[PATCH v3 2/6] crypto/fsl: export caam_get_era()

[Michael Walle]

We need the era in other modules, too. For example, to get the RNG
version.

Signed-off-by: Michael Walle <michael at walle.cc>
Reviewed-by: Horia Geantă <horia.geanta at nxp.com>
---
 drivers/crypto/fsl/sec.c | 10 +++++++++-
 include/fsl_sec.h        |  2 ++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/fsl/sec.c b/drivers/crypto/fsl/sec.c
index a2c0bfaf44..f0a4a63d88 100644
--- a/drivers/crypto/fsl/sec.c
+++ b/drivers/crypto/fsl/sec.c
@@ -98,7 +98,15 @@ void fdt_fixup_crypto_node(void *blob, int sec_rev)
 		       fdt_strerror(err));
 }
 #elif CONFIG_SYS_FSL_SEC_COMPAT >= 4  /* SEC4 */
-static u8 caam_get_era(void)
+/**
+ * caam_get_era() - fetch the CAAM's era
+ *
+ * The SEC module povides an "Era" which can be used to differentiate
+ * between different revisions.
+ *
+ * Return: era of the SEC.
+ */
+u8 caam_get_era(void)
 {
 	static const struct {
 		u16 ip_id;
diff --git a/include/fsl_sec.h b/include/fsl_sec.h
index c0d2c7e866..2ebb75c9b2 100644
--- a/include/fsl_sec.h
+++ b/include/fsl_sec.h
@@ -316,6 +316,8 @@ int blob_dek(const u8 *src, u8 *dst, u8 len);
 int sec_init_idx(uint8_t);
 #endif
 int sec_init(void);
+
+u8 caam_get_era(void);
 #endif
 
 #endif /* __FSL_SEC_H */
-- 
2.20.1