From patchwork Mon Aug 19 10:09:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Niklas Cassel X-Patchwork-Id: 11100613 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4539C1398 for ; Mon, 19 Aug 2019 10:10:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3389328662 for ; Mon, 19 Aug 2019 10:10:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 27A1C28671; Mon, 19 Aug 2019 10:10:13 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9B22D28662 for ; Mon, 19 Aug 2019 10:10:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726728AbfHSKKM (ORCPT ); Mon, 19 Aug 2019 06:10:12 -0400 Received: from mail-lj1-f194.google.com ([209.85.208.194]:34062 "EHLO mail-lj1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726491AbfHSKKL (ORCPT ); Mon, 19 Aug 2019 06:10:11 -0400 Received: by mail-lj1-f194.google.com with SMTP id x18so1206557ljh.1 for ; Mon, 19 Aug 2019 03:10:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=bFsYBz11w/0+2ipDFc6RAzNYkyX/rGj3LfC3+f/vlp4=; b=beyi9uGJnPpG8O0vT7qQxG//HWz2f6IINF0hBwHiHXB3kM5NEIyK3NG65ahyuzltQn HwoxDU9bsUkPsLT2MHe2pzdSOftUh6tGgYxJ2PUa0Sw7H1uV3stySjV8LZplZKEUFRo1 1Maodh2jZXqnsXwBVOS+g7SjZozY0N2P2ppxGP3+EPBO5n3rpwN1+RvTcGELgeGjE/+c SEYlGvgFZQlQ3cYuGhsm3Qg7gDua8/tTFp179tb3eMFcaWj5mh9KwHU7WogsqXdVypED HPITvLx5YQBBjPJOA37N4CS1M6xlUFJupOFzYyH+79Fvw+WcGFoKXUvrZfAYTlPZMgRY ZtCg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=bFsYBz11w/0+2ipDFc6RAzNYkyX/rGj3LfC3+f/vlp4=; b=s1uRvCIrNqTBP1SST/F3VlWQnyMmcnC5bAl0sdjIQGOKj4DIYweXwQ+JYwWh/Ee6EB HKpjDvpcFWyKSjkzygRwpNkpT+djIRlxauB7tvU3Ers7XYp1ST0p+XaOInIAkS32ZJNA PfUhhpPne1upVVXMWwFhb49kvk7Xi2GE0VlmP2wyUSJ+qk+9sjbxwOEAg4ctmmzpoh8y 7wu6Z3UPZVTXR+0832zVeND4z/CBYHtuyjDPMktIe3cqPe94cuaIbLMpgnf1hwodQw8+ 1AS34ib3vrxwKEfQR39pEngFCQr09ZJ5rwSm6qLY9sVPeVsmQoAWe/VpgatFUOR/B0xN 296g== X-Gm-Message-State: APjAAAVcDDDQovTeuGSGPR4HuGHUIDG2AVp3aR44X24fQiJP1g6j8mHz e/LiEoC91UvOUoW+QjlgFek/oQ== X-Google-Smtp-Source: APXvYqyKKUveTAbKAVd1czgb5WboXpJSisP+Hj43L+mlwuCq45a9rieZfHZEJUNuJ3gFablY68RhWA== X-Received: by 2002:a05:651c:29b:: with SMTP id b27mr12017195ljo.74.1566209409256; Mon, 19 Aug 2019 03:10:09 -0700 (PDT) Received: from localhost.localdomain (ua-84-219-138-247.bbcust.telenor.se. [84.219.138.247]) by smtp.gmail.com with ESMTPSA id g9sm1401833lje.90.2019.08.19.03.10.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Aug 2019 03:10:08 -0700 (PDT) From: Niklas Cassel To: Andy Gross , Ilia Lin , Viresh Kumar , Nishanth Menon , Stephen Boyd Cc: linux-arm-msm@vger.kernel.org, jorge.ramirez-ortiz@linaro.org, bjorn.andersson@linaro.org, ulf.hansson@linaro.org, Niklas Cassel , Rob Herring , Rob Herring , Mark Rutland , linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 06/14] dt-bindings: cpufreq: qcom-nvmem: Support pstates provided by a power domain Date: Mon, 19 Aug 2019 12:09:57 +0200 Message-Id: <20190819100957.17095-1-niklas.cassel@linaro.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190725104144.22924-7-niklas.cassel@linaro.org> References: <20190725104144.22924-7-niklas.cassel@linaro.org> MIME-Version: 1.0 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Some Qualcomm SoCs have support for Core Power Reduction (CPR). On these platforms, we need to attach to the power domain provider providing the performance states, so that the leaky device (the CPU) can configure the performance states (which represent different CPU clock frequencies). Signed-off-by: Niklas Cassel Reviewed-by: Rob Herring --- Changes since V2: -Picked up Rob's Reviewed-by on V2. -As Rob pointed out in V1, it should be "In 'cpu' nodes" and not "In 'cpus' nodes". -In Example 2: include the qcom,opp-fuse-level property rather than "...", since Rob pointed out in the review of V1 of "dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR", that this property was missing in this patch. .../bindings/opp/qcom-nvmem-cpufreq.txt | 113 +++++++++++++++++- 1 file changed, 112 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/opp/qcom-nvmem-cpufreq.txt b/Documentation/devicetree/bindings/opp/qcom-nvmem-cpufreq.txt index c5ea8b90e35d..1e6261570f3e 100644 --- a/Documentation/devicetree/bindings/opp/qcom-nvmem-cpufreq.txt +++ b/Documentation/devicetree/bindings/opp/qcom-nvmem-cpufreq.txt @@ -14,7 +14,7 @@ operating-points-v2 table when it is parsed by the OPP framework. Required properties: -------------------- -In 'cpus' nodes: +In 'cpu' nodes: - operating-points-v2: Phandle to the operating-points-v2 table to use. In 'operating-points-v2' table: @@ -23,6 +23,15 @@ In 'operating-points-v2' table: Optional properties: -------------------- +In 'cpu' nodes: +- power-domains: A phandle pointing to the PM domain specifier which provides + the performance states available for active state management. + Please refer to the power-domains bindings + Documentation/devicetree/bindings/power/power_domain.txt + and also examples below. +- power-domain-names: Should be + - 'cpr' for qcs404. + In 'operating-points-v2' table: - nvmem-cells: A phandle pointing to a nvmem-cells node representing the efuse registers that has information about the @@ -682,3 +691,105 @@ soc { }; }; }; + +Example 2: +--------- + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + CPU0: cpu@100 { + device_type = "cpu"; + compatible = "arm,cortex-a53"; + reg = <0x100>; + .... + clocks = <&apcs_glb>; + operating-points-v2 = <&cpu_opp_table>; + power-domains = <&cprpd>; + power-domain-names = "cpr"; + }; + + CPU1: cpu@101 { + device_type = "cpu"; + compatible = "arm,cortex-a53"; + reg = <0x101>; + .... + clocks = <&apcs_glb>; + operating-points-v2 = <&cpu_opp_table>; + power-domains = <&cprpd>; + power-domain-names = "cpr"; + }; + + CPU2: cpu@102 { + device_type = "cpu"; + compatible = "arm,cortex-a53"; + reg = <0x102>; + .... + clocks = <&apcs_glb>; + operating-points-v2 = <&cpu_opp_table>; + power-domains = <&cprpd>; + power-domain-names = "cpr"; + }; + + CPU3: cpu@103 { + device_type = "cpu"; + compatible = "arm,cortex-a53"; + reg = <0x103>; + .... + clocks = <&apcs_glb>; + operating-points-v2 = <&cpu_opp_table>; + power-domains = <&cprpd>; + power-domain-names = "cpr"; + }; + }; + + cpu_opp_table: cpu-opp-table { + compatible = "operating-points-v2-kryo-cpu"; + opp-shared; + + opp-1094400000 { + opp-hz = /bits/ 64 <1094400000>; + required-opps = <&cpr_opp1>; + }; + opp-1248000000 { + opp-hz = /bits/ 64 <1248000000>; + required-opps = <&cpr_opp2>; + }; + opp-1401600000 { + opp-hz = /bits/ 64 <1401600000>; + required-opps = <&cpr_opp3>; + }; + }; + + cpr_opp_table: cpr-opp-table { + compatible = "operating-points-v2-qcom-level"; + + cpr_opp1: opp1 { + opp-level = <1>; + qcom,opp-fuse-level = <1>; + }; + cpr_opp2: opp2 { + opp-level = <2>; + qcom,opp-fuse-level = <2>; + }; + cpr_opp3: opp3 { + opp-level = <3>; + qcom,opp-fuse-level = <3>; + }; + }; + +.... + +soc { +.... + cprpd: cpr@b018000 { + compatible = "qcom,qcs404-cpr", "qcom,cpr"; + reg = <0x0b018000 0x1000>; + .... + vdd-apc-supply = <&pms405_s3>; + #power-domain-cells = <0>; + operating-points-v2 = <&cpr_opp_table>; + .... + }; +}; From patchwork Mon Aug 19 10:12:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Niklas Cassel X-Patchwork-Id: 11100617 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A6D95912 for ; Mon, 19 Aug 2019 10:12:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 95B94232A7 for ; 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[84.219.138.247]) by smtp.gmail.com with ESMTPSA id t4sm2512368ljh.9.2019.08.19.03.12.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Aug 2019 03:12:41 -0700 (PDT) From: Niklas Cassel To: Andy Gross , Viresh Kumar , Nishanth Menon , Stephen Boyd Cc: linux-arm-msm@vger.kernel.org, jorge.ramirez-ortiz@linaro.org, bjorn.andersson@linaro.org, ulf.hansson@linaro.org, Niklas Cassel , Rob Herring , Mark Rutland , linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 09/14] dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR Date: Mon, 19 Aug 2019 12:12:38 +0200 Message-Id: <20190819101238.17335-1-niklas.cassel@linaro.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190725104144.22924-10-niklas.cassel@linaro.org> References: <20190725104144.22924-10-niklas.cassel@linaro.org> MIME-Version: 1.0 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add qcom-opp bindings with properties needed for Core Power Reduction (CPR). CPR is included in a great variety of Qualcomm SoCs, e.g. msm8916 and msm8996. CPR was first introduced in msm8974. Co-developed-by: Jorge Ramirez-Ortiz Signed-off-by: Jorge Ramirez-Ortiz Signed-off-by: Niklas Cassel Reviewed-by: Stephen Boyd Reviewed-by: Rob Herring --- Changes since V2: qcom,opp-fuse-level is really a required property and not an optional property, so properly define it as such. .../devicetree/bindings/opp/qcom-opp.txt | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 Documentation/devicetree/bindings/opp/qcom-opp.txt diff --git a/Documentation/devicetree/bindings/opp/qcom-opp.txt b/Documentation/devicetree/bindings/opp/qcom-opp.txt new file mode 100644 index 000000000000..32eb0793c7e6 --- /dev/null +++ b/Documentation/devicetree/bindings/opp/qcom-opp.txt @@ -0,0 +1,19 @@ +Qualcomm OPP bindings to describe OPP nodes + +The bindings are based on top of the operating-points-v2 bindings +described in Documentation/devicetree/bindings/opp/opp.txt +Additional properties are described below. + +* OPP Table Node + +Required properties: +- compatible: Allow OPPs to express their compatibility. It should be: + "operating-points-v2-qcom-level" + +* OPP Node + +Required properties: +- qcom,opp-fuse-level: A positive value representing the fuse corner/level + associated with this OPP node. Sometimes several corners/levels shares + a certain fuse corner/level. A fuse corner/level contains e.g. ref uV, + min uV, and max uV.