[PATCH V3 1/2] tpm: add a helper to iterate on all tpm devices

[Philippe Reynes]

This add a helper for_each_tpm_device that run
through all the tpm (1.x and 2.0) devices.

Signed-off-by: Philippe Reynes <philippe.reynes at softathome.com>
---
 include/tpm-common.h | 3 +++
 1 file changed, 3 insertions(+)

Changelog:
v3:
- use the helper uclass_foreach_dev_probe
v2:
- new patch, add an helper for tpm device (idea from Miquel)

diff --git a/include/tpm-common.h b/include/tpm-common.h
index f9c2ca2..702cd6e 100644
--- a/include/tpm-common.h
+++ b/include/tpm-common.h
@@ -293,4 +293,7 @@ static inline cmd_tbl_t *get_tpm2_commands(unsigned int *size)
  */
 enum tpm_version tpm_get_version(struct udevice *dev);
 
+/* Iterate on all TPM devices */
+#define for_each_tpm_device(dev) uclass_foreach_dev_probe(UCLASS_TPM, (dev))
+
 #endif /* __TPM_COMMON_H */
-- 
2.7.4