Received: by 2002:ac0:a594:0:0:0:0:0 with SMTP id m20-v6csp4186179imm; Fri, 18 May 2018 00:22:44 -0700 (PDT) X-Google-Smtp-Source: AB8JxZqf9SmhYbD6kYYTRpKEQENBjtH2MikjshjbF9GiiI5AfiI0j3/MLRpNim+R0Yhf2Hr6HdMP X-Received: by 2002:a65:5183:: with SMTP id h3-v6mr6463693pgq.58.1526628164397; Fri, 18 May 2018 00:22:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1526628164; cv=none; d=google.com; s=arc-20160816; b=WtJwecT2vW+5j+AgB+TiHmoMw1svnf5kEQFvqcQZXByc0NoNZgmhIIij/PxILGBhu8 5EmvAHa/uO6DT2FBH64mLkupUIFZei6yMHQIcPw8PxqdYAJjFEtrULF93CnkOb4iSayL ZIR2cPTsZhAAeg2vcyZKDct0mxVqn60+GqJs/vkYhybelsHADsH9xvWeHnHTIhQQIg9e VM0Cxshr8hweHkMiycM+792a4l6Oa84ZRmVguVbfMl8tHsCozsxUKRle2Y/p3cBJ/4G4 1aPJXxH+YLujWsgy+1+8DrM5KBK5sRkm9vUEUioT+Bra/ey1O1bLMXeGpPV4qC1xjDA8 j00w== 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:dkim-signature:arc-authentication-results; bh=B9y69lOYkwrmXvzfGEBOtjbUrBPCU2LLOKtL6nf+QqU=; b=ZDIQj5UdCne/cBw5stmNTuyX4PPrwuch8S5GKs+jDpmUpTEDc+2ItFc48Pt8Op2fpG 4o2enmYLLpKrjvBCl+GehY0ZX1Kp5+iE0R4k75jvFO7k6vvrb6SlNk9nOfNc90jkHMzc bCqWS/6v1mWcqC88eMwM1VefOW4Ng8NNzUgKji1R1GLq1fyvGjC01li1eQiR9I10LvKP Y6dgims/RFaBiySZLfIkYnH+s7OSybqRmz5dwZpiwiHhp9kIArWwnN8FTk+6RqvKnt9O VB9i0mciC6k/BDKNFuEIXIp6kd+5+F/fQM2jfX1iWFe7Gm8uSHfu5h9yrEPw6r0Tvfby 3DSA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=xMDSJ1t7; 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; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 3-v6si6679576plz.337.2018.05.18.00.22.29; Fri, 18 May 2018 00:22:44 -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; dkim=pass header.i=@kernel.org header.s=default header.b=xMDSJ1t7; 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; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752249AbeERHVS (ORCPT + 99 others); Fri, 18 May 2018 03:21:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:46782 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751296AbeERHVQ (ORCPT ); Fri, 18 May 2018 03:21:16 -0400 Received: from localhost (unknown [171.76.76.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 345A920850; Fri, 18 May 2018 07:21:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1526628076; bh=6mifGtKkerH7xjc0GpsejeHNWNcLeTKm9UmDfI7+yAM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=xMDSJ1t7fAwYm5MvaNrHssyII40vJqzqubvpgDZGTyhJ0ZFDS0mjUBW1Ce3/1R0KX 1LYiL5W8ZirQSUNiYB0sbwH8KSwMbOReDJvN8Iv7Q+r/EM4WU6rhuaPePa2dVUWuM2 L6VFu8tYelqpF7yfk6hsFzZRi1oaNoxsgFpxeTUM= Date: Fri, 18 May 2018 12:51:12 +0530 From: Vinod To: Marek Szyprowski Cc: Frank Mori Hess , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, Dan Williams , r.baldyga@hackerion.com, Krzysztof Kozlowski , Bartlomiej Zolnierkiewicz , Linux Samsung SOC Subject: Re: Revert "dmaengine: pl330: add DMA_PAUSE feature" Message-ID: <20180518072112.GG2932@vkoul-mobl> References: <06f54061-c537-b399-e493-ec2cdf4def5d@samsung.com> <20180515062144.GC13271@vkoul-mobl> <20180517041946.GQ13271@vkoul-mobl> <20180518040349.GB2932@vkoul-mobl> <7f0b7404-ee12-977f-02a4-a463d1873aee@samsung.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7f0b7404-ee12-977f-02a4-a463d1873aee@samsung.com> User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 18-05-18, 08:28, Marek Szyprowski wrote: > Hi Vinod, > > Okay, I see that in theory, there are some tricky bits in implementing DMA > support in UART drivers. On the other hand there are already drivers > with seems > to be working fine. This discussion is about revert of the feature > present in > pl330 driver, which is required by other in-kernel driver without proper > fix to > them. > > Can we drop it for now and discuss what and how should be implemented to > make > everyone happy, without any regressions? Sure am dropping the revert, we can always bring it back if it is required -- ~Vinod