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 97D8AC433FE for ; Mon, 3 Oct 2022 17:52:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229673AbiJCRwZ (ORCPT ); Mon, 3 Oct 2022 13:52:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229599AbiJCRwU (ORCPT ); Mon, 3 Oct 2022 13:52:20 -0400 Received: from mail-oo1-f42.google.com (mail-oo1-f42.google.com [209.85.161.42]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BD385360B0; Mon, 3 Oct 2022 10:52:17 -0700 (PDT) Received: by mail-oo1-f42.google.com with SMTP id u19-20020a4a9e93000000b004757198549cso7239672ook.0; Mon, 03 Oct 2022 10:52:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date; bh=xvsdxEtnYkPfQLyO5cLOKwbi4UXuqIx2u55wTtOO8RA=; b=Nfy8Nw48bBbDGKwCiLUYA5ypPWktrBgO1Wn0vAdLJR/pHvmBBab7GthRNhlTRJVZUD n7wCgxU6uzsL7Nip2dJBrBj/NN90KrXXKLIwzUFoAQ05hhFnGLqGXr5/9dEjJnEx9Rrl OPcirkaI4FKGQHVJ1SCteKtttTqX6spPGtcC073MAdqGMwrGRu131wtPRrcB1VDPRc0v pennHHiuf6jTVK7PEGYUmYXDn7LBhLZ6d0JAK6tCeTF3kMHVodnTYYLs6fa8PuaoAe/1 VyTybK19Q+ElVFtZpzK3KuyKLmt6NyaVdSOu19JfBfynwCI/iIzwOdRyxYaTMiu2Yx// ifBw== X-Gm-Message-State: ACrzQf1g+S2tjDVYiF5xtiVpKIqouX6s8QMvdHs5dt8RHhSN3h3RPTdM qMF7nk4ZNFkV0F4XG9/DL6jxGZFD2A== X-Google-Smtp-Source: AMsMyM4DDvuio5dvVe3dVnQDdky65TKGZdFB9jx3JkXpTO1eyscdyWrn9nxAsZXfqsK3VvOLN+2iKg== X-Received: by 2002:a9d:774e:0:b0:65b:c11d:3776 with SMTP id t14-20020a9d774e000000b0065bc11d3776mr8220313otl.373.1664819536960; Mon, 03 Oct 2022 10:52:16 -0700 (PDT) Received: from macbook.herring.priv (66-90-144-107.dyn.grandenetworks.net. [66.90.144.107]) by smtp.gmail.com with ESMTPSA id c2-20020a4ad8c2000000b0046e8d284170sm2157914oov.41.2022.10.03.10.52.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Oct 2022 10:52:16 -0700 (PDT) Received: (nullmailer pid 2504070 invoked by uid 1000); Mon, 03 Oct 2022 17:52:15 -0000 Date: Mon, 3 Oct 2022 12:52:15 -0500 From: Rob Herring To: Julius Werner Cc: devicetree@vger.kernel.org, Jian-Jia Su , Dmitry Osipenko , Rob Herring , Krzysztof Kozlowski , Doug Anderson , linux-kernel@vger.kernel.org Subject: Re: [PATCH 4/4 v5] dt-bindings: memory: Add jedec,lpddrX-channel binding Message-ID: <166481953479.2504015.9253665477423699363.robh@kernel.org> References: <20220930220606.303395-1-jwerner@chromium.org> <20220930220606.303395-4-jwerner@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220930220606.303395-4-jwerner@chromium.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 30 Sep 2022 15:06:06 -0700, Julius Werner wrote: > This patch adds a new device tree binding for an LPDDR channel to serve > as a top-level organizing node for LPDDR part nodes nested below it. An > LPDDR channel needs to have an "io-width" property to describe its width > (this is important because this width does not always match the io-width > of the part number, indicating that multiple parts are wired in parallel > on the same channel), as well as one or more nested "rank@X" nodes. > Those represent information about the individual ranks of each LPDDR > part connected on that channel and should match the existing > "jedec,lpddrX" bindings for individual LPDDR parts. > > New platforms should be using this node -- the existing practice of > providing a raw, toplevel "jedec,lpddrX" node without indication of how > many identical parts are in the system should be considered deprecated. > > Signed-off-by: Julius Werner > --- > .../ddr/jedec,lpddr-channel.yaml | 146 ++++++++++++++++++ > .../ddr/jedec,lpddr-props.yaml | 10 +- > 2 files changed, 155 insertions(+), 1 deletion(-) > create mode 100644 Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr-channel.yaml > > Changelog: > > - v2: > - changed $ref for rank subnode to specifically match LPDDR type in > compatible string > - moved `reg` up to be listed right below `compatible` > - v3: > - no changes > - v4: > - no changes > - v5: > - no changes > Reviewed-by: Rob Herring