The tpm random number generation functionality will be moved to the
driver model. With that, the tpm_get_random function will call the
common driver model api instead of separate functions for tpmv1 and
tpmv2. Return an int instead of a u32 to comply with the return value
of the driver model function.
Signed-off-by: Sughosh Ganu <sughosh.g...@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.g...@gmx.de>
Reviewed-by: Ilias Apalodimas <ilias.apalodi...@linaro.org>
Reviewed-by: Simon Glass <s...@chromium.org>
---
Changes since V4: None
include/tpm_api.h | 4 ++--
lib/tpm_api.c | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/tpm_api.h b/include/tpm_api.h
index 11aa14eb79..249a966942 100644
--- a/include/tpm_api.h
+++ b/include/tpm_api.h
@@ -274,9 +274,9 @@ u32 tpm_find_key_sha1(struct udevice *dev, const u8
auth[20],
* @param dev TPM device
* @param data output buffer for the random bytes
* @param count size of output buffer
- * Return: return code of the operation
+ * Return: 0 if OK, -ve on error
*/
-u32 tpm_get_random(struct udevice *dev, void *data, u32 count);
+int tpm_get_random(struct udevice *dev, void *data, u32 count);
/**
* tpm_finalise_physical_presence() - Finalise physical presence
diff --git a/lib/tpm_api.c b/lib/tpm_api.c
index 4ac4612c81..7d26ea2c3a 100644
--- a/lib/tpm_api.c
+++ b/lib/tpm_api.c
@@ -264,7 +264,7 @@ u32 tpm_get_permissions(struct udevice *dev, u32 index, u32
*perm)
return -ENOSYS;
}
-u32 tpm_get_random(struct udevice *dev, void *data, u32 count)
+int tpm_get_random(struct udevice *dev, void *data, u32 count)
{
if (tpm_is_v1(dev))
return tpm1_get_random(dev, data, count);
--
2.25.1
