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[2620:137:e000::1:18]) by mx.google.com with ESMTPS id n1-20020a170902d2c100b00153b2d16497si3370987plc.159.2022.05.02.18.25.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 May 2022 18:25:20 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; dkim=pass header.i=@quicinc.com header.s=qcdkim header.b=Z1OKyISF; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=quicinc.com Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id C50FF69CFB; Mon, 2 May 2022 18:04:16 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233828AbiEBXEv (ORCPT + 99 others); Mon, 2 May 2022 19:04:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54760 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232743AbiEBXEr (ORCPT ); Mon, 2 May 2022 19:04:47 -0400 Received: from alexa-out-sd-02.qualcomm.com (alexa-out-sd-02.qualcomm.com [199.106.114.39]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2BFCFFD11; Mon, 2 May 2022 16:01:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1651532477; x=1683068477; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=rbE6sU7GPVqQxj9BkFwHlP98+kDpzgDLB9cnLW3GKnU=; b=Z1OKyISFRS/sLc84oC1qmDP0/ccTESxIwb2fKhIK1L5On47k5R1KCMcn r4fWTWD4LrF2nWabNZUPDE6K0Z0QiY5JPliWi66MaubOVfDKAHP9SreFS I8G3y70xH+y/fXxqaOETATfqZa3gbpSrKSyTwMY1natfOPAKDXEpZazUh 0=; Received: from unknown (HELO ironmsg-SD-alpha.qualcomm.com) ([10.53.140.30]) by alexa-out-sd-02.qualcomm.com with ESMTP; 02 May 2022 16:01:16 -0700 X-QCInternal: smtphost Received: from unknown (HELO nasanex01a.na.qualcomm.com) ([10.52.223.231]) by ironmsg-SD-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 May 2022 16:01:16 -0700 Received: from [10.110.52.47] (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Mon, 2 May 2022 16:01:16 -0700 Message-ID: <53c3036e-9f19-5027-50a6-7964bc632fd8@quicinc.com> Date: Mon, 2 May 2022 16:01:15 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.6.1 Subject: Re: [PATCH V7 0/7] Add driver support for Data Capture and Compare Engine(DCC) for SM8150,SC7280,SC7180,SDM845 Content-Language: en-US To: Souradeep Chowdhury , Andy Gross , Bjorn Andersson , "Rob Herring" , Alex Elder CC: , , , , "Sai Prakash Ranjan" , Sibi Sankar , Rajendra Nayak , References: From: Trilok Soni In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nasanex01a.na.qualcomm.com (10.52.223.231) X-Spam-Status: No, score=-3.6 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,RDNS_NONE,SPF_HELO_NONE, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/2/2022 10:27 PM, Souradeep Chowdhury wrote: > DCC(Data Capture and Compare) is a DMA engine designed for debugging purposes. > In case of a system crash or manual software triggers by the user the DCC hardware > stores the value at the register addresses which can be used for debugging purposes. > The DCC driver provides the user with debugfs interface to configure the register > addresses. The options that the DCC hardware provides include reading from registers, > writing to registers, first reading and then writing to registers and looping > through the values of the same register. > Bjorn, can you please take a look at this series, it is pending review from last two months now. ---Trilok Soni