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 16396C54E76 for ; Tue, 17 Jan 2023 17:10:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232616AbjAQRKu (ORCPT ); Tue, 17 Jan 2023 12:10:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41464 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233612AbjAQRKt (ORCPT ); Tue, 17 Jan 2023 12:10:49 -0500 Received: from mail-wm1-x32d.google.com (mail-wm1-x32d.google.com [IPv6:2a00:1450:4864:20::32d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B8C4B2FCC9 for ; Tue, 17 Jan 2023 09:10:48 -0800 (PST) Received: by mail-wm1-x32d.google.com with SMTP id fl11-20020a05600c0b8b00b003daf72fc844so5236265wmb.0 for ; Tue, 17 Jan 2023 09:10:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; 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=DJZrjs9gIAePj2JWZucgl4KqkX8gBUba8+l84UFe0sk=; b=lxAQjJd0DQR3iHiWtUCfBch7u0vWQTPf5HM/vCjp0OQahVUf3gJe4QMUe5LmDCt+4e OCX3dsHgG9SEAnlp8XJJWoN9XaAc9Mdv+IDrPje2wo7p1PMSFlo4jrZf8D9fYE5wFPH/ 3q0OA8f+fxHVlRD+4aHURCViLOGSelep5PuRiGIHpR7aWCLqb8/w0WT/idMH7gdok6j9 Q/mN3cwXiF5FWWEho968LADfveV+FSTugTmNVX6+Sk7cL8bVsCQ1BqCb8td8I4+65aKU bvUjhm80sb9vbRvNYnWfzoi7G05kVf6Xakiu3R9GHuciQyqs8DKXuIynFelr7RR75rGz 6vfg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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=DJZrjs9gIAePj2JWZucgl4KqkX8gBUba8+l84UFe0sk=; b=GzigXqbc7KyLwfbqrSoj//GBVqs4SvHOIxZnY2avjt944xWODqi+x6fIeFZsZJqBZL K9/J/7KnNifQrgNRCYtO869xtx/rmIXAbhgZYJG/kIF4FliVbTjQoWZtixoDEkwPp3c2 bJoXmcfPqGiizcXhPDT2bmuBbOyzI9p8CeVECfyUWi+zk6rrgBgA8O/X6rCtBhQw1wf8 oteCbQjSCDvAdDBVI4q7Ww8MmVyLmaI9JKKZXO4GG6b2nc5XD7L4DmZjxLxs/mOqdVlD 9QJ6EnK8kR/TfqmN7YS3oES8hFw6nlgMmqtzdQxf7/74jjfKJjX/qMJUXeuyQIHAJ4rj FbTA== X-Gm-Message-State: AFqh2koCZq3xtLQa/9GxvG3zVswlJan+lBcdfeVlXbeopI8uHcVtgiyv kl5BZmN/ekU0+MLxYzZC9fgdNw== X-Google-Smtp-Source: AMrXdXvTPTuCnoyaO9K4WPo2MoPlGBzfRoZz27kKrLtZdpI/CyGyIFOYIq6OYekJUMbMEZkOXTKspw== X-Received: by 2002:a05:600c:4256:b0:3da:1d51:ef9e with SMTP id r22-20020a05600c425600b003da1d51ef9emr3741760wmm.17.1673975447372; Tue, 17 Jan 2023 09:10:47 -0800 (PST) Received: from [192.168.1.109] ([178.197.216.144]) by smtp.gmail.com with ESMTPSA id l6-20020a05600c4f0600b003db0b0cc2afsm2163802wmq.30.2023.01.17.09.10.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 17 Jan 2023 09:10:45 -0800 (PST) Message-ID: <78fcf85f-b56b-79d1-f2fe-c038f424c72d@linaro.org> Date: Tue, 17 Jan 2023 18:10:43 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 Subject: Re: [PATCH 1/2] spi: dt-bindings: spi-fsl-qspi: add optional sampling-delay Content-Language: en-US To: Mario Kicherer , Rob Herring Cc: linux-spi@vger.kernel.org, han.xu@nxp.com, broonie@kernel.org, krzysztof.kozlowski+dt@linaro.org, devicetree@vger.kernel.org References: <20230116115050.2983406-1-dev@kicherer.org> <20230116115050.2983406-2-dev@kicherer.org> <20230117141057.GA2991740-robh@kernel.org> <85967a3fbce7051449f8d2b29ce5a47c@kicherer.org> From: Krzysztof Kozlowski In-Reply-To: <85967a3fbce7051449f8d2b29ce5a47c@kicherer.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org On 17/01/2023 17:33, Mario Kicherer wrote: > Hello, > > unfortunately, the rx-sample-delay-ns property does not fit here, as we > can only delay > the sampling point between zero and three "half cycles" (or edges), not > by an arbitrary > number of nanoseconds. Why this is a problem for FSL but not for other platforms having exactly the same constraints/property? https://lore.kernel.org/all/20221208062955.2546-6-xiangsheng.hou@mediatek.com/ Best regards, Krzysztof