diff options
Diffstat (limited to 'drivers/crypto/caam/ctrl.c')
| -rw-r--r-- | drivers/crypto/caam/ctrl.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c index 8908d04..111ac1f 100644 --- a/drivers/crypto/caam/ctrl.c +++ b/drivers/crypto/caam/ctrl.c @@ -544,6 +544,9 @@ static int caam_probe(struct platform_device *pdev) * the TRNG parameters. */ if (!(ctrlpriv->rng4_sh_init || inst_handles)) { + dev_info(dev, + "Entropy delay = %u\n", + ent_delay); kick_trng(pdev, ent_delay); ent_delay += 400; } @@ -556,6 +559,12 @@ static int caam_probe(struct platform_device *pdev) */ ret = instantiate_rng(dev, inst_handles, gen_sk); + if (ret == -EAGAIN) + /* + * if here, the loop will rerun, + * so don't hog the CPU + */ + cpu_relax(); } while ((ret == -EAGAIN) && (ent_delay < RTSDCTL_ENT_DLY_MAX)); if (ret) { dev_err(dev, "failed to instantiate RNG"); |
