From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8BC5613DDAA; Sun, 5 Apr 2026 08:58:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775379489; cv=none; b=LO0rQXJeGjFxmY3WITJ27WUbD+m3sYwQttvQWzviQExM157LJEiYDPBcuW/yAqoiEvUrrhkMBi179aLlW6UpV9Nb5J+EJRt5dkoP4ha2sWHAIahJrlLPeAbvicc2VWvO/h/3mPavKrqdJrsgocpftm/calZdwdgP0Pvz+6nH00g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775379489; c=relaxed/simple; bh=5dQzE8wflI/d/EcjA48MtPpHApsBRZVBaLTYGWz5s78=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=aIIqCsM9rCFIkFs899YplhtE2YtTDXh/BVIqFgfzsJzyb1rACussZ//PPO1vsmtNV+PL/Z+gyg0TeUH5FEKtk0LhvyUZ2DTkrxiBKBbGhtgNgMSR1B487QAc3uT81VNS0fBrcPAchYCKZRaBA0Knr7iSUe2Sc/Wf9pv3h5e/3dI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZZDtpCaJ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ZZDtpCaJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2E488C116C6; Sun, 5 Apr 2026 08:58:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775379489; bh=5dQzE8wflI/d/EcjA48MtPpHApsBRZVBaLTYGWz5s78=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=ZZDtpCaJyfsG2k1iVp4XGjihdu7XtoTNJLBRl8SumMDDlB9MPQLiDavQAi+NKEqXy nABb7oy//X9KYECY7MyYJO60o01DS8GUrBoSh0BfM1e4CTgLvOqkV3zQC3SPyP0CtA +S7w0SuV92x6y0Zs4xyZQHYxQkCrV5c9NixzS7DW4RcH1l4YYXpGcg+8xbWlsK7tHQ 5HWY9mcZNPQtJOv+1M1ZcmUKwV0P5dDT30cx+2xIeZI0VHFegxHz7WeN7szC1V7e02 M0Qs8GtON58zHYaF7gd9z7mj64HkQ4v82fS7FupFwH5L1ZPLQiLQ/yRBihHm4Wteng k6AaVFjcM9sJw== Message-ID: Date: Sun, 5 Apr 2026 10:58:04 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] dt-bindings: spi: renesas,rzv2h-rspi: Document RZ/G3L SoC To: Biju Das , "biju.das.au" , Fabrizio Castro , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , "magnus.damm" Cc: "linux-spi@vger.kernel.org" , "linux-renesas-soc@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Prabhakar Mahadev Lad References: <20260304074907.9697-1-biju.das.jz@bp.renesas.com> <20260304074907.9697-2-biju.das.jz@bp.renesas.com> <13d4fd79-784e-407a-9f2b-41cd9a86f232@kernel.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit On 02/04/2026 16:10, Biju Das wrote: >>>> >>>> So even after my objections here: >>>> https://lore.kernel.org/all/9d08ddda-403e-458d-95e4-4e76915df85d@kern >>>> el.org/ >>>> >>>> this was not fixed and Renesas did not provide actual cross-patch review. >>> >>> That patch is not correct. See below. >>> >>>> >>>> This is still probably wrong as pointed out by other patches by Renesas. >>>> Also, you cannot have flexible names. >>> >>> You can have "rx", "tx" in any order and {rx, tx} should be unique dma >>> specifier >> >> No. You cannot. I just told you so. Please read writing-bindings for arguments. > > > - DO define properties in terms of constraints. How many entries? What are > possible values? What is the order? All these constraints represent the ABI > as well. > > > Is that the reason you're saying we cannot have flexible names for DMAs? Yes > > Are you expecting the RZ/G3L DMA entries to be like below? Please let me know. > > This is not flexible — the user always needs to specify RX first, followed by TX. > > + dmas: > + maxItems: 2 > + > + dma-names: > + items: > + - const: rx > + - const: tx Yes > > Best regards, Krzysztof