From patchwork Tue Jul 5 07:00:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Viresh Kumar X-Patchwork-Id: 12905989 X-Patchwork-Delegate: viresh.linux@gmail.com 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 BD166C43334 for ; Tue, 5 Jul 2022 07:01:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230389AbiGEHBE (ORCPT ); Tue, 5 Jul 2022 03:01:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35192 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230349AbiGEHBC (ORCPT ); Tue, 5 Jul 2022 03:01:02 -0400 Received: from mail-pj1-x102b.google.com (mail-pj1-x102b.google.com [IPv6:2607:f8b0:4864:20::102b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 12E8C10FEE for ; Tue, 5 Jul 2022 00:01:01 -0700 (PDT) Received: by mail-pj1-x102b.google.com with SMTP id i8-20020a17090a4b8800b001ef8a65bfbdso4102073pjh.1 for ; Tue, 05 Jul 2022 00:01:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=vLm3xPD9OxbHjcm/3fn6+SA6JSr3RLuVTRqSmxurVMY=; b=gKr6TFO1o5rV/BJddvsaeHxIruLKA4Z2tP5sqRSoBNOYHrukCuOEPGVo7e0FTYEgcl JPs+oG85x6SFfg1vEvtXP/lQAQshrSfhiZOrw0EvjkPoldint3hsdATSOECt1ld+kral 1/fwMfJjCAslWGLERTlFONibnZ2X/aI+FyQheqN49D0SODJRUq9YvPe4bETtuDUx7lhn O+DgQG7qTltlnJSl6LpWP/hbMr85OFfSWtaXD2E472mS/yPchzfIXGR5RE6AgJums6Yp aZePjB4t17iRU707AGz931Cy7UL5f6O6XOmW21x0CWOznju7ZLKjwk5pBiGkT88ykqro SrPA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=vLm3xPD9OxbHjcm/3fn6+SA6JSr3RLuVTRqSmxurVMY=; b=YGbXa3/jYOlwbGp7qlFQiTGe88fD/kFiRDxDclIlgpy3o3il4G/EJodLl64/S402V1 idhYW/jmwJOKrjJR1FIKlmtOxCMcvBOiIPndsbyyCR3e+CgGt6bP+RpmgIW53gEfT7pe PqONVUDv+rCXChfKkZzwmomAnoNc7kGtOQqx8g0DZv1xvDM+9AE1tDXIjl9KYfLM/gMz utHTHtnvSA1tQ1As4RJA2x6dPKwsOmHChahryJoiZuWZMR4esMLhe/Ka2kT3IJ1m7fnV nWwunHVUOrj+28fxeSaBAfWCSP5nbKqLcay464R3CvtoVhoCWxeN2Sdd6HqnKPaPmmYr 5E/g== X-Gm-Message-State: AJIora8tfaTIcaXjrJXNsE2HnjCSgfWfeWna5pZwTTuIDxQV/rxy/ABr +39jwC3OG5rOZg1xam0s2a8tFw== X-Google-Smtp-Source: AGRyM1uxCpNI8nwgrEdlh7MZTqT7inkXpk5zwGEbVXLVh4hAaidUoOJ+LwVIrS0wKmYsGRPXdI//wQ== X-Received: by 2002:a17:903:1246:b0:16b:a568:4f74 with SMTP id u6-20020a170903124600b0016ba5684f74mr31761798plh.0.1657004460632; Tue, 05 Jul 2022 00:01:00 -0700 (PDT) Received: from localhost ([122.171.18.80]) by smtp.gmail.com with ESMTPSA id b8-20020a170902650800b0016bee668a62sm1513972plk.108.2022.07.05.00.00.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 Jul 2022 00:01:00 -0700 (PDT) From: Viresh Kumar To: Viresh Kumar , Nishanth Menon , Stephen Boyd , "Rafael J. Wysocki" Cc: Viresh Kumar , linux-pm@vger.kernel.org, Vincent Guittot , Krzysztof Kozlowski , Dmitry Osipenko , linux-kernel@vger.kernel.org Subject: [PATCH V2 10/13] OPP: Provide a simple implementation to configure multiple clocks Date: Tue, 5 Jul 2022 12:30:13 +0530 Message-Id: X-Mailer: git-send-email 2.31.1.272.g89b43f80a514 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org This provides a simple implementation to configure multiple clocks for a device. Tested-by: Dmitry Osipenko Signed-off-by: Viresh Kumar --- drivers/opp/core.c | 34 ++++++++++++++++++++++++++++++++++ include/linux/pm_opp.h | 10 ++++++++++ 2 files changed, 44 insertions(+) diff --git a/drivers/opp/core.c b/drivers/opp/core.c index 5b3542557f72..597f7df3e375 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -843,6 +843,40 @@ _opp_config_clk_single(struct device *dev, struct opp_table *opp_table, return ret; } +/* + * Simple implementation for configuring multiple clocks. Configure clocks in + * the order in which they are present in the array while scaling up. + */ +int dev_pm_opp_config_clks_simple(struct device *dev, + struct opp_table *opp_table, struct dev_pm_opp *opp, void *data, + bool scaling_down) +{ + int ret, i; + + if (scaling_down) { + for (i = opp_table->clk_count - 1; i >= 0; i--) { + ret = clk_set_rate(opp_table->clks[i], opp->rates[i]); + if (ret) { + dev_err(dev, "%s: failed to set clock rate: %d\n", __func__, + ret); + return ret; + } + } + } else { + for (i = 0; i < opp_table->clk_count; i++) { + ret = clk_set_rate(opp_table->clks[i], opp->rates[i]); + if (ret) { + dev_err(dev, "%s: failed to set clock rate: %d\n", __func__, + ret); + return ret; + } + } + } + + return ret; +} +EXPORT_SYMBOL_GPL(dev_pm_opp_config_clks_simple); + static int _opp_config_regulator_single(struct device *dev, struct dev_pm_opp *old_opp, struct dev_pm_opp *new_opp, struct regulator **regulators, unsigned int count) diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 104151dfe46c..683e6baf9618 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -159,6 +159,9 @@ int dev_pm_opp_unregister_notifier(struct device *dev, struct notifier_block *nb int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config); int devm_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config); void dev_pm_opp_clear_config(int token); +int dev_pm_opp_config_clks_simple(struct device *dev, + struct opp_table *opp_table, struct dev_pm_opp *opp, void *data, + bool scaling_down); struct dev_pm_opp *dev_pm_opp_xlate_required_opp(struct opp_table *src_table, struct opp_table *dst_table, struct dev_pm_opp *src_opp); int dev_pm_opp_xlate_performance_state(struct opp_table *src_table, struct opp_table *dst_table, unsigned int pstate); @@ -342,6 +345,13 @@ static inline int devm_pm_opp_set_config(struct device *dev, struct dev_pm_opp_c static inline void dev_pm_opp_clear_config(int token) {} +static inline int dev_pm_opp_config_clks_simple(struct device *dev, + struct opp_table *opp_table, struct dev_pm_opp *opp, void *data, + bool scaling_down) +{ + return -EOPNOTSUPP; +} + static inline struct dev_pm_opp *dev_pm_opp_xlate_required_opp(struct opp_table *src_table, struct opp_table *dst_table, struct dev_pm_opp *src_opp) {