From patchwork Tue Jan 19 17:45:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 367297 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1CDA9C4332B for ; Tue, 19 Jan 2021 21:27:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D1F372310B for ; Tue, 19 Jan 2021 21:27:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728331AbhASSo0 (ORCPT ); Tue, 19 Jan 2021 13:44:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40644 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392096AbhASRzv (ORCPT ); Tue, 19 Jan 2021 12:55:51 -0500 Received: from relay06.th.seeweb.it (relay06.th.seeweb.it [IPv6:2001:4b7a:2000:18::167]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 051E8C061798; Tue, 19 Jan 2021 09:48:47 -0800 (PST) Received: from IcarusMOD.eternityproject.eu (unknown [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by m-r2.th.seeweb.it (Postfix) with ESMTPSA id 8039E3F211; Tue, 19 Jan 2021 18:46:00 +0100 (CET) From: AngeloGioacchino Del Regno To: viresh.kumar@linaro.org Cc: bjorn.andersson@linaro.org, agross@kernel.org, rjw@rjwysocki.net, devicetree@vger.kernel.org, robh+dt@kernel.org, amit.kucheria@linaro.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org, konrad.dybcio@somainline.org, marijn.suijten@somainline.org, martin.botka@somainline.org, jeffrey.l.hugo@gmail.com, AngeloGioacchino Del Regno Subject: [PATCH v4 6/7] cpufreq: qcom-hw: Allow getting the maximum transition latency for OPPs Date: Tue, 19 Jan 2021 18:45:56 +0100 Message-Id: <20210119174557.227318-7-angelogioacchino.delregno@somainline.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210119174557.227318-1-angelogioacchino.delregno@somainline.org> References: <20210119174557.227318-1-angelogioacchino.delregno@somainline.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org In order to fine-tune the frequency scaling from various governors, allow to set a maximum transition latency from OPPs, which may be different depending on the SoC. Signed-off-by: AngeloGioacchino Del Regno Acked-by: Bjorn Andersson --- drivers/cpufreq/qcom-cpufreq-hw.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c index a92959bb7b50..5f67da796f6c 100644 --- a/drivers/cpufreq/qcom-cpufreq-hw.c +++ b/drivers/cpufreq/qcom-cpufreq-hw.c @@ -1401,6 +1401,7 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) void __iomem *base; struct qcom_cpufreq_data *data; const char *fdom_resname; + unsigned int transition_latency; int cpu_count, index, ret; cpu_dev = get_cpu_device(policy->cpu); @@ -1478,6 +1479,12 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) goto error; } + transition_latency = dev_pm_opp_get_max_transition_latency(cpu_dev); + if (!transition_latency) + transition_latency = CPUFREQ_ETERNAL; + + policy->cpuinfo.transition_latency = transition_latency; + dev_pm_opp_of_register_em(cpu_dev, policy->cpus); if (policy_has_boost_freq(policy)) {