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 B977BC433EF for ; Wed, 13 Jul 2022 00:57:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232488AbiGMA5j (ORCPT ); Tue, 12 Jul 2022 20:57:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43666 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229824AbiGMA5i (ORCPT ); Tue, 12 Jul 2022 20:57:38 -0400 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CC688D038A for ; Tue, 12 Jul 2022 17:57:35 -0700 (PDT) Received: by mail-pj1-x1035.google.com with SMTP id p9so9798597pjd.3 for ; Tue, 12 Jul 2022 17:57:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=message-id:date:mime-version:user-agent:subject:to:cc:references :from:in-reply-to; bh=Cmj15vgBQQ6lHal4aKm1D4fPixRtDSI5zPVb5OK/FnM=; b=U9JCPiETT2/1YCCbjmGQSKnlWYdlgoqSqka+EDgdIxOSx8JD16bTi5i4VoWedsWSD/ CR9rwqPReVyp+KRQjnLt4ZFxmV2W7QWET3laA/lIkBc0coe1Zm5FlKUxknCacNO6KKj7 mkPfPcTGWJwHR5a3ajVdzm5b89jg9o7foy7FQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :to:cc:references:from:in-reply-to; bh=Cmj15vgBQQ6lHal4aKm1D4fPixRtDSI5zPVb5OK/FnM=; b=Y2VKvTjGjujvtu5FD/McVn3A6ddAHWixT5NxdMlyqydOJBoNWxAmIrZzp3aJ9Q2dgI FwrVkuDBwPF9/+5fpb1Ug+sbXCU+oN/kJ/0Oc2yZ+Vq7BsivT6KO66tVl7wfuLduIRkj N3oLwPh5TmTu9pt68sEni/FXtRi5ceTWiPgtUGzg0xbsh8zxCZyT+NMiGpzKd34dg9Z2 wGwayj/FHLpgpqhkOuvoVjrlQqiNXGilZw/a25ifPcHfYPokgi+8+fz1Vx3aIClmk6xU BGETxecT/C/XmbS0/RvnVMTRaWmNBh1DC0rq7hSNPS8FXcJK/+5qm91k6gfDlVMQppR0 cUGQ== X-Gm-Message-State: AJIora+n3m2e/zgtcUS2oi1bJZy/jYwKX8CAZGtMtqexq9CtXa4R40AY qsVpw9dDeSiAuRYxtPqk3Xc5og== X-Google-Smtp-Source: AGRyM1vALZcyF1V69ql1Qy2kNcw4ifQrMsHzaBRsfnTbbscALd6WRemTOm7e55BONMd8+UdxcqYi4A== X-Received: by 2002:a17:90a:474c:b0:1ec:f898:d85b with SMTP id y12-20020a17090a474c00b001ecf898d85bmr998008pjg.11.1657673855171; Tue, 12 Jul 2022 17:57:35 -0700 (PDT) Received: from [192.168.52.129] ([192.19.222.250]) by smtp.gmail.com with ESMTPSA id v2-20020a626102000000b00529a0667ff9sm7467906pfb.126.2022.07.12.17.57.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 12 Jul 2022 17:57:34 -0700 (PDT) Message-ID: <6efb1cfe-6129-276a-eeb3-44147304d211@broadcom.com> Date: Tue, 12 Jul 2022 17:57:32 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Subject: Re: [RFC PATCH 1/3] dt-bindings: arm64: bcmbca: Merge BCM4908 into BCMBCA To: Krzysztof Kozlowski , Linux ARM List Cc: kursad.oney@broadcom.com, anand.gore@broadcom.com, dan.beygelman@broadcom.com, f.fainelli@gmail.com, Broadcom Kernel List , joel.peshkin@broadcom.com, Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, rafal@milecki.pl References: <20220712021144.7068-1-william.zhang@broadcom.com> <20220712021144.7068-2-william.zhang@broadcom.com> <94b0ab39-279d-d3c2-98a4-054c10ad041c@broadcom.com> From: William Zhang In-Reply-To: Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="00000000000050df7805e3a54504" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --00000000000050df7805e3a54504 Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 7/12/22 11:18, Krzysztof Kozlowski wrote: > On 12/07/2022 19:37, William Zhang wrote: >>>> + - description: BCM4908 Family based boards >>>> + items: >>>> + - enum: >>>> + # BCM4908 SoC based boards >>>> + - brcm,bcm94908 >>>> + - asus,gt-ac5300 >>>> + - netgear,raxe500 >>>> + # BCM4906 SoC based boards >>>> + - brcm,bcm94906 >>>> + - netgear,r8000p >>>> + - tplink,archer-c2300-v1 >>>> + - enum: >>>> + - brcm,bcm4908 >>>> + - brcm,bcm4906 >>>> + - brcm,bcm49408 >>> >>> This is wrong. brcm,bcm94908 followed by brcm,bcm4906 does not look >>> like valid list of compatibles. >>> >> For 4908 board variant, it will need to be followed by 4908 chip. Sorry >> for the basic question but is there any requirement to enforce this kind >> of rule? I would assume dts writer know what he/she is doing and select >> the right combination. > > The entire point of DT schema is to validate DTS. Combination like above > prevents that goal. > > Best regards, > Krzysztof Understand the DT schema purpose. But items property allows multiple enums in the list which gives a lot of flexibility but make it hard to validate. I am not familiar with DT schema, is there any directive to specify one enum value depending on another so dts validation tool can report error if combination is wrong? This is our preferred format of all bcmbca compatible string especially when we could have more than 10 chip variants for the same chip family and we really want to work on the chip family id. We will make sure they are in the right combination in our own patch and patch from other contributors. Would this work? If not, I will probably have to revert the change of 4908(maybe append brcm,bcmbca as this chip belongs to the same bca group) and use "enum board variant", "const main chip id", "brcm,bca" for all other chips as our secondary choice. --00000000000050df7805e3a54504 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQcAYJKoZIhvcNAQcCoIIQYTCCEF0CAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg3HMIIFDTCCA/WgAwIBAgIQeEqpED+lv77edQixNJMdADANBgkqhkiG9w0BAQsFADBMMSAwHgYD VQQLExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UE AxMKR2xvYmFsU2lnbjAeFw0yMDA5MTYwMDAwMDBaFw0yODA5MTYwMDAwMDBaMFsxCzAJBgNVBAYT AkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTEwLwYDVQQDEyhHbG9iYWxTaWduIEdDQyBS MyBQZXJzb25hbFNpZ24gMiBDQSAyMDIwMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA 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