From patchwork Sat Sep 14 21:02:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11145787 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 937231800 for ; Sat, 14 Sep 2019 21:03:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 73C9F2084F for ; Sat, 14 Sep 2019 21:03:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728596AbfINVDM (ORCPT ); Sat, 14 Sep 2019 17:03:12 -0400 Received: from muru.com ([72.249.23.125]:32928 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726912AbfINVDL (ORCPT ); Sat, 14 Sep 2019 17:03:11 -0400 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 03F5B820B; Sat, 14 Sep 2019 21:03:41 +0000 (UTC) From: Tony Lindgren To: Matt Mackall , Herbert Xu , linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org Cc: linux-crypto@vger.kernel.org, Aaro Koskinen , Adam Ford , =?utf-8?q?Pali_Roh=C3=A1r?= , Sebastian Reichel , Tero Kristo , Rob Herring , devicetree@vger.kernel.org Subject: [PATCH 4/7] hwrng: omap3-rom - Initialize default quality to get data Date: Sat, 14 Sep 2019 14:02:57 -0700 Message-Id: <20190914210300.15836-5-tony@atomide.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190914210300.15836-1-tony@atomide.com> References: <20190914210300.15836-1-tony@atomide.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Similar to commit 62f95ae805fa ("hwrng: omap - Set default quality") we need to initialize the default quality for the RNG to be used. The symptoms of this problem is that doing hd /dev/random does not produce much data at all. Cc: Aaro Koskinen Cc: Adam Ford Cc: Pali Rohár Cc: Sebastian Reichel Cc: Tero Kristo Signed-off-by: Tony Lindgren --- drivers/char/hw_random/omap3-rom-rng.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/char/hw_random/omap3-rom-rng.c b/drivers/char/hw_random/omap3-rom-rng.c --- a/drivers/char/hw_random/omap3-rom-rng.c +++ b/drivers/char/hw_random/omap3-rom-rng.c @@ -88,6 +88,7 @@ static int omap3_rom_rng_read(struct hwrng *rng, void *data, size_t max, bool w) static struct hwrng omap3_rom_rng_ops = { .name = "omap3-rom", + .quality = 900, }; static int omap3_rom_rng_probe(struct platform_device *pdev)