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 3BF5DCDB483 for ; Tue, 17 Oct 2023 17:42:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343915AbjJQRmo (ORCPT ); Tue, 17 Oct 2023 13:42:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51902 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234619AbjJQRmm (ORCPT ); Tue, 17 Oct 2023 13:42:42 -0400 Received: from mail-oi1-x230.google.com (mail-oi1-x230.google.com [IPv6:2607:f8b0:4864:20::230]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9097CF0 for ; Tue, 17 Oct 2023 10:42:39 -0700 (PDT) Received: by mail-oi1-x230.google.com with SMTP id 5614622812f47-3b2b1af964dso3248018b6e.1 for ; Tue, 17 Oct 2023 10:42:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; t=1697564559; x=1698169359; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=rPz/XE7kyZI3rqX/gW9OA3u4MOOTZR6TB5rRl4itwhs=; b=NPYRdxawSM8Pj98hHtZ0hv7DfMstgEY1cm+smjxiP93UYH8oiCcGEJ7pl6Ulycltxa L7crYaT91lUTFugINyOOEtR21E5Z/r6zD1Zyznr06CUZOX28REPXq1xU5lGCGfamjGWZ jI8RLKZXJYg8BTdrunZBWCMdpmG1PVARdTfZHQ+T89rMSMzTqCOgewIs2aJN1WiiOpjf Kk5rO7vDYN7tQRVZSnC+ugNRrU7gdq8LO1yr1SbvblyOlKlma33S82PDJt1FeG7CXdzW NKu5JYMMK6Q8H88VJBnLHTQCUN2CnvOdCSWoiLGT6Z89cAK3JASNODqfxYsE3luBA+ri rbEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697564559; x=1698169359; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=rPz/XE7kyZI3rqX/gW9OA3u4MOOTZR6TB5rRl4itwhs=; b=KUh072duEnvl0jKSQD5XhjSAbuiHQHYGIjpwcRTDuFtv0LSPt5YzfXWAIvOhA9xJ/X blvH8A6XqBw1aUMfCvvLTalsXt/l1b7OqHT54hrghd4ahkB0L9JN21hnUbLl3VVZ/6IM o5M6I/bg7Zic9izDDU++G2eSWrJ9ATpK2Wjbs4Njch03kWX3un2mHIfFYXtjYAC9p5mw gLgXWHKju0DTpnDE54j9ZIHp3Kl5dNxioUZ3dvpmHKNAeUuMeLmJfZ3zj59HTH3wAj64 ZyilErYgbLXhyWLHZWKoH5qorjSNLRnsIZLsY7Nci/tiMriDclBs2J/ZYieljKcnS01v h2Ow== X-Gm-Message-State: AOJu0YyHji+pLX4cjhs9S6kppvjVhJJ9xA/M2Y9l4Ypfu7uUR3hzI/X0 J6cyuvTUmlsT5fyvyld2eAg3hg== X-Google-Smtp-Source: AGHT+IFEfoBhjOQCm3H2dwONN2OZeU0Zpiqlzxa0ALnC7U/VrgPgviuWtLFU33wwArf5EqgRuHAO2w== X-Received: by 2002:a05:6808:170b:b0:3a7:37ae:4a47 with SMTP id bc11-20020a056808170b00b003a737ae4a47mr3577036oib.12.1697564558899; Tue, 17 Oct 2023 10:42:38 -0700 (PDT) Received: from ?IPV6:2600:1700:2000:b002:95cc:ccc5:95bc:7d2c? ([2600:1700:2000:b002:95cc:ccc5:95bc:7d2c]) by smtp.gmail.com with ESMTPSA id g5-20020ac85805000000b00419cb97418bsm785313qtg.15.2023.10.17.10.42.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 17 Oct 2023 10:42:38 -0700 (PDT) Message-ID: <8905630a-30dc-4b22-9d6c-fd4af97728bf@sifive.com> Date: Tue, 17 Oct 2023 12:42:37 -0500 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/4] dt-bindings: dma: sf-pdma: add new compatible name Content-Language: en-US To: Conor Dooley , Rob Herring Cc: shravan chippa , green.wan@sifive.com, vkoul@kernel.org, krzysztof.kozlowski+dt@linaro.org, palmer@dabbelt.com, paul.walmsley@sifive.com, conor+dt@kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, nagasuresh.relli@microchip.com, praveen.kumar@microchip.com, Conor Dooley References: <20231003042215.142678-1-shravan.chippa@microchip.com> <20231003042215.142678-3-shravan.chippa@microchip.com> <20231004133021.GB2743005-robh@kernel.org> <20231005-wanted-plausible-71dae05ccc7b@spud> From: Samuel Holland In-Reply-To: <20231005-wanted-plausible-71dae05ccc7b@spud> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Conor, On 2023-10-05 5:54 AM, Conor Dooley wrote: > On Wed, Oct 04, 2023 at 08:30:21AM -0500, Rob Herring wrote: >> Any fallback is only useful if an OS only understanding the fallback >> will work with the h/w. Does this h/w work without the driver changes? > > Yes. > I've been hoping that someone from SiFive would come along, and in > response to this patchset, tell us _why_ the driver does not make use of > out-of-order transfers to begin with. I have raised this question internally. So far I have not seen anything to suggest we need strictly-ordered transfers either, but I still need to confirm this. Regards, Samuel