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 A9B51ECAAA1 for ; Thu, 15 Sep 2022 13:45:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229921AbiIONpA (ORCPT ); Thu, 15 Sep 2022 09:45:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58044 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229919AbiIONob (ORCPT ); Thu, 15 Sep 2022 09:44:31 -0400 Received: from mail-oi1-f174.google.com (mail-oi1-f174.google.com [209.85.167.174]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6611298762; Thu, 15 Sep 2022 06:44:14 -0700 (PDT) Received: by mail-oi1-f174.google.com with SMTP id o204so2265285oia.12; Thu, 15 Sep 2022 06:44:14 -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=gMxTOzHkcWge9Q4IbSisMNPR1RGRWkYO9XtQCHRh3ms=; b=TEO2sCL/aFR9F3dzJdQhDu9qQFFKUa1zDvLH9fPR3vbm0Ac6cWwItXnwonQUQC1ruy XYhECCQqf3o+hDzk5v3egd5EyXuACkJarM0WcgJwX/o/0UuQfwJX1Vbs3t1xkHXKN8l9 13HJ9zxs6W7yQhVaflgMZE1Zb9DDtHIovc4V1cD4kbV4CjVfXXMPOVWQrrYR5FFznA+V 0gikp+2byTt7obuiWFNW4bbIwZaVXmETcJ0WjxdJ8ehQX6uh7qY+1kxDhzzSfZs5QnuE 6Kf+vkrdhiYQeLUszcibQwr+8edSsvq5VvaExuOQ24cD1odHBtE/iYmndlEaWxhcYUyo JOig== X-Gm-Message-State: ACgBeo1haDr9OrDj1g/p1Hy/xGUTHS7MsGRAGhLMCN9nQ+bBwAMbBWSR arrintZRGYtFvORgoNgrZA== X-Google-Smtp-Source: AA6agR5SNtXFe4DrKZFjR7FljpNxxvhmRUx65guYUAHT/NFf+H7R9cIUqitMOcQ1JIiP3ZGWRLgxLw== X-Received: by 2002:a05:6808:16a4:b0:34f:8f51:3cd6 with SMTP id bb36-20020a05680816a400b0034f8f513cd6mr4526617oib.17.1663249453552; Thu, 15 Sep 2022 06:44:13 -0700 (PDT) Received: from robh.at.kernel.org (66-90-144-107.dyn.grandenetworks.net. [66.90.144.107]) by smtp.gmail.com with ESMTPSA id i27-20020a4a6f5b000000b0046d91d5285asm7887651oof.39.2022.09.15.06.44.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 15 Sep 2022 06:44:13 -0700 (PDT) Received: (nullmailer pid 1169330 invoked by uid 1000); Thu, 15 Sep 2022 13:44:12 -0000 Date: Thu, 15 Sep 2022 08:44:12 -0500 From: Rob Herring To: Julius Werner Cc: Jian-Jia Su , Dmitry Osipenko , Krzysztof Kozlowski , Rob Herring , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Doug Anderson Subject: Re: [PATCH 2/4 v4] dt-bindings: memory: Add numeric LPDDR compatible string variant Message-ID: <20220915134412.GB1168889-robh@kernel.org> References: <20220915003222.1296421-1-jwerner@chromium.org> <20220915003222.1296421-2-jwerner@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220915003222.1296421-2-jwerner@chromium.org> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Wed, 14 Sep 2022 17:32:20 -0700, Julius Werner wrote: > This patch allows a new kind of compatible string for LPDDR parts in the > device tree bindings, in addition to the existing hardcoded > , strings. The new format contains manufacturer and > part (revision) information in numerical form, such as lpddr3-ff,0201 > for an LPDDR3 part with manufacturer ID ff and revision ID 0201. This > helps cases where LPDDR parts are probed at runtime by boot firmware and > cannot be matched to hardcoded part numbers, such as the firmware on the > qcom/sc7280-herobrine boards does (which supports 4 different memory > configurations at the moment, and more are expected to be added later at > a point where the boot firmware can no longer be updated to specifically > accomodate them). > > Signed-off-by: Julius Werner > --- > .../memory-controllers/ddr/jedec,lpddr-props.yaml | 10 ++++++++++ > .../memory-controllers/ddr/jedec,lpddr2.yaml | 8 +++++--- > .../memory-controllers/ddr/jedec,lpddr3.yaml | 12 ++++++++---- > 3 files changed, 23 insertions(+), 7 deletions(-) > > Changelog: > > - v2 > - Updated commit message to describe intended use case as an example > - v3 > - no changes > - v4 > - no changes > Please add Acked-by/Reviewed-by tags when posting new versions. However, there's no need to repost patches *only* to add the tags. The upstream maintainer will do that for acks received on the version they apply. If a tag was not added on purpose, please state why and what changed.