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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C0B09C433EF for ; Thu, 14 Oct 2021 16:40:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9DEBA60551 for ; Thu, 14 Oct 2021 16:40:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232267AbhJNQmu (ORCPT ); Thu, 14 Oct 2021 12:42:50 -0400 Received: from mail-ot1-f46.google.com ([209.85.210.46]:37749 "EHLO mail-ot1-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231839AbhJNQmu (ORCPT ); Thu, 14 Oct 2021 12:42:50 -0400 Received: by mail-ot1-f46.google.com with SMTP id b4-20020a9d7544000000b00552ab826e3aso7290512otl.4; Thu, 14 Oct 2021 09:40:45 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=bVtoOLFk8vKv2ef2PdCLzrS7N3cFMVjjFu9rOm79RAk=; b=B39Xt1QYZrmi9sC5tQkGlyPj4mJkcridBRbtWy5KSURnQXYx3t/cPID9WwPlXgd+gS 0SAImDhkXUH2mHZWmQtapzhkxwm9n7pxl8l+NXQEz2aEfRrJQWt25WK22jXuuV9qT9ld /Z8unm2FcaQN8EzWo3lyStXU6C+sXCM/X+O3FaSYxH0FEjgsfH+5Q964gpTacXIrLF+9 jlrMgDHGgOPNRRI2Y/HUN9aYeJDsmnQ/eu8OB5KJtgDn+z2mcdPowJ/IyPcWQG8E75V3 Z92c51o02w481fx2fdi22ehVWfxtQ5PEvCBuMDkfqD8YqwQMhrjDcjbROuvDIqtrs4ix yN7Q== X-Gm-Message-State: AOAM530aVCQzVcJVg94Grk5s3z0HnKOj+jHufCb0qkTuWFD9MM20YzZI qodBXi+P/mfz4102ptrjsE3ReysoiQ== X-Google-Smtp-Source: ABdhPJyBXbZ+H53VwJdr37cLIej35EHN4+HdXOPjB3Dt01BeSPzFoovMQV+UMtG5znAcKgFiib+YWA== X-Received: by 2002:a9d:6f93:: with SMTP id h19mr3460489otq.14.1634229644976; Thu, 14 Oct 2021 09:40:44 -0700 (PDT) Received: from robh.at.kernel.org (66-90-148-213.dyn.grandenetworks.net. [66.90.148.213]) by smtp.gmail.com with ESMTPSA id u21sm663324oiv.25.2021.10.14.09.40.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Oct 2021 09:40:44 -0700 (PDT) Received: (nullmailer pid 3508590 invoked by uid 1000); Thu, 14 Oct 2021 16:40:43 -0000 Date: Thu, 14 Oct 2021 11:40:43 -0500 From: Rob Herring To: Stephan Gerhold Cc: phone-devel@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, ~postmarketos/upstreaming@lists.sr.ht, Rob Herring , Andy Gross , Bjorn Andersson Subject: Re: [PATCH v2 08/15] dt-bindings: arm: cpus: Document qcom,msm8916-smp enable-method Message-ID: References: <20211004201921.18526-1-stephan@gerhold.net> <20211004204955.21077-8-stephan@gerhold.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211004204955.21077-8-stephan@gerhold.net> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On Mon, 04 Oct 2021 22:49:48 +0200, Stephan Gerhold wrote: > Since MSM8916 is an ARM v8 64-bit SoC the CPU cores are normally booted > using "psci" or "spin-table". Unfortunately, some devices come with signed > 32-bit-only firmware without ARM64 and PSCI support. This setup is easy to > support since it's very similar to older 32-bit only Qualcomm SoCs > (e.g. MSM8226) and only requires adding a few new definitions to already > existing drivers. > > Document the qcom,msm8916-smp enable-method. It is actually just an alias > of qcom,msm8226-smp since it should be implemented identically. > The enable-method is only valid on ARM32 and must not be used on ARM64. > > Signed-off-by: Stephan Gerhold > --- > Changes in v2: > - Clarify that this is only supposed to be used on ARM 32-bit > (Add comment to commit message and DT schema) > > The "see above for ARM v8 64-bit" comment refers to this a few lines > above in the DT schema: > > # On ARM v8 64-bit this property is required > - enum: > - psci > - spin-table > --- > Documentation/devicetree/bindings/arm/cpus.yaml | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > Reviewed-by: Rob Herring