From patchwork Wed Feb 1 08:02:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jun Nie X-Patchwork-Id: 13123898 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 5657FC63797 for ; Wed, 1 Feb 2023 08:03:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231945AbjBAIDh (ORCPT ); Wed, 1 Feb 2023 03:03:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231591AbjBAID3 (ORCPT ); Wed, 1 Feb 2023 03:03:29 -0500 Received: from mail-pf1-x435.google.com (mail-pf1-x435.google.com [IPv6:2607:f8b0:4864:20::435]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B04831BAE0 for ; Wed, 1 Feb 2023 00:03:20 -0800 (PST) Received: by mail-pf1-x435.google.com with SMTP id g9so12032026pfo.5 for ; Wed, 01 Feb 2023 00:03:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=RtQMOuLPUu9y14QU5PWL+7La4FpScoZwnwss15ZtdRI=; b=Xepeu3O83s4uTvCuSV3OO+telBNV8kPanlT4gGCqWkY7eV5b1+zB2vcLHz/LSkovlj LBo5/1f5zHAzrsIvMJNWZEQYugTe3D300/zr5mP9CUYSrWHA5SRFmeAoMVUiNjLj7dg/ 8Ff51hnOlz1/faWYDGh/IxSxY7+FK4RWFl2CYzRUDhjlSXLK/1FT41WUqCqrDW9WDvL4 xfcoi3uyxKw9RrpYGRcaMQW+958XCjgRGO0nXGr8rN4I/ejo76AU3sr8x3OpL67u2LZJ ENkp+ovUWpPQHqI+oA4eagesFJbYDOyWsNFfc4eOeAlpMu671FGGQv9pkEaV5IKmO38N v6ew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=RtQMOuLPUu9y14QU5PWL+7La4FpScoZwnwss15ZtdRI=; b=1j/bC6yRQYDlqIb7x1j9EIz9zfo6SRhiYEtWdn9NLI14qauG+/tD/khSNf95e4yhG7 biNVm1X6GoNbyDDN7clbOQzy1ZazxrB72EUjYo9GnpahFZzWOerFqN78v9cZAAu/edya xU5Ks4sOmmq+NZIMRlM094J+/SyRghp/RuKdRlsruRRZybquTe7driw0l+ZQo4x8xjyM LqlZ33hut8xnGUgO98Mu8UPNeUxFOYXXVpATpOQfp46BSmf3WatghQVnLEbFfSUe6qsx vu+sySc27ylcezSsFThtNsL+MGdvmFuPh8CL2sUHBZCePIRg//X2cyoDOXTmuKr1r51h OVOw== X-Gm-Message-State: AO0yUKVPQgqTUqeLhW5VsloFsBNnyTs4XHcs2fJyzINF3VEdMAW7uc4W KW9L1Ke+xqQaur2YZNePjVw75A== X-Google-Smtp-Source: AK7set+OFG6fQlO2ibvtOffuh+zjSAy6ksInAd3moynI9d7JOfSmqP/FSK1GsxO/35VgsqsuVqBirg== X-Received: by 2002:aa7:96e1:0:b0:593:d46b:ab73 with SMTP id i1-20020aa796e1000000b00593d46bab73mr1308055pfq.29.1675238599923; Wed, 01 Feb 2023 00:03:19 -0800 (PST) Received: from niej-dt-7B47.. (80.251.214.228.16clouds.com. [80.251.214.228]) by smtp.gmail.com with ESMTPSA id dc6-20020a056a0035c600b005897f5436c0sm10961814pfb.118.2023.02.01.00.03.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Feb 2023 00:03:19 -0800 (PST) From: Jun Nie To: myungjoo.ham@samsung.com, kyungmin.park@samsung.com, cw00.choi@samsung.com Cc: bryan.odonoghue@linaro.org, linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, Jun Nie Subject: [PATCH 1/2] dt-bindings: interconnect: Add Qualcomm CCI dt-bindings Date: Wed, 1 Feb 2023 16:02:26 +0800 Message-Id: <20230201080227.473547-1-jun.nie@linaro.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add devicetree binding of Qualcomm CCI on MSM8939. Signed-off-by: Jun Nie --- .../bindings/interconnect/qcom,cci.yaml | 81 +++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 Documentation/devicetree/bindings/interconnect/qcom,cci.yaml diff --git a/Documentation/devicetree/bindings/interconnect/qcom,cci.yaml b/Documentation/devicetree/bindings/interconnect/qcom,cci.yaml new file mode 100644 index 000000000000..100c440ba220 --- /dev/null +++ b/Documentation/devicetree/bindings/interconnect/qcom,cci.yaml @@ -0,0 +1,81 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interconnect/mediatek,cci.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Cache Coherent Interconnect (CCI) frequency and voltage scaling + +maintainers: + - Jun Nie + +description: | + Qualcomm Cache Coherent Interconnect (CCI) is a hardware engine used by + MSM8939. The driver is to scale its frequency and adjust the voltage in + hardware accordingly. The voltage provider is modeled as power domain on + MSM8939, so power domain dts node is required. + +properties: + compatible: + enum: + - qcom,msm8939-cci + + clocks: + maxItems: 1 + + operating-points-v2: true + opp-table: + type: object + +required: + - compatible + - clocks + - operating-points-v2 + - nvmem-cells + - power-domains + +additionalProperties: false + +examples: + - | + cci: cci { + compatible = "qcom,msm8939-cci"; + clocks = <&apcs2>; + operating-points-v2 = <&cci_opp_table>; + power-domains = <&cpr>; + nvmem-cells = <&cpr_efuse_speedbin_pvs>; + }; + + cci_opp_table: cci-opp-table { + compatible = "operating-points-v2"; + + cci_opp1: opp-200000000 { + opp-hz = /bits/ 64 <200000000>; + opp-supported-hw = <0x3f>; + required-opps = <&cpr_opp3>; + }; + + cci_opp2: opp-297600000 { + opp-hz = /bits/ 64 <297600000>; + opp-supported-hw = <0x3f>; + required-opps = <&cpr_opp12>; + }; + + cci_opp3: opp-400000000 { + opp-hz = /bits/ 64 <400000000>; + opp-supported-hw = <0x1>; + required-opps = <&cpr_opp14>; + }; + + cci_opp4: opp-400000000 { + opp-hz = /bits/ 64 <400000000>; + opp-supported-hw = <0x3e>; + required-opps = <&cpr_opp15>; + }; + + cci_opp5: opp-595200000 { + opp-hz = /bits/ 64 <595200000>; + opp-supported-hw = <0x3f>; + required-opps = <&cpr_opp17>; + }; + };