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 X-Spam-Level: X-Spam-Status: No, score=-2.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 18BC5C64E75 for ; Fri, 27 Nov 2020 14:25:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C8EF421D7A for ; Fri, 27 Nov 2020 14:25:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="V9BtXLPO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731136AbgK0OZW (ORCPT ); Fri, 27 Nov 2020 09:25:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60884 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730855AbgK0OZT (ORCPT ); Fri, 27 Nov 2020 09:25:19 -0500 Received: from mail-pg1-x541.google.com (mail-pg1-x541.google.com [IPv6:2607:f8b0:4864:20::541]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 654D6C0613D1; Fri, 27 Nov 2020 06:25:19 -0800 (PST) Received: by mail-pg1-x541.google.com with SMTP id 62so4445214pgg.12; Fri, 27 Nov 2020 06:25:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=4BHoPQWs3wfoV3g79VgV8GEhoq3XXt8Ikk0xMwv5WoI=; b=V9BtXLPOii4DpQATk+MmCsK+Ve2A/MjKgvZePZQJyiEHSpItKt8KhEPdLvQEYEOKcy OP/HVvR2CWG+PuXjgeuy68l4UVFF3yRyTkF0P/9dUFEsFhfIw9DMVgwbv3c748hYDlZO phu+1bdlsZwgoGQIE1SXKEerfddqam+4MTfgS1pSXB2IZ/8as50BGgREwJbF22EO/2+G xfi+InCshjurjLJjWYpuXdXvaCfwVQDyyBQ5MXqLZI1RF8XpjXQjZ69I46+xiO3YenTZ g7UsznWy1CW2glmc9pxQW+o1Iu0NB2klZi6O/nP6UQJ6HxRIii+p3ueBbcv+bz1iJE3v BmKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=4BHoPQWs3wfoV3g79VgV8GEhoq3XXt8Ikk0xMwv5WoI=; b=j796bvwGLMV3HHBJYHOWJytE2oyBxm0PmtE4INYmhTxqebFAU4l0M8WYaNCgGk8Lca r/Gamr5c7M+5PT1um3ddf2fH1wA1ZhiUM2oozCCqQPLlS2iiNd2f7DtIPPnb8zg5H2xs pQL04+4lZ9mDBrMvdR/Zi6RT4+iB0/Rkc637PdGYwn6ARVuDATH96pytC6fUQxuJpmjC o2mhpqhH2xz9H5PjK6Q38++jYiTAmqJvx6J454nkKgxgSLpRytpiKR60gT/eyFieTXGZ ZmsZx917TwMg+c8Gap+FYfy19zYM/joTs0MNuVbY5HHtLUH5TjNxrRskQpUkT57WI6SJ jbKg== X-Gm-Message-State: AOAM532eboZQA0cm9fZaYI1boMqIYBbtbbO6zEQ4l/SV6sPhSV8Def9F gdmi6PUG/Qgn0aQ0e0u5EQiItstacXSmC1fINAU= X-Google-Smtp-Source: ABdhPJwwwmFIw2kctAp4qvXc/0jW/FjQNuczdO+/Ii1MF8qwXUPmNUj/XTt32yfEIgSQo1JNUdeC3g9PWWaRJ6X6Ba4= X-Received: by 2002:a17:90a:4816:: with SMTP id a22mr10437588pjh.228.1606487119026; Fri, 27 Nov 2020 06:25:19 -0800 (PST) MIME-Version: 1.0 References: <20201127130834.136348-1-alexandru.ardelean@analog.com> <20201127130834.136348-3-alexandru.ardelean@analog.com> In-Reply-To: <20201127130834.136348-3-alexandru.ardelean@analog.com> From: Andy Shevchenko Date: Fri, 27 Nov 2020 16:26:07 +0200 Message-ID: Subject: Re: [PATCH v3 3/3] spi: dt-bindings: document zero value for spi-{rx,tx}-bus-width properties To: Alexandru Ardelean Cc: linux-spi , devicetree , Linux Kernel Mailing List , Rob Herring , Mark Brown , "Bogdan, Dragos" Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 27, 2020 at 3:08 PM Alexandru Ardelean wrote: > > Following a change to the SPI framework, providing a value of zero for > 'spi-rx-bus-width' and 'spi-tx-bus-width' is now possible and will > essentially mean than no RX or TX is allowed. than -> that I'm wondering if we have a possibility to strict this for controllers that always duplex (I assume that schema works in a way that the generic bindings is most relaxed in comparison to the device specific ones in case of the same binding in question). -- With Best Regards, Andy Shevchenko