From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C8686C433E0 for ; Tue, 9 Jun 2020 17:32:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 948D320691 for ; Tue, 9 Jun 2020 17:32:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591723927; bh=LTcBoamWhld/ra+UitAF/59CJxE0THLNOV5UPkWwDm4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=2UmLzGvch94GQCW44rLH3+LrzFdL0TtcyUsUhlMH1qyIQR2ng0rvOyaeeQfakw2Uf hixRzN1GNncYMYGGEWiJUITWCf50FgrYoZoX/RsLIxOLCbXbaPUKxhp+pwG+UH2hEx TTVPWmDOR4Rdw1fnNdgS4NHqo8AeuorYWYg2zb4s= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729680AbgFIRcH (ORCPT ); Tue, 9 Jun 2020 13:32:07 -0400 Received: from mail-il1-f173.google.com ([209.85.166.173]:36833 "EHLO mail-il1-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726848AbgFIRcG (ORCPT ); Tue, 9 Jun 2020 13:32:06 -0400 Received: by mail-il1-f173.google.com with SMTP id a13so21170498ilh.3; Tue, 09 Jun 2020 10:32:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=IGnSfBXB+3nfSv3N6F0fbjwPESQfDqrwP19nspwqC6U=; b=AZiZx/neoKQAPCV9u1imUvPrnpXeDNwR7wx41FcKM/DswJRQgU+3qnmh18pSIySo/1 IeZDvKdcZ2S38p9/PmPQ/oYGGiuK1bJnvIyVOWYFPGI5JGQj/FFkUG7IivOq312WcJ0t sp+nS/VmxQ6PAUVWxV8AI6zBMt6LG9aNgWFMXj0g1HZE7s5FMQ2721ifS+q5TGxSif9a c3GZqYWI66CzKJ7+vMZnteJjOJ/n+woVQaxxthqDBIPSvHAy88/BCSFVvEFMBG3htm07 vLv0VgestMRYsb01bvBx2Uj+JWywdyExmg9Qg8MwjGiRJc+9oc0pRZe8nyoSJNKIetSM cULg== X-Gm-Message-State: AOAM531Fx3dZjuohSRbSYUqtC3H/yc4t+mqagZFH8QQBJOBDPmDkqTaK 7/jsAt6rcTBGcGSdxT9B9A== X-Google-Smtp-Source: ABdhPJyVUj4y5yOWIEZhHu2FOPrV9CJO6MI8LLU5aR4WVyN9icWLtu67T0oniravBER69+CId1YnxA== X-Received: by 2002:a92:89cf:: with SMTP id w76mr20191903ilk.10.1591723925603; Tue, 09 Jun 2020 10:32:05 -0700 (PDT) Received: from xps15 ([64.188.179.251]) by smtp.gmail.com with ESMTPSA id l12sm640246ilj.8.2020.06.09.10.32.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Jun 2020 10:32:04 -0700 (PDT) Received: (nullmailer pid 1119483 invoked by uid 1000); Tue, 09 Jun 2020 17:32:04 -0000 Date: Tue, 9 Jun 2020 11:32:04 -0600 From: Rob Herring To: Neal Liu Cc: Matthias Brugger , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, wsd_upstream@mediatek.com Subject: Re: Add MediaTek MT6873 devapc driver Message-ID: <20200609173204.GB1107294@bogus> References: <1591698261-22639-1-git-send-email-neal.liu@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1591698261-22639-1-git-send-email-neal.liu@mediatek.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Tue, Jun 09, 2020 at 06:24:19PM +0800, Neal Liu wrote: > These patch series introduce a MediaTek MT6873 devapc driver. > > MT6873 bus frabric provides TrustZone security support and data > protection to prevent slaves from being accessed by unexpected > masters. > The security violations are logged and sent to the processor for > further analysis or countermeasures. > > Any occurrence of security violation would raise an interrupt, and > it will be handled by devapc-mt6873 driver. The violation > information is printed in order to find the murderer. There's also a proposed driver with similar functionality[1]. Come up with a common solution. Rob [1] https://lore.kernel.org/linux-arm-kernel/20200128153806.7780-1-benjamin.gaignard@st.com/