From patchwork Thu Oct 12 17:21:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 13419572 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 CCFC0C41513 for ; Thu, 12 Oct 2023 17:22:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1379653AbjJLRWJ (ORCPT ); Thu, 12 Oct 2023 13:22:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49480 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1379612AbjJLRWH (ORCPT ); Thu, 12 Oct 2023 13:22:07 -0400 Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C8450E8 for ; Thu, 12 Oct 2023 10:21:51 -0700 (PDT) Received: by mail-pl1-x629.google.com with SMTP id d9443c01a7336-1c9e95aa02dso3267605ad.0 for ; Thu, 12 Oct 2023 10:21:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1697131311; x=1697736111; 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=emz03f3uxdP7Dq6lqeINaZBEdrIm5oTH0vEaEEX0iS4=; b=Jsp8cAqZRfPoQAwyDLvOynGiSaXDUBIpdQIr9Sr23jifeiqV1AVkD9mJr/dTBRlynR KzkeSfRdRsqx6ez3115boHO09wZqYQJuJ67bSH1WWI8g0srt3Vocn1BKnnYToSZ6wJ3F sx6RS8jsItRWx7EXxbgz+qORos3T8PSdZrwGPdI0+A0f4YD1Jp2qe6NOpzAV5+DnlsOr ikwyGtUbcTk4LEZWJb8e8bi+3rnDo3scwgSAoxRNahKhjSYpd1dBfi9POhKNSebJYJhe HO+smd61N3vYZIq7uhoWf3QecIJfMwrzwVDxKMWqV7ynX3zSlVOSp+LO5zmiQaTMOYmX FRYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697131311; x=1697736111; 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=emz03f3uxdP7Dq6lqeINaZBEdrIm5oTH0vEaEEX0iS4=; b=BDFvbZwcGx9eKQRB/ge3p8teis7/BRL3EfYJ89Bj6mf8N4n+kebpMAlFPkaep8Nxe2 jourx+++4aYWoD/uPT56towBiPB0SbbpClxX0UMlqHWuDkrnxEsAlwccIt4pLTspY8WN RefLdg1iWheRac3BLVvARj1YDPqiqNw3ll6v693xW0zKlufwHxmEcTl5GTQ2nPn/ERH5 gXmCWNqY4wqEJbIa6qIYRvX5pXqwI+V8KksS02ycnnbNIFs3z3euaJrtCTOBHN0xCaW/ fRWrbJVhWWBwSyDxIYwRdU7KqmVx9ICvPBAt8gEdd4bhlPoqICon3gG0m4bmYMfLeKPg LYjA== X-Gm-Message-State: AOJu0YxkO9FdCT3PEukcA0MUUeg/zvYTN9evbupAsbMp0KIz4GTAKlxK bfjHNWy0vfCs2nVOVkLBrwBT X-Google-Smtp-Source: AGHT+IEw8ngM9ONqiOY/Lpq6bCfVEQBRoq3XO4ZLXCgxF2MnAul4Mauj/JUwnqv5RWxQLqInE84Psg== X-Received: by 2002:a17:902:e5d1:b0:1c6:362:3553 with SMTP id u17-20020a170902e5d100b001c603623553mr31262262plf.31.1697131311172; Thu, 12 Oct 2023 10:21:51 -0700 (PDT) Received: from localhost.localdomain ([120.138.12.180]) by smtp.gmail.com with ESMTPSA id f9-20020a170902ce8900b001c75a07f62esm2242359plg.34.2023.10.12.10.21.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Oct 2023 10:21:50 -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, alessandro.carminati@gmail.com, Rob Herring , Manivannan Sadhasivam Subject: [PATCH v7 1/5] dt-bindings: ufs: common: add OPP table Date: Thu, 12 Oct 2023 22:51:25 +0530 Message-Id: <20231012172129.65172-2-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231012172129.65172-1-manivannan.sadhasivam@linaro.org> References: <20231012172129.65172-1-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 | 35 +++++++++++++++++-- 1 file changed, 32 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/ufs/ufs-common.yaml b/Documentation/devicetree/bindings/ufs/ufs-common.yaml index bbaee4f5f7b2..985ea8f64de8 100644 --- a/Documentation/devicetree/bindings/ufs/ufs-common.yaml +++ b/Documentation/devicetree/bindings/ufs/ufs-common.yaml @@ -20,11 +20,25 @@ 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: + type: object interrupts: maxItems: 1 @@ -75,8 +89,23 @@ 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