Received: by 2002:ac0:a5b6:0:0:0:0:0 with SMTP id m51-v6csp5254996imm; Tue, 19 Jun 2018 07:33:16 -0700 (PDT) X-Google-Smtp-Source: ADUXVKJYOyulEA3QQFG6PJf48h5ZvdoMp4t5DBBdU19R3+BlC8HRPcWi+DNcIsDGCP67ZMXayFHA X-Received: by 2002:a65:5a07:: with SMTP id y7-v6mr14810095pgs.177.1529418796814; Tue, 19 Jun 2018 07:33:16 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1529418796; cv=none; d=google.com; s=arc-20160816; b=qPqDp0wWRavzDPisDsf/NYF/LgnSiFUg5KY0/GG8hSoCppsoxTpErGfCUxHlOB6p1D CUrTSKUoXoYtCREW9zB8gBkUjCZbX1gCngs7yiFCHzg4n7nO++7hnzQq8uT8RV57kQnw 0eMIN+14aKm4d84pdVOHCzAyE/2R6nZ81X2j/h6LmV6j+ctCVdOGd7/JSaTgS5VIX3RJ mUxU/ps0vSxBbAERrjxztkiWTX/q8iw4y52glMC/m5GwyZkWEdVDkhAi5gMk7Hg4A3Rw NOwB1lviRJU7wsCkvu6FqsID92AmFBhSfsIU9SJgQUWrCP7Xz261XBhfDgatRXmjOCQL vBlg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:arc-authentication-results; bh=+Kf4lkEkpZq9NgCyVjw2LAPknJ3Swof6ppEPDtV4UHI=; b=bGCczjaRV5J4qBX3+hSVpZF/6ENr1H1TiNhinETU4KyWmyvhNYyVPh7iV/pA09G58f 6D3Ay0Thpgr8E4JPay0+Iiwr2th1VG+ym/m+EjGQeQtMNv+ttWXaHxTbv5RKFsQctEph PH5GPO8Iu8TpxldDq/esW3x2wxUnT4iGRML/pP2VHizB02zQ++2tJ+8c0VbpJjVQ6JFC gwJp+MoHmjX/tBiBGi/j8Xwtc2Rwp4bVd11Q+p83IHYTPw8w8UmuA1c8tVD0j2V+n8l6 ufiBhwk5PtVW+oCfvlawK9WxNJvEDjzGJYE5RXs0uTqYfr+EExpblM8kkALP0TNDXY6d KXCQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id s24-v6si14213598pgv.494.2018.06.19.07.33.02; Tue, 19 Jun 2018 07:33:16 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757202AbeFSOa5 (ORCPT + 99 others); Tue, 19 Jun 2018 10:30:57 -0400 Received: from orcrist.hmeau.com ([104.223.48.154]:34872 "EHLO deadmen.hmeau.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756675AbeFSOaz (ORCPT ); Tue, 19 Jun 2018 10:30:55 -0400 Received: from gondobar.mordor.me.apana.org.au ([192.168.128.4] helo=gondobar) by deadmen.hmeau.com with esmtps (Exim 4.89 #2 (Debian)) id 1fVHeV-0005p1-Ek; Tue, 19 Jun 2018 22:30:35 +0800 Received: from herbert by gondobar with local (Exim 4.89) (envelope-from ) id 1fVHeS-0007GH-9Q; Tue, 19 Jun 2018 22:30:32 +0800 Date: Tue, 19 Jun 2018 22:30:32 +0800 From: Herbert Xu To: Vinod Koul Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, Matt Mackall , Arnd Bergmann , Greg Kroah-Hartman , linux-arm-msm@vger.kernel.org, Stephen Boyd , Vinod Koul Subject: Re: [PATCH v2 2/2] hwrng: msm - Add support for prng v2 Message-ID: <20180619143032.4qov5jrbhbsbp6dv@gondor.apana.org.au> References: <20180619095430.26358-1-vkoul@kernel.org> <20180619095430.26358-3-vkoul@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180619095430.26358-3-vkoul@kernel.org> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 19, 2018 at 03:24:30PM +0530, Vinod Koul wrote: > Qcom 8996 and later chips support prng v2 which requires to > implement only .read callback for hwrng. > > This version of chip has multiple Execution Environments (EE) and > secure world is typically responsible for configuring the prng. > > Add driver data for qcom,prng as 0 and qcom,prng-v2 as 1 and use > that to skip initialization and cleanup routines. > > Signed-off-by: Vinod Koul Is this a pseudo RNG? Cheers, -- Email: Herbert Xu Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt