return 0 ok OK, -EBUSY if already opened, other -ve on other error
*/
int (*open)(struct udevice *dev);
diff --git a/include/tpm-v1.h b/include/tpm-v1.h
index 33d53fb..60b71e2 100644
--- a/include/tpm-v1.h
+++ b/include/tpm-v1.h
@@ -591,4 +591,15 @@
*/
u32 tpm1_resume(struct udevice *dev);
+/**
+ * tpm1_auto_start() - start up the TPM
+ *
+ * This does not do a self test.
+ *
+ * @dev TPM device
+ * Return: TPM2_RC_SUCCESS, on success, or when the TPM returns
+ * TPM_INVALID_POSTINIT; TPM_FAILEDSELFTEST, if the TPM is in failure state
+ */
+u32 tpm1_auto_start(struct udevice *dev);
+
#endif /* __TPM_V1_H */