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=-0.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 E7C2AC43387 for ; Fri, 18 Jan 2019 12:08:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B5EE72087E for ; Fri, 18 Jan 2019 12:08:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="htjKPRRp"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="RyJsqdoN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727524AbfARMIf (ORCPT ); Fri, 18 Jan 2019 07:08:35 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:38966 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727020AbfARMIf (ORCPT ); Fri, 18 Jan 2019 07:08:35 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 65E3760866; Fri, 18 Jan 2019 12:08:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1547813314; bh=AuMRxhZnW/nS9eRSCZAqfikgkQPIMNT9WIGr/bfc/9E=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=htjKPRRpfAc1Oad8zywhO2EaiL5tiW6O3ijvs6HP/Jh9AM2S4vpED0vP/52ZdjYe/ GDn57/tGpOITcmkaEEn/vl/9iM5spvAVkaGzbXQ9759k9vkCNB4JqNHVnR/cAZEnbk 3w0K3ehXwrH8ykX5Gq/X5B8NeBRmtG9eTHcvYQT8= Received: from [10.79.129.0] (blr-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: saiprakash.ranjan@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 5A60A604B4; Fri, 18 Jan 2019 12:08:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1547813313; bh=AuMRxhZnW/nS9eRSCZAqfikgkQPIMNT9WIGr/bfc/9E=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=RyJsqdoN9iVzcLxty4zNLVr/WfkiC4ROoAcFZRDF16dm/mWHS/GPDy933RZYSdk64 4e0YyUEtXXiNX8bgjX4c5CHyg+xjFxzVhsFm6ptgkOoMLIEbHs2vjHpvsgspX0btfg 7JV0zX9h1mc2B837GMkb9x3Yh+OyBd8jhhykxfYs= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 5A60A604B4 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=saiprakash.ranjan@codeaurora.org Subject: Re: [PATCHv2 2/4] arm64: dts: qcom: msm8996: Add Coresight support To: Suzuki K Poulose , robh+dt@kernel.org, mathieu.poirier@linaro.org, leo.yan@linaro.org, alexander.shishkin@linux.intel.com, andy.gross@linaro.org, david.brown@linaro.org, vivek.gautam@codeaurora.org, dianders@chromium.org, sboyd@kernel.org, bjorn.andersson@linaro.org, devicetree@vger.kernel.org, mark.rutland@arm.com Cc: rnayak@codeaurora.org, sibis@codeaurora.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org References: <552e408950525b1bac39d05b8b4f2ae1975397e0.1547798966.git.saiprakash.ranjan@codeaurora.org> <1311e78a-21f6-6470-7861-39b3499974ce@arm.com> <6543ad5c-bbcf-b3ec-332c-115e8e3d0825@codeaurora.org> <1b7d4c2f-98f7-4b80-4e32-6e0fe5c906ce@arm.com> From: Sai Prakash Ranjan Message-ID: <7a82a0c1-a449-f062-0cc3-944102472fb0@codeaurora.org> Date: Fri, 18 Jan 2019 17:38:25 +0530 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: <1b7d4c2f-98f7-4b80-4e32-6e0fe5c906ce@arm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Suzuki, On 1/18/2019 5:34 PM, Suzuki K Poulose wrote: > If you would like to use the scatter-gather mode, you must specify it > explicitly. We have had some other boards with broken scatter-gather > mode integration which causes mysterious issues when used. So we have > a white-list approach for enabling the scatter-gather mode in the driver. > > So, if you have tested to make sure that the mode works fine with a recent > kernel version (v4.19 onwards), you may want to add the property. > > Suzuki > Will add scatter-gather and post v3 soon for both SDM845 and MSM8996. Thanks, Sai -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation