From patchwork Thu Jul 20 05:40:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 13319785 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 7CA20EB64DA for ; Thu, 20 Jul 2023 05:43:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229975AbjGTFnk (ORCPT ); Thu, 20 Jul 2023 01:43:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45214 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229885AbjGTFnN (ORCPT ); Thu, 20 Jul 2023 01:43:13 -0400 Received: from mail-pl1-x633.google.com (mail-pl1-x633.google.com [IPv6:2607:f8b0:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 255762D58 for ; Wed, 19 Jul 2023 22:42:44 -0700 (PDT) Received: by mail-pl1-x633.google.com with SMTP id d9443c01a7336-1b8bbce9980so2176215ad.2 for ; Wed, 19 Jul 2023 22:42:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1689831751; x=1690436551; 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=JVAw7udukL38zwKtT4457ZqK6it2VdBXoqf1V9p3kc4=; b=rDv9lnxjRFZ0PZj9f9xOPG18lHjHObFlF6w/mOl7Yd1uLQLmbiZlIdMcolqKvoVdqF PkXrrCF85nkj7JfH1Qi48QZ5+08l0aZN91puXJ/F4RamZR+ol/43Rrp8JB3An1wlv9ic XCKqJegJO/I4zSGp4gz+pqGlvkj/y9ktuU90Bq146G5r9WsWH1wlg4cY1SYHotrImPmj 8gsPXgULIlJEBzIy0BeYK42NMRtE5VT1qgx+FcuhgUY1DtiDCqvY5eBA9zxpFIr08AOP g28VVO2eJoxOAZeF/P/fvc78hOGXCLrllFdLk4WFTeXGxkzNe6HJlA9uArJYMFZ6pY6n oMpg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689831751; x=1690436551; 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=JVAw7udukL38zwKtT4457ZqK6it2VdBXoqf1V9p3kc4=; b=cg12BlrVCFiChqXsU+kxWQobK/RMd0wbKxzW0bMg9QOFdtJU01pZ9+yRyK/U8DLt4P zS0inx6SNvO8Yc4T5P+hZSRjpUCd37UXSOgPDVlaq/24arowDfGcPa8CyRjE+oOGiozX nrIK4pKCM25VeHFlBG2EngKQKL+vxJMn4F5eofZRtGfBw2FVy7q2qCFOE7z+DmYyo2Wa ndp8X5NYCpJVt7G3ia4JEOHEuGDmrBDgTlhxspWjHjUcToEUB6ogdKIZRXEOep9rBWYp uP/Sx5+u+A77PPb1SFE/NVSWeLNxsKo8CDoErvEMavwrBzHuK7rSaJAD+bE+8uDzS1O9 ZNvQ== X-Gm-Message-State: ABy/qLYRGUObqvGGrQN7qn/CI/jB+Wj+kgGT6LM3oocZ9E2Y3tdU3m84 maK8jcuPi5z9fMxow2h6zJEq X-Google-Smtp-Source: APBJJlHYtomJPuze89iggnawG/+c5d7mLEXrNSEYPH+1X8ipd9FPklDq7JeVlbSa34RXP5oDshaKEg== X-Received: by 2002:a17:902:e752:b0:1b9:ce7a:8603 with SMTP id p18-20020a170902e75200b001b9ce7a8603mr4854532plf.66.1689831751480; Wed, 19 Jul 2023 22:42:31 -0700 (PDT) Received: from localhost.localdomain ([117.206.119.70]) by smtp.gmail.com with ESMTPSA id r2-20020a170902be0200b001b85bb5fd77sm263367pls.119.2023.07.19.22.42.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Jul 2023 22:42:31 -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, Manivannan Sadhasivam Subject: [PATCH v2 08/15] OPP: Introduce dev_pm_opp_get_freq_indexed() API Date: Thu, 20 Jul 2023 11:10:53 +0530 Message-Id: <20230720054100.9940-9-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230720054100.9940-1-manivannan.sadhasivam@linaro.org> References: <20230720054100.9940-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org In the case of devices with multiple clocks, drivers need to specify the frequency index for the OPP framework to get the specific frequency within the required OPP. So let's introduce the dev_pm_opp_get_freq_indexed() API accepting the frequency index as an argument. Signed-off-by: Manivannan Sadhasivam --- drivers/opp/core.c | 22 ++++++++++++++++++++++ include/linux/pm_opp.h | 8 ++++++++ 2 files changed, 30 insertions(+) diff --git a/drivers/opp/core.c b/drivers/opp/core.c index a6d0b6b18e0e..66dc0d0cfaed 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -197,6 +197,28 @@ unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp) } EXPORT_SYMBOL_GPL(dev_pm_opp_get_freq); +/** + * dev_pm_opp_get_freq_indexed() - Gets the frequency corresponding to an + * available opp with specified index + * @opp: opp for which frequency has to be returned for + * @index: index of the frequency within the required opp + * + * Return: frequency in hertz corresponding to the opp with specified index, + * else return 0 + */ +unsigned long dev_pm_opp_get_freq_indexed(struct dev_pm_opp *opp, u32 index) +{ + struct opp_table *opp_table = opp->opp_table; + + if (IS_ERR_OR_NULL(opp) || index >= opp_table->clk_count) { + pr_err("%s: Invalid parameters\n", __func__); + return 0; + } + + return opp->rates[index]; +} +EXPORT_SYMBOL_GPL(dev_pm_opp_get_freq_indexed); + /** * dev_pm_opp_get_level() - Gets the level corresponding to an available opp * @opp: opp for which level value has to be returned for diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 991f54da79b5..97eb6159fb93 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -105,6 +105,8 @@ unsigned long dev_pm_opp_get_power(struct dev_pm_opp *opp); unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp); +unsigned long dev_pm_opp_get_freq_indexed(struct dev_pm_opp *opp, u32 index); + unsigned int dev_pm_opp_get_level(struct dev_pm_opp *opp); unsigned int dev_pm_opp_get_required_pstate(struct dev_pm_opp *opp, @@ -211,6 +213,12 @@ static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp) return 0; } +static inline unsigned long dev_pm_opp_get_freq_indexed(struct dev_pm_opp *opp, + u32 index) +{ + return 0; +} + static inline unsigned int dev_pm_opp_get_level(struct dev_pm_opp *opp) { return 0;