From patchwork Fri Dec 8 00:44:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 751704 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="beMCmWRy" Received: from mail-lj1-x231.google.com (mail-lj1-x231.google.com [IPv6:2a00:1450:4864:20::231]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D31741710 for ; Thu, 7 Dec 2023 16:44:20 -0800 (PST) Received: by mail-lj1-x231.google.com with SMTP id 38308e7fff4ca-2c9f9db9567so16972721fa.3 for ; Thu, 07 Dec 2023 16:44:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1701996259; x=1702601059; darn=vger.kernel.org; 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=QilGo2cKamjRbsFJs2rg0xLXZ8zR1vTxwGMlWkCLlFo=; b=beMCmWRyIp4ip+i3Kgt4V1/0XzGh1KZUftLk/Dp0uFrS5Q5TalWA7+IgpHEU9q6Ylz TdTskZ07Ae/5oUEsshTwZeG5IVe8UEX0JXiVr5+qCbF/TyHZqPjpfpu9VecxR8SD6S46 PDHblTg9D/xu/swnzZxbszcJee1B++Syhveir1tfQ8fe3ksoyPOm+bF/Owqzlbt6Nx4B W2kYvV9lMfIThK+G7WhndfV410Vbdppg4D5umDSGms7db26MPXf97dnMDs7W1Cq+LZB1 hga+wv6xMBIVV58dppmcfSDFKYV7CwIrel8B7OIG65Mm7NjnWOFT3O/7y4uWIxsYXxiH mcNQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701996259; x=1702601059; 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=QilGo2cKamjRbsFJs2rg0xLXZ8zR1vTxwGMlWkCLlFo=; b=EAp8PecL0pvh8EMGT7OBNVP7bQiYo1bVQ7Y5YVSWE/Pa4R4Uf50uvEptQJjEqYZ587 Hy51gNSjNXlJqsVIOiNH0ulHLNXrBqI+cfCT6Wz1dg+bo96hJTBogwvPDuHo1zZCoT5B 6aLj/NWqld9HMfAZFKzq9yoNByWBK/zivkIxhYcWjqG8YcOes4zA42EGvvezPmMyo23W 986g5f+gO7KiqFqF1n0nfmNA9SYxwPXr2OJDbv5bvdmTLqQaU3wh2SluaamwbolGxx/3 G7N2mVKZLFwQ7/98nTUpuIkOZAuSvrkMe5RgB2N6lI3/MeAJx+aF+Nj3oyX8s+l1V20t xatA== X-Gm-Message-State: AOJu0YwgM2bBwErbLEK2zQoBVuIKWXR6LzrQ3UhIvQcu5Avy8jXSGFRA lmPJexWQhHWDlqCRymcPicH803/9Gxc3jGSBReU= X-Google-Smtp-Source: AGHT+IHGFM8aYwvSIyUYlKFiY7aIJ9Lc6/7HAd3Bf09+DJjIRY9YRRbIwND2zd2aPx8yIS4p/MsOIw== X-Received: by 2002:a2e:9f48:0:b0:2ca:1923:13a0 with SMTP id v8-20020a2e9f48000000b002ca192313a0mr1951201ljk.14.1701996258987; Thu, 07 Dec 2023 16:44:18 -0800 (PST) Received: from umbar.unikie.fi ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id d1-20020a2eb041000000b002c9f2c7cdecsm82645ljl.22.2023.12.07.16.44.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Dec 2023 16:44:18 -0800 (PST) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, Rob Herring Subject: [PATCH v6 01/11] dt-bindings: soc: qcom: merge qcom,saw2.txt into qcom,spm.yaml Date: Fri, 8 Dec 2023 03:44:07 +0300 Message-Id: <20231208004417.3393299-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231208004417.3393299-1-dmitry.baryshkov@linaro.org> References: <20231208004417.3393299-1-dmitry.baryshkov@linaro.org> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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. Reviewed-by: Rob Herring Signed-off-by: Dmitry Baryshkov --- .../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