From patchwork Thu Oct 12 05:45:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 13418361 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 40546CDB46E for ; Thu, 12 Oct 2023 05:45:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1377123AbjJLFpj (ORCPT ); Thu, 12 Oct 2023 01:45:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235289AbjJLFph (ORCPT ); Thu, 12 Oct 2023 01:45:37 -0400 Received: from mail-oo1-xc2b.google.com (mail-oo1-xc2b.google.com [IPv6:2607:f8b0:4864:20::c2b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AAC46B7 for ; Wed, 11 Oct 2023 22:45:34 -0700 (PDT) Received: by mail-oo1-xc2b.google.com with SMTP id 006d021491bc7-57bca5b9b0aso327998eaf.3 for ; Wed, 11 Oct 2023 22:45:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1697089534; x=1697694334; 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=cPOboPIuiGULl4ywyZ+vTEQcal+KjFCxEMwe15M2MbtNNriSed1lShRfcXNd79Goer vKpixXkX+1Dw1vvpzyX7zYh0c0fMTR4KTgXyXExgM+D528MdTxjF33+pERUVPYG81D+N CezrrKC0Rm6J/I5E/R9TADosnlXtou/t/157XBl+/l1wAdg4sM9UHR4a0WfLyJvbUzrc SIIe6GxvwQLxDnmBSk/PdPW99pQOth0EbxojzjucdinhR7u7oDMHZEKraKn0ArLNX2/b cV3bhIcKQNwHjLH6kLypQSx81wi1gPb2VWoeaLs8D1sGbuBzcjdK3b7u1d2HrmSd5V61 30EQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697089534; x=1697694334; 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=bMQwINw0VyJ5JiKcr629XTtg7nhHTBrtZ3xGXLLWMK5kQ/DA5benANs9ZWUzAqssJ0 +x3RkNJRe4rAo6/tTqu2qx7SpGQPQJnf90tRQBJVFS7bZOJ7iABoOgu9Bm50rYoS/xJE NK08vWSC4JTZnXSDiBtY0XjUiv49it0Lddn1K3SGhRMC6SJv+jlVsLu5BuEHSmOYEEty Q2nFcxmCVo2MlXAPsjXEL3jkFqFfA0QtYIjZkHIokOJhemyPzw18qWEM/f5J0J5Bxj48 2/aoGt8ozpdcw9zVvTQ5T1p4ShBaUONuiCnthl67c3sDUOVDU1YGgNjn0upJuPMqvXq2 IcJQ== X-Gm-Message-State: AOJu0YyflJvuSaUeCZz4jMn8WxaFbhhNBOMPxthkS4ffWl6ubZX9LDxm wYpF9sUuxHzZJBITvN6d96aO X-Google-Smtp-Source: AGHT+IEa4ITQ7yK7AB4m1jUONyc64PhUz5xW9XA5u9AoOeAABMbEGbk8OhiCUuiI4hpIBoDJrwXKCg== X-Received: by 2002:a05:6870:2c99:b0:1e9:a741:44f3 with SMTP id oh25-20020a0568702c9900b001e9a74144f3mr2647290oab.14.1697089534033; Wed, 11 Oct 2023 22:45:34 -0700 (PDT) Received: from localhost.localdomain ([120.138.12.180]) by smtp.gmail.com with ESMTPSA id c5-20020a633505000000b0057cb5a780ebsm812396pga.76.2023.10.11.22.45.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Oct 2023 22:45:33 -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 v6 1/5] dt-bindings: ufs: common: add OPP table Date: Thu, 12 Oct 2023 11:15:08 +0530 Message-Id: <20231012054512.10963-2-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231012054512.10963-1-manivannan.sadhasivam@linaro.org> References: <20231012054512.10963-1-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