From patchwork Mon Jul 31 16:33:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 13335033 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 155E9C00528 for ; Mon, 31 Jul 2023 16:34:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233373AbjGaQe6 (ORCPT ); Mon, 31 Jul 2023 12:34:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38290 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232673AbjGaQey (ORCPT ); Mon, 31 Jul 2023 12:34:54 -0400 Received: from mail-pl1-x631.google.com (mail-pl1-x631.google.com [IPv6:2607:f8b0:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DD26019A2 for ; Mon, 31 Jul 2023 09:34:49 -0700 (PDT) Received: by mail-pl1-x631.google.com with SMTP id d9443c01a7336-1bbf3da0ea9so17281845ad.2 for ; Mon, 31 Jul 2023 09:34:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1690821289; x=1691426089; 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=CX3sPcIP3SsQXddpGgAhiwMO6lb232ip/HjkD9sXmB4=; b=sxjBY4EcBKD8rOJdEAcs94Imqm+WJDZIpX1z4GmauK2JROoM25d4+MHecpoCBhjqy/ 5/pF99yqdcn08WQV2MqMgkVv2YjjORuERyieER5O/KoZ+6YIanyHxupN3JmwRKIFdfty /InPAlAgjkIXxqGRMLG1aLxE3EIpVFDgDlSDUMiJLNrSat9mF3BljLreBrEcfEZ6zELT f6vLtwypT1nUIRJmEAshl5Z1WA7lEqhNWxlF3NpGkV6YzFmeyKGP4+OC005xulzFw94O S6malptvul2yzhHMbAy+5RQqp5BGicB7SmhcgYNlcg2zx9WGrSbwT56JFFoduluVAoqh sdxw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690821289; x=1691426089; 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=CX3sPcIP3SsQXddpGgAhiwMO6lb232ip/HjkD9sXmB4=; b=XEYm0P2iKGU5Yd/mscFOzElICn2mgaA8SAtgH3v4VV63A05ZRqMuJPUTAQ42c/gFvQ 0lG52XUjYBY/5XF2G1kVGRHH9zRPf8EpLRayqqgdenlFLBX68Fg1gcQ7mHD74wbR/k2S i8srPUwblmnZMXB7CmfOqK8wXVSW3z7VsjWt9Lbq/3c/ONNXNl38QDMpIrQNIxzQsyLp tFLveSf8wjv5AVRsTNJh8cWAGxGIq26P0n99K8ZVIfBEvRsaPPR9u5c40VXJa6nlKOnu ASVgBBgihr8OZ0CPJsfTVEFkVe48iIl0tD129yry0BjHFt1mRqaE2inGKgvLParWGiiF ZcMg== X-Gm-Message-State: ABy/qLbfe0U4vmZMu6SHUoMQu36y/uh09OYvbsFEXHh/0Acj5d0odJNZ AtyElvVGPFHiVPowPy6hrLCu X-Google-Smtp-Source: APBJJlHA0K0DAiCD2MprcSrvKYTFO9zT9E+gdRmDiJw6T1/qozlROTZZFEhddBFPY4ugRurtHideVQ== X-Received: by 2002:a17:902:c950:b0:1bb:833c:6ba8 with SMTP id i16-20020a170902c95000b001bb833c6ba8mr10659806pla.56.1690821289270; Mon, 31 Jul 2023 09:34:49 -0700 (PDT) Received: from localhost.localdomain ([117.193.209.129]) by smtp.gmail.com with ESMTPSA id w8-20020a170902e88800b001bb1f09189bsm8779541plg.221.2023.07.31.09.34.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 Jul 2023 09:34:48 -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 v3 1/6] dt-bindings: ufs: common: add OPP table Date: Mon, 31 Jul 2023 22:03:52 +0530 Message-Id: <20230731163357.49045-2-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230731163357.49045-1-manivannan.sadhasivam@linaro.org> References: <20230731163357.49045-1-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 | 34 +++++++++++++++++-- 1 file changed, 31 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/ufs/ufs-common.yaml b/Documentation/devicetree/bindings/ufs/ufs-common.yaml index 47a4e9e1a775..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 @@ -75,8 +88,23 @@ properties: dependencies: 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