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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4500DC433F5 for ; Sun, 30 Jan 2022 10:26:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349856AbiA3K0v (ORCPT ); Sun, 30 Jan 2022 05:26:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58826 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232545AbiA3K0u (ORCPT ); Sun, 30 Jan 2022 05:26:50 -0500 Received: from mail-lj1-x22b.google.com (mail-lj1-x22b.google.com [IPv6:2a00:1450:4864:20::22b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4E90DC061714; Sun, 30 Jan 2022 02:26:50 -0800 (PST) Received: by mail-lj1-x22b.google.com with SMTP id q127so15437550ljq.2; Sun, 30 Jan 2022 02:26:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:date:mime-version:user-agent:subject:content-language :from:to:cc:references:in-reply-to:content-transfer-encoding; bh=PinDelor3CufXvK8+aHhSagfHiFVPHlh3AHqb50TDWs=; b=CR/a4sqPo1ZDp3cFtzWkYcz5JYNrS9kEfWCsIkVssgX/r6S7aiSmUHMk5h1ZYae3Wp +mF4FM3eMny4Cr0OlCIHY9k14jOmVvzqSTQzUtvV4XUaFi+G/jaWmutvx3MYbZtVLSUw zxBTT+UYZ7fhZA4J3CyQ4pBmC7R+YTf8xHxnOkijOZfiBcGdwKzyW4UE1Ivx0612gVC/ HqdoD6CLEYSV6eZ6UCG5bXauYg47rkqOxszNj2+TeRbw80fu45OjaucdcHmQxYIBgbrn N0LdmSftUtaqTAg/qdisP1YDSh7h/mNOwV7FBlGNNZ1rFmtRsTvYQdf9RIGkny2MvBEH sweA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:from:to:cc:references:in-reply-to :content-transfer-encoding; bh=PinDelor3CufXvK8+aHhSagfHiFVPHlh3AHqb50TDWs=; b=3+KM/Fa1WAfH6jxPEMGVljGLwJZWiWPmIFmBh4Yd9n49qt/+Otq5gL8S9YaSFb3Vov liTEJaRjOhmIg4dyoov+OsBXAmiyAQeIkoCcVOCtiO+9e8f+V24Y61/UkefjFczHjUaw biGeU9QgM8I1WKamcXgp8XHYeHN7vtM9G14w9cH+g6Vt38YNy26DKCmf2PcQG/Q8uxCN pWd9f+bnN6EpQIz/t+gZcr1xTKX9qj0/DcRv8yGiR97GjtlPiUVTpiaoIAp4wHUeQ5nl oru7V4tW8ODkBYwMbHawR87B7VY9MbO3CN6Lu0Es+gcE1vNGvxVLQjs+jR5YfQqDgzWd gbgg== X-Gm-Message-State: AOAM530E7AhrbQNWuBXmybXOARuv8JjHSzJc7Nq83qHZccGudjcD/CYt GiC+pcqj5GiFsO9HdS50GTtZXpZ8Izs= X-Google-Smtp-Source: ABdhPJwhAlPDwTu7+tYsnT42KCytF1fr77kMg+Tc3OK1jBl2LXSEJhu+0E5YVL2itdZxTO002BGXNw== X-Received: by 2002:a05:651c:a0f:: with SMTP id k15mr8433823ljq.68.1643538408186; Sun, 30 Jan 2022 02:26:48 -0800 (PST) Received: from [192.168.2.145] (109-252-138-126.dynamic.spd-mgts.ru. [109.252.138.126]) by smtp.googlemail.com with ESMTPSA id m12sm3217332lfj.90.2022.01.30.02.26.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 30 Jan 2022 02:26:47 -0800 (PST) Message-ID: Date: Sun, 30 Jan 2022 13:26:47 +0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH v17 2/4] dmaengine: tegra: Add tegra gpcdma driver Content-Language: en-US From: Dmitry Osipenko To: Akhil R , devicetree@vger.kernel.org, dmaengine@vger.kernel.org, jonathanh@nvidia.com, kyarlagadda@nvidia.com, ldewangan@nvidia.com, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, p.zabel@pengutronix.de, rgumasta@nvidia.com, robh+dt@kernel.org, thierry.reding@gmail.com, vkoul@kernel.org Cc: Pavan Kunapuli References: <1643474453-32619-1-git-send-email-akhilrajeev@nvidia.com> <1643474453-32619-3-git-send-email-akhilrajeev@nvidia.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org 30.01.2022 13:05, Dmitry Osipenko пишет: > Still nothing prevents interrupt handler to fire during the pause. > > What you actually need to do is to disable/enable interrupt. This will > prevent the interrupt racing and then pause/resume may look like this: Although, seems this won't work, unfortunately. I see now that device_pause() doesn't have might_sleep().