From patchwork Sun Aug 27 11:50:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 717538 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 200DEC83F14 for ; Sun, 27 Aug 2023 11:51:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229876AbjH0LvM (ORCPT ); Sun, 27 Aug 2023 07:51:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52332 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229939AbjH0Lur (ORCPT ); Sun, 27 Aug 2023 07:50:47 -0400 Received: from mail-lf1-x134.google.com (mail-lf1-x134.google.com [IPv6:2a00:1450:4864:20::134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B62C6194 for ; Sun, 27 Aug 2023 04:50:40 -0700 (PDT) Received: by mail-lf1-x134.google.com with SMTP id 2adb3069b0e04-5007616b756so3684599e87.3 for ; Sun, 27 Aug 2023 04:50:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1693137039; x=1693741839; 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=RE7HOe0pcemwQjf6HadDywbH9N0H3cGYSXkFuYxT2Qk=; b=shSk0f0FHs/9hv48+jI6S+O+GL1A2N0XfyOsF0BKvw2XRUECnHATfhqyxlOGAILHTG TdXxwufhz4wW3drK9QQoccPaM6dt/b4s0H2kUaYGqjlViDg+kPJEN8XHd4JApbPlGHnN bKtWRRL9Hqb/udg2WEB05f0PAmh5o0+DDuW9NgS8hQgNA4t4fEXX3fkwsVlf8ubBkhOg r/L+a3Mr1LIQ+jZL02r/mnaK0q/7Lg/qvg+GxUeTsLmcFliHM267Uk9CgeCdtSrpKn1t q6RTc1uDKEkMBq7oALwzET/rDbDIyWWjAXzLlpWBFphdxLVxvvMei8WtIJjHECp/HZCE k0SA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693137039; x=1693741839; 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=RE7HOe0pcemwQjf6HadDywbH9N0H3cGYSXkFuYxT2Qk=; b=cs7UHhI9iOJNfrr3zu9dj8wv0RE2jw+9bYOIS8pv1DCulqz30msMjqsfSwqsE0RQyq E9lydWUaAZHY8LIH2+AL9WKsix68VF5aF8FDtVjBaExQbLPqLLuOQzXuCAdr6AWCSX6J 27/aQZDHL1tpKHV1iteDEvzyLSAJ9S2mo7XspltZj3g27RJ+OHaAy7TcApCs9kDzOuSS u9Nu+k4B7TTLN61wkqBgEyiE5Aam+fq1zyeGhKRmRDCpZfHSqRWZQEoJIzJY5+XoVG3p ge0ZgArKJuJETWEDWem6sYtciYvWpxYrZn/3WijXipBm/G2VyYVR7ry9wzOHcSgY4E2a qlvw== X-Gm-Message-State: AOJu0Yxk9cJZSeKdKOmsfZwmcSlq7TDHPrtDwPUp6pFYmHIiDfcNkArh pPp02Yrhpmq5qZN87juAOzIP2g== X-Google-Smtp-Source: AGHT+IEPJHYwp4cS/Ene382b2GGakTS+bBTqFA1XKuPxc0KSNbgoOKH7eGQQvy0xVSJaTV5xSgVjXQ== X-Received: by 2002:a19:7617:0:b0:4fd:fd97:a77b with SMTP id c23-20020a197617000000b004fdfd97a77bmr15120494lff.50.1693137038977; Sun, 27 Aug 2023 04:50:38 -0700 (PDT) Received: from umbar.unikie.fi ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id a8-20020a19f808000000b004ff9f88b86esm1114770lff.308.2023.08.27.04.50.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 27 Aug 2023 04:50:38 -0700 (PDT) From: Dmitry Baryshkov To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andy Gross , Bjorn Andersson , Konrad Dybcio , Ilia Lin , Viresh Kumar , Nishanth Menon , Stephen Boyd , Michael Turquette , "Rafael J. Wysocki" , Georgi Djakov Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, Christian Marangi , Stephan Gerhold Subject: [PATCH v4 05/23] interconnect: icc-clk: add support for scaling using OPP Date: Sun, 27 Aug 2023 14:50:15 +0300 Message-Id: <20230827115033.935089-6-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230827115033.935089-1-dmitry.baryshkov@linaro.org> References: <20230827115033.935089-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Sometimes it might be required to scale the clock using the OPP framework (e.g. to scale regulators following the required clock rate). Extend the interconnec-clk framework to handle OPP case in addition to scaling the clock. Reviewed-by: Konrad Dybcio Signed-off-by: Dmitry Baryshkov --- drivers/interconnect/icc-clk.c | 13 +++++++++++-- include/linux/interconnect-clk.h | 1 + 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/interconnect/icc-clk.c b/drivers/interconnect/icc-clk.c index d787f2ea36d9..45ffb068979d 100644 --- a/drivers/interconnect/icc-clk.c +++ b/drivers/interconnect/icc-clk.c @@ -7,10 +7,13 @@ #include #include #include +#include struct icc_clk_node { + struct device *dev; struct clk *clk; bool enabled; + bool opp; }; struct icc_clk_provider { @@ -25,12 +28,16 @@ struct icc_clk_provider { static int icc_clk_set(struct icc_node *src, struct icc_node *dst) { struct icc_clk_node *qn = src->data; + unsigned long rate = icc_units_to_bps(src->peak_bw); int ret; if (!qn || !qn->clk) return 0; - if (!src->peak_bw) { + if (qn->opp) + return dev_pm_opp_set_rate(qn->dev, rate); + + if (!rate) { if (qn->enabled) clk_disable_unprepare(qn->clk); qn->enabled = false; @@ -45,7 +52,7 @@ static int icc_clk_set(struct icc_node *src, struct icc_node *dst) qn->enabled = true; } - return clk_set_rate(qn->clk, icc_units_to_bps(src->peak_bw)); + return clk_set_rate(qn->clk, rate); } static int icc_clk_get_bw(struct icc_node *node, u32 *avg, u32 *peak) @@ -106,7 +113,9 @@ struct icc_provider *icc_clk_register(struct device *dev, icc_provider_init(provider); for (i = 0, j = 0; i < num_clocks; i++) { + qp->clocks[i].dev = dev; qp->clocks[i].clk = data[i].clk; + qp->clocks[i].opp = data[i].opp; node = icc_node_create(first_id + j); if (IS_ERR(node)) { diff --git a/include/linux/interconnect-clk.h b/include/linux/interconnect-clk.h index 0cd80112bea5..c695e5099901 100644 --- a/include/linux/interconnect-clk.h +++ b/include/linux/interconnect-clk.h @@ -11,6 +11,7 @@ struct device; struct icc_clk_data { struct clk *clk; const char *name; + bool opp; }; struct icc_provider *icc_clk_register(struct device *dev,