From patchwork Sun Jun 25 20:25:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 696266 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 0B32DC00528 for ; Sun, 25 Jun 2023 20:26:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229980AbjFYUZ7 (ORCPT ); Sun, 25 Jun 2023 16:25:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60190 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229683AbjFYUZy (ORCPT ); Sun, 25 Jun 2023 16:25:54 -0400 Received: from mail-lf1-x12c.google.com (mail-lf1-x12c.google.com [IPv6:2a00:1450:4864:20::12c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6C260E4E for ; Sun, 25 Jun 2023 13:25:52 -0700 (PDT) Received: by mail-lf1-x12c.google.com with SMTP id 2adb3069b0e04-4f76a0a19d4so3276360e87.2 for ; Sun, 25 Jun 2023 13:25:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1687724750; x=1690316750; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=k2Nz0ILPn3EOKaQkWVWab6M25ZwY+ZxoTLvBh9FKz8o=; b=aWel7HW/JXNoVUkF5FXL/5n8Z0xVjoQDrx/5pdrGJiYoKiXYCzG9KgomSsU+o6zF2A WI5pJpHWjrWVviczdm959y+mgPk/g3BdjiHVOdu/c7syVGc3BbACPIEGO5esspOyZK5n v82vd/qsrJn2IggmlmVxgtVqVja14ce5yc+5V7AhWdizvXs/C4oF1of/+yLmMXdURZ2/ aVrK7JBw9ysMz6DgiUMFSvo80E1dc7cvhYlr4u4d13b8geuyCk3mA6xkn8K6goS9UxFO mL43SGlvVeydLRP67KozgrDCD9edZOLxYEIl5r518OcKn0spIXQT8Vqh5y3dlccABLWK 9U9g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687724750; x=1690316750; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=k2Nz0ILPn3EOKaQkWVWab6M25ZwY+ZxoTLvBh9FKz8o=; b=JoFvKzJValuTktOyvC3R1i8IFH8g+0jyRyP9k0oooYnIHaifZJUObCuPh3H5Gh7EH/ apUo61GaCnYu/KAn2s6VGqaL4sSb2g2zkyc+/WHTYqlK6wL2/NArA21y/2jdC+F3FyCj OKUWThSKLxH2+DRUh1U2Wd+YsNoIrYWRcDFJ6kRwdCURWJfUMpFmcLQmC3HNr+7qa+Y+ cQaOVou8/1VCOauPyk6l6TEq4uGlDxCx1E0C6hvQrrMPjAkyRQBdJFQFE7C9rE2xyObc EuwYxZPrkiEuQJWbJrtC9Uc7lUdkaWYQ3icjGhiirKqQ2HmBqjmNozs710Y3sMEY5JY8 rBRw== X-Gm-Message-State: AC+VfDy55F6l6EZZ7JVoRVMdcRsNg+bCx1dOPacO0iHcs58ZoTafHjOe e2Tn+wzNGuFLrCcKbhf9FHQdjw== X-Google-Smtp-Source: ACHHUZ6Mgbq0WTTe1FZF23x/VuJ9Cvbn9txxpD+uM9o8/8VD9zcT+uWuAd/VHmrMifKmSNOM293P3g== X-Received: by 2002:a19:5e01:0:b0:4f6:45af:70b8 with SMTP id s1-20020a195e01000000b004f645af70b8mr14700353lfb.58.1687724750738; Sun, 25 Jun 2023 13:25:50 -0700 (PDT) Received: from umbar.unikie.fi ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id m21-20020a195215000000b004f8427f8716sm787537lfb.262.2023.06.25.13.25.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 25 Jun 2023 13:25:50 -0700 (PDT) From: Dmitry Baryshkov To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andy Gross , Bjorn Andersson , Konrad Dybcio , Ilia Lin , Viresh Kumar , Nishanth Menon , Stephen Boyd , Michael Turquette , "Rafael J. Wysocki" , Georgi Djakov Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, Christian Marangi , Stephan Gerhold Subject: [PATCH v2 02/26] dt-bindings: soc: qcom: merge qcom,saw2.txt into qcom,spm.yaml Date: Sun, 25 Jun 2023 23:25:23 +0300 Message-Id: <20230625202547.174647-3-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230625202547.174647-1-dmitry.baryshkov@linaro.org> References: <20230625202547.174647-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The Qualcomm SPM / SAW2 device is described in two bindigns files: arm/msm/qcom,saw2.txt and soc/qcom/qcom,spm.yaml. Merge the former into the latter, adding detailed device node description. While we are at it, also rename qcom,spm.yaml to qcom,saw2.yaml to follow the actual compatible used for these devices. The regulator property is retained as is. It will be changed in the later patches. Signed-off-by: Dmitry Baryshkov Reviewed-by: Rob Herring --- .../devicetree/bindings/arm/msm/qcom,saw2.txt | 58 ------------------- .../qcom/{qcom,spm.yaml => qcom,saw2.yaml} | 26 +++++++-- 2 files changed, 20 insertions(+), 64 deletions(-) delete mode 100644 Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt rename Documentation/devicetree/bindings/soc/qcom/{qcom,spm.yaml => qcom,saw2.yaml} (64%) diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt b/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt deleted file mode 100644 index c0e3c3a42bea..000000000000 --- a/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt +++ /dev/null @@ -1,58 +0,0 @@ -SPM AVS Wrapper 2 (SAW2) - -The SAW2 is a wrapper around the Subsystem Power Manager (SPM) and the -Adaptive Voltage Scaling (AVS) hardware. The SPM is a programmable -power-controller that transitions a piece of hardware (like a processor or -subsystem) into and out of low power modes via a direct connection to -the PMIC. It can also be wired up to interact with other processors in the -system, notifying them when a low power state is entered or exited. - -Multiple revisions of the SAW hardware are supported using these Device Nodes. -SAW2 revisions differ in the register offset and configuration data. Also, the -same revision of the SAW in different SoCs may have different configuration -data due the differences in hardware capabilities. Hence the SoC name, the -version of the SAW hardware in that SoC and the distinction between cpu (big -or Little) or cache, may be needed to uniquely identify the SAW register -configuration and initialization data. The compatible string is used to -indicate this parameter. - -PROPERTIES - -- compatible: - Usage: required - Value type: - Definition: Must have - "qcom,saw2" - A more specific value could be one of: - "qcom,apq8064-saw2-v1.1-cpu" - "qcom,msm8226-saw2-v2.1-cpu" - "qcom,msm8974-saw2-v2.1-cpu" - "qcom,apq8084-saw2-v2.1-cpu" - -- reg: - Usage: required - Value type: - Definition: the first element specifies the base address and size of - the register region. An optional second element specifies - the base address and size of the alias register region. - -- regulator: - Usage: optional - Value type: boolean - Definition: Indicates that this SPM device acts as a regulator device - device for the core (CPU or Cache) the SPM is attached - to. - -Example 1: - - power-controller@2099000 { - compatible = "qcom,saw2"; - reg = <0x02099000 0x1000>, <0x02009000 0x1000>; - regulator; - }; - -Example 2: - saw0: power-controller@f9089000 { - compatible = "qcom,apq8084-saw2-v2.1-cpu", "qcom,saw2"; - reg = <0xf9089000 0x1000>, <0xf9009000 0x1000>; - }; diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,spm.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,saw2.yaml similarity index 64% rename from Documentation/devicetree/bindings/soc/qcom/qcom,spm.yaml rename to Documentation/devicetree/bindings/soc/qcom/qcom,saw2.yaml index 20c8cd38ff0d..84b3f01d590c 100644 --- a/Documentation/devicetree/bindings/soc/qcom/qcom,spm.yaml +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,saw2.yaml @@ -1,18 +1,25 @@ # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) %YAML 1.2 --- -$id: http://devicetree.org/schemas/soc/qcom/qcom,spm.yaml# +$id: http://devicetree.org/schemas/soc/qcom/qcom,saw2.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Qualcomm Subsystem Power Manager +title: Qualcomm Subsystem Power Manager / SPM AVS Wrapper 2 (SAW2) maintainers: - Andy Gross - Bjorn Andersson description: | - This binding describes the Qualcomm Subsystem Power Manager, used to control - the peripheral logic surrounding the application cores in Qualcomm platforms. + The Qualcomm Subsystem Power Manager is used to control the peripheral logic + surrounding the application cores in Qualcomm platforms. + + The SAW2 is a wrapper around the Subsystem Power Manager (SPM) and the + Adaptive Voltage Scaling (AVS) hardware. The SPM is a programmable + power-controller that transitions a piece of hardware (like a processor or + subsystem) into and out of low power modes via a direct connection to + the PMIC. It can also be wired up to interact with other processors in the + system, notifying them when a low power state is entered or exited. properties: compatible: @@ -34,8 +41,15 @@ properties: - const: qcom,saw2 reg: - description: Base address and size of the SPM register region - maxItems: 1 + items: + - description: Base address and size of the SPM register region + - description: Base address and size of the alias register region + minItems: 1 + + regulator: + type: boolean + description: Indicates that this SPM device acts as a regulator device + device for the core (CPU or Cache) the SPM is attached to. required: - compatible