Received: by 10.223.148.5 with SMTP id 5csp5972186wrq; Wed, 17 Jan 2018 07:56:49 -0800 (PST) X-Google-Smtp-Source: ACJfBovMeFMicLvuAm/ggjCTxyhpSpxIcLsBIkSsqp6Z97l0t0sAgjWkJFy2jZkj/iu15CDH5dxx X-Received: by 10.98.89.198 with SMTP id k67mr4381566pfj.110.1516204608951; Wed, 17 Jan 2018 07:56:48 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1516204608; cv=none; d=google.com; s=arc-20160816; b=vzq6Fj6LHyy9U9bTZjTExlgv0AZ3rXCjxPSdjVfL5/LvqmhJmVbT1w5xGYh8JtwKsz b9pSbOZTpmOmYapTWp6PgtQIn68Fu+wqBBlPyHz0HkSBuqcyuBok1ctCjrKl52Z7HKBg MUkbUm5fFbgOvqF4zmeE3zoU+uxqc4zQVpDilDbKbS4+dEAaf8GL8/FOIfRuGBSkqGPR VXJw9/XdrLOzlafeWHXH2zMe2oPup76EQ3fpC4wARXCUpA2aqfK4+jNUPrTGS29bZunn MSs9k5b76eNuEsewyM46vrmDSN8vk2emX7JbqrOs7Yh5mt2pUaxxG2FkbINlw90PrnHO 1btA== 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=+qCMpY1AvCCeKxyLPIrkZ1caQ31o6ldkPKfwTSd9/ik=; b=IpPeJ3EJCLqYiOUvnsTMFgZReLNO8bdBnAnMcuemv/Ycb8SuyizKFj1y8zExms4YKw Ojyzo0nUMp3stOwASW/TNdJIaDPzRVWuGjJlfaBiPOVdUnRvtOvbcJh/ENj4sDu47lQx bjf449ZAUI1qoBIPkYCyqOu1ZfGx/OK4stusG81+rSyWZnU52dFC2QwzrMqLCWL3NyYa L+q4YFvOhLu17DSGFGDCimxhamEpnErrX8+/dLHkYYxw7g33+LLm1V9HsllnpHdhLSKx cJ0mVArpP5qgoDs/dUwKSgjadJpqAINO+Ncj68m+0at/DLSQtB2wZhk4ZqZ7y2yNehvM 1d9A== 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 bb5si4502358plb.554.2018.01.17.07.56.34; Wed, 17 Jan 2018 07:56:48 -0800 (PST) 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 S1753881AbeAQPzk (ORCPT + 99 others); Wed, 17 Jan 2018 10:55:40 -0500 Received: from mga01.intel.com ([192.55.52.88]:43068 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753710AbeAQPzh (ORCPT ); Wed, 17 Jan 2018 10:55:37 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Jan 2018 07:55:11 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,372,1511856000"; d="scan'208";a="196328334" Received: from vkoul-udesk7.iind.intel.com (HELO localhost) ([10.223.84.143]) by fmsmga005.fm.intel.com with ESMTP; 17 Jan 2018 07:55:08 -0800 Date: Wed, 17 Jan 2018 21:29:31 +0530 From: Vinod Koul To: Srinivas Kandagatla Cc: Andy Gross , dmaengine@vger.kernel.org, Rob Herring , Mark Rutland , David Brown , Dan Williams , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, yanhe@quicinc.com, ramkri@qti.qualcomm.com, sdharia@quicinc.com Subject: Re: [PATCH 0/4] dmaengine: qcom: bam_dma: fixes for remotely controlled bam Message-ID: <20180117155930.GO18649@localhost> References: <20180116190236.14558-1-srinivas.kandagatla@linaro.org> <20180117101835.GM18649@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 17, 2018 at 10:55:34AM +0000, Srinivas Kandagatla wrote: > > > On 17/01/18 10:18, Vinod Koul wrote: > >On Tue, Jan 16, 2018 at 07:02:32PM +0000, srinivas.kandagatla@linaro.org wrote: > >>From: Srinivas Kandagatla > >> > >>Hi Andy, > >> > >>I did hit few issues while trying out SLIMBus BAM on DB820c, this BAM instance > >>is remotely controlled and powered up after ADSP is booted using QMI commands. > > > >What do you mean by "remotely controlled" in this series? > > DMA controller is controlled by the remote processor, which is a DSP in this > case. > Linux side is in remote mode in this setup, this can setup transfer > descriptors and start/stop a transfer. But all the initialization/powerup > part will be done in the remote processor. Yeah that was my guess too. So in this case does linux see these controllers/channels, i would presume no... -- ~Vinod