From patchwork Tue Oct 3 11:12:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 729208 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 01464E7544B for ; Tue, 3 Oct 2023 11:13:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239910AbjJCLND (ORCPT ); Tue, 3 Oct 2023 07:13:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54520 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239876AbjJCLNC (ORCPT ); Tue, 3 Oct 2023 07:13:02 -0400 Received: from mail-pl1-x635.google.com (mail-pl1-x635.google.com [IPv6:2607:f8b0:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C6526C6 for ; Tue, 3 Oct 2023 04:12:58 -0700 (PDT) Received: by mail-pl1-x635.google.com with SMTP id d9443c01a7336-1c736b00639so5525445ad.2 for ; Tue, 03 Oct 2023 04:12:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1696331578; x=1696936378; 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=DJn/XE5IZh1ViEk2mkl0oILYWUWFd3CGaoQa/Tto8Gw=; b=RyuDWkD9tJhj5YN44ILORB5JNlwqb7EWKT0HChFRPblJusW1iqG2/K50sDPDDB1cUb iAEWdgB4mrL+LDrIscqfodLBikbf/RY+FNewkDCK53ZfNYkSum239RDFQaHWani6Ztru 3GopquKiM2t3nw23lvcR4GBFr9oOVon/8fbRwxtMAOGSZsnMvy2bgxmHHNMtjWkoXBGZ chI8y+UdM3LjUARDnlSc3qfLvIKbLBgGeVgIaTQsmMVA10PFuxyLVpcaa6yqi3t8HJLO C4VOl2At+RbgdaP9ImxRWMtjJNAY6URmfBRo2EIfSfSJFbQ1QywnJ7iT6QB0Wmgz2rmK edXA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696331578; x=1696936378; 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=DJn/XE5IZh1ViEk2mkl0oILYWUWFd3CGaoQa/Tto8Gw=; b=RoZrMVp5NEsvcUJOCCC2QVmJDipSJ2IyrSLi4c8Ho31+COSoe4MoN2Z5SdAqyJjcvH sbIOY1Ug/7EkYMIV7QQPWYBFeC+4rHJgNNkkKG0pivLmDb85/rRiJZWYbOI95euARgtM jCAtzC+GY117oZmtYJc/LaDhrpSQIEAEQk1srLHpTX1Wv5xi4knEBDFG+6j+RgEeQzQn 1bNmdUz1FKHThi1l4GrNUG5G8LYnbfTinYY7yax6td1WHowAGccX/mrGEKk0uHu64GMe wtzin8Vd3Q+SucTOxQUKLuiH8UTd7pDdM7+9sQUaXX0pp9xqI0mxKJzrVo5NvN8q/oAK QD8A== X-Gm-Message-State: AOJu0YzwWbShz8lv3BjwCJrdzUhBR6Pn8zXgFcsWKFf5hEkXIr0Xo+0M 02WN8/MYf38fGq0SqpH7Px7G X-Google-Smtp-Source: AGHT+IE0lSrF6SzJLMpQ/0kKJ9ghVS9vUDi4JoGX11BrkGN8gx1tpMxZTsY4ro8fWAvXE1LqKDxu4w== X-Received: by 2002:a17:902:8649:b0:1c3:1f0c:fb82 with SMTP id y9-20020a170902864900b001c31f0cfb82mr10669936plt.41.1696331578185; Tue, 03 Oct 2023 04:12:58 -0700 (PDT) Received: from localhost.localdomain ([117.217.185.220]) by smtp.gmail.com with ESMTPSA id d9-20020a170903230900b001ab2b4105ddsm1250328plh.60.2023.10.03.04.12.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Oct 2023 04:12:57 -0700 (PDT) From: Manivannan Sadhasivam To: vireshk@kernel.org, nm@ti.com, sboyd@kernel.org, myungjoo.ham@samsung.com, kyungmin.park@samsung.com, cw00.choi@samsung.com, andersson@kernel.org, konrad.dybcio@linaro.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, jejb@linux.ibm.com, martin.petersen@oracle.com Cc: alim.akhtar@samsung.com, avri.altman@wdc.com, bvanassche@acm.org, linux-scsi@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, quic_asutoshd@quicinc.com, quic_cang@quicinc.com, quic_nitirawa@quicinc.com, quic_narepall@quicinc.com, quic_bhaskarv@quicinc.com, quic_richardp@quicinc.com, quic_nguyenb@quicinc.com, quic_ziqichen@quicinc.com, bmasney@redhat.com, krzysztof.kozlowski@linaro.org, linux-kernel@vger.kernel.org, Rob Herring , Manivannan Sadhasivam Subject: [PATCH v4 1/6] dt-bindings: ufs: common: add OPP table Date: Tue, 3 Oct 2023 16:42:27 +0530 Message-Id: <20231003111232.42663-2-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231003111232.42663-1-manivannan.sadhasivam@linaro.org> References: <20231003111232.42663-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Krzysztof Kozlowski Except scaling UFS and bus clocks, it's necessary to scale also the voltages of regulators or power domain performance state levels. Adding Operating Performance Points table allows to adjust power domain performance state, depending on the UFS clock speed. OPPv2 deprecates previous property limited to clock scaling: freq-table-hz. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Rob Herring Signed-off-by: Manivannan Sadhasivam --- .../devicetree/bindings/ufs/ufs-common.yaml | 36 ++++++++++++++++--- 1 file changed, 32 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/ufs/ufs-common.yaml b/Documentation/devicetree/bindings/ufs/ufs-common.yaml index bbaee4f5f7b2..d7d2c8a136bb 100644 --- a/Documentation/devicetree/bindings/ufs/ufs-common.yaml +++ b/Documentation/devicetree/bindings/ufs/ufs-common.yaml @@ -20,11 +20,24 @@ properties: items: - description: Minimum frequency for given clock in Hz - description: Maximum frequency for given clock in Hz + deprecated: true description: | + Preferred is operating-points-v2. + Array of operating frequencies in Hz stored in the same order - as the clocks property. If this property is not defined or a value in the - array is "0" then it is assumed that the frequency is set by the parent - clock or a fixed rate clock source. + as the clocks property. If either this property or operating-points-v2 is + not defined or a value in the array is "0" then it is assumed that the + frequency is set by the parent clock or a fixed rate clock source. + + operating-points-v2: + description: + Preferred over freq-table-hz. + If present, each OPP must contain array of frequencies stored in the same + order for each clock. If clock frequency in the array is "0" then it is + assumed that the frequency is set by the parent clock or a fixed rate + clock source. + + opp-table: true interrupts: maxItems: 1 @@ -74,9 +87,24 @@ properties: Specifies max. load that can be drawn from VCCQ2 supply. dependencies: - freq-table-hz: [ clocks ] + freq-table-hz: [ 'clocks' ] + operating-points-v2: [ 'clocks', 'clock-names' ] required: - interrupts +allOf: + - if: + required: + - freq-table-hz + then: + properties: + operating-points-v2: false + - if: + required: + - operating-points-v2 + then: + properties: + freq-table-hz: false + additionalProperties: true