From patchwork Wed Jul 12 10:32:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 702469 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 966AAEB64D9 for ; Wed, 12 Jul 2023 10:34:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231696AbjGLKea (ORCPT ); Wed, 12 Jul 2023 06:34:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48408 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229843AbjGLKeZ (ORCPT ); Wed, 12 Jul 2023 06:34:25 -0400 Received: from mail-pf1-x434.google.com (mail-pf1-x434.google.com [IPv6:2607:f8b0:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 809B31BDC for ; Wed, 12 Jul 2023 03:34:17 -0700 (PDT) Received: by mail-pf1-x434.google.com with SMTP id d2e1a72fcca58-666ecb21f86so6141823b3a.3 for ; Wed, 12 Jul 2023 03:34:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1689158057; x=1691750057; 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=isqILRp2HC9Ls4OVrM79cWWkM+2AF8/YyITwGQzkfdXJw2wS0o+KcnwFKgqBvuxVHc gYvHjMAHw9JCmG50CSuwjv+Rq6MLi27bYXEAoqR2s3DEO9nphmtEogNIHYv4Xf/i3gGG FqRMK5p3XcWzFQ6CPXFWPAmOe3Kqrg7eEy/MJ+FMq/fUN6z8JY4YTdeNEaCytQyJ4DdY cgw1O+4mRHi7+JioR375dYmR166DXGrgZfu/E7ow84rYwxFBPdzXNiuXz3coYLhctzbm zhiIm2ddU3gvLe5a8MbpLA4TecSMAoLkjhysgEQTb79wDzPRhdF8dXgLye0AeXIqd33F vGxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689158057; x=1691750057; 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=Sixjpb3EkTUf+VjH9l0vKzuevA1aGeDuqjBilBWmdfqvw3NdNwW+AQYQ2oKc90df62 yUT1Yi0Zt/UbR59wLzYfSyqTN2AGzruKto79ZzHfx0ILbTsUuw10txdN2KPLCTpQBZgs k24KXAHcMYXF68oFChfBdcV831iwPx/kC4zrvqHqpoFRtnnzYM1HvBks0R739cSKuV61 vKVudp3k056Po0kwv25HUI+Wcc/O0olLaQYf3sVDIQPe3THiQzM9AEy3+zO8yd80LVUJ Ymg09QErj3DbiQgvZLlaX+Xm0HunkTarn1Zj6Hb2kHNyOLV6E9+RrsEGCUr/bfNv2Afs O+hQ== X-Gm-Message-State: ABy/qLZJ5rxDfKhKUVm0OVGBoEY2IHqggT6TMDFyQlFL1ha/6pwDfQpy XBRnBCravi3YZZWLWeTpVX+j X-Google-Smtp-Source: APBJJlFUWC255F6eLnf2C5UDQZ693UFhrIoIQkUc7luQxR8UfSsm7MLjxZeaNBUtDTEUU/rCVNd7Hw== X-Received: by 2002:a05:6a00:2307:b0:67e:18c6:d2c6 with SMTP id h7-20020a056a00230700b0067e18c6d2c6mr24028175pfh.5.1689158056990; Wed, 12 Jul 2023 03:34:16 -0700 (PDT) Received: from localhost.localdomain ([117.207.27.131]) by smtp.gmail.com with ESMTPSA id k15-20020aa790cf000000b00666b3706be6sm3247860pfk.107.2023.07.12.03.34.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Jul 2023 03:34:16 -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 Cc: linux-pm@vger.kernel.org, linux-kernel@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, Manivannan Sadhasivam Subject: [PATCH 08/14] OPP: Introduce dev_pm_opp_get_freq_indexed() API Date: Wed, 12 Jul 2023 16:02:03 +0530 Message-Id: <20230712103213.101770-9-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230712103213.101770-1-manivannan.sadhasivam@linaro.org> References: <20230712103213.101770-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@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;