From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753318AbdGSHp0 (ORCPT ); Wed, 19 Jul 2017 03:45:26 -0400 Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:41761 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752190AbdGSHpZ (ORCPT ); Wed, 19 Jul 2017 03:45:25 -0400 From: Oleksij Rempel To: kernel@pengutronix.de, =?UTF-8?q?Horia=20Geant=C4=83?= , Dan Douglass , Herbert Xu , "David S. Miller" , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Oleksij Rempel Subject: [PATCH v1] crypto: caam - set hwrng quality level Date: Wed, 19 Jul 2017 09:44:58 +0200 Message-Id: <20170719074458.9247-1-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.11.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org According documentation, it is NIST certified TRNG. So, set high quality to let the HWRNG framework automatically use it. Signed-off-by: Oleksij Rempel --- drivers/crypto/caam/caamrng.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c index 41398da3edf4..684c0bc88dfd 100644 --- a/drivers/crypto/caam/caamrng.c +++ b/drivers/crypto/caam/caamrng.c @@ -292,10 +292,16 @@ static int caam_init_rng(struct caam_rng_ctx *ctx, struct device *jrdev) return 0; } +/* + * hwrng register struct + * The trng is suppost to have 100% entropy, and thus + * we register with a very high quality value. + */ static struct hwrng caam_rng = { .name = "rng-caam", .cleanup = caam_cleanup, .read = caam_read, + .quality = 999, }; static void __exit caam_rng_exit(void) -- 2.11.0