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 1F2E73822BA; Mon, 30 Mar 2026 09:50:58 +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=1774864258; cv=none; b=HmSAcCmvATe3dM1ulCqMMBi86t8FpEyeudlq3h8lUKJAM5x4C4eveTgaFn9F71F+Lou3ZBombtmYeuwsEk9nd6x620c4m7i0Q2ygp+yrRl0U1xgfZp1XVkDB516nh8N6yzYlyqadVrUm9uDb0KwsoBs0m93q76hwBfk2uTNLf48= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774864258; c=relaxed/simple; bh=jB9gp/oZQ75zSCDe5UMUH4BKrNzgl1hVk53Jb8g+N8Q=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Dsj2UUCQ3xb3l9tieAn283habo2/lc/mFU5J4pV7Fgq7VuwZsljxFnwBCdNLrMEW8sqxIjOQYrRCERCHLCkgwGXjq4CqMa4yZyz4kURKWhXnHdfoQ+0Luhpa/MC3Qe/O4FOtha6tKE1PJr5LwlOO0uNui2eQat/sFVqa047ZdjI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=G5iD+Ns+; 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="G5iD+Ns+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 78C43C2BC9E; Mon, 30 Mar 2026 09:50:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774864258; bh=jB9gp/oZQ75zSCDe5UMUH4BKrNzgl1hVk53Jb8g+N8Q=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=G5iD+Ns+EDGRO7UlWITQlRc1YenBheSgAnDPgBpruCtq9a2Z7EJWu/j2XirbV7Wwo khACPexeXhJkARWt3dbLdgZaQg+GtTlJCQpnFUE9nNRwxjotlLMzvfpN1yskUJnnmR 7xPhprl45fgl+e/AS+ayMeGbDnoeRgw8/K9/IOpmRwkSm9kMhtC0IT+kN4ppH54be3 GUIbFEwgm3Wzg2Jxq1ca9T4+SgRY8qgJYvswZl2f8q3+rpwdXUGmtVpYC+EWTjpOb3 mbVi4doA0WSN7YXEsKfhyWGSGqkx4Epe/gWnw0hmkI1dfHB7UhawLRnlV1pBuQRnqz XO9W/zQG5EAEw== Message-ID: Date: Mon, 30 Mar 2026 11:50:51 +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 v2 6/7] dt-bindings: PCI: intel,lgm-pcie: Make atu resource mandatory To: Florian Eckert , Lorenzo Pieralisi , =?UTF-8?Q?Krzysztof_Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Johan Hovold , Sajid Dalvi , Ajay Agarwal , Krzysztof Kozlowski , Conor Dooley , Rahul Tanwar Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Eckert.Florian@googlemail.com, ms@dev.tdt.de References: <20260330-pcie-intel-gw-v2-0-8bd07367a298@dev.tdt.de> <20260330-pcie-intel-gw-v2-6-8bd07367a298@dev.tdt.de> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 30/03/2026 11:07, Florian Eckert wrote: > The ATU information is already set in the dwc core if it is specified in > the DTS. The driver uses its own value here [1]. This information is > hardware specific and should therefore be maintained in the DTS rather > than in the source. > > Backwards compatibility is not an issue here [5], as the driver is > exclusively used by Maxlinear. What does that mean exactly? It is not used outside of Maxlinear company, so it is purely internal device and no one outside of Maxlinear has it? Then we can as well remove it and I don't quite get why you are working on this (since no one can use it outside of Maxlinear...). > > Old DTS entry for PCIe: > > reg = <0xd1000000 0x1000>, > <0xd3000000 0x20000>, > <0xd0c41000.0x1000>; > reg-names = "dbi", "config", "app"; > > New DTS entry for PCIe: > > reg = <0xd1000000 0x1000>, > <0xd10c0000 0x1000>, > <0xd3000000 0x20000>, > <0xd0c41000.0x1000>; > reg-names = "dbi", "atu", "config", "app"; Drop, irrelevant. You still break all users of this binding. Best regards, Krzysztof