From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 824A9C282D8 for ; Fri, 1 Feb 2019 09:32:19 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3D0F22086C for ; Fri, 1 Feb 2019 09:32:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="a70SyiIx" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3D0F22086C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=5xe78kBkYKKjM42yiVkzJxY4Uvlv7VM7uWKqvlow3rA=; b=a70SyiIxJTis5X r7RsgneNhXtLxt8XnsgufoVV3hILaExpYhFKxZNNLkciv4vBKJFnIiON3jnn44vN1gtcAz1rAFLTT /xzwEuV8Qw7jg3IKwR6j1/lRrfcpoKKqoURveK0dpsW6f0BSO2CYOTQjA82bCczDcyk4fkrP1QEUP nnXG4NZf64fq+UYbChkRvHWKW0KGApiFmdpH9/LqY4W0BSOOiNOrlG7ak2U3GQ1WETYuO2SWm/WRv BYvhJgd/+kRGPdZk2jPWIIZPsX5uqZUJRi1RDHgL7HUf9p3xCoMiZaifBLhbPRmwphQjg/aPluTdw MEqex+kIpG8KUqbGU2+A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gpVBF-0003je-IH; Fri, 01 Feb 2019 09:32:13 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gpVAL-0002lU-HK for linux-arm-kernel@lists.infradead.org; Fri, 01 Feb 2019 09:31:23 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0D12515BE; Fri, 1 Feb 2019 01:31:17 -0800 (PST) Received: from queper01-lin.cambridge.arm.com (queper01-lin.cambridge.arm.com [10.1.195.48]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 1CDC03F71E; Fri, 1 Feb 2019 01:31:14 -0800 (PST) From: Quentin Perret To: viresh.kumar@linaro.org, sudeep.holla@arm.com, rjw@rjwysocki.net, nm@ti.com, sboyd@kernel.org, mka@chromium.org Subject: [PATCH v3 4/5] cpufreq: arm_big_little: Register an Energy Model Date: Fri, 1 Feb 2019 09:31:00 +0000 Message-Id: <20190201093101.31869-5-quentin.perret@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190201093101.31869-1-quentin.perret@arm.com> References: <20190201093101.31869-1-quentin.perret@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190201_013118_013543_E87BAB99 X-CRM114-Status: GOOD ( 11.38 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: quentin.perret@arm.com, dietmar.eggemann@arm.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Dietmar Eggemann Now that PM_OPP provides a helper function to estimate the power consumed by CPUs, make sure to try and register an Energy Model (EM) from the arm_big_little CPUFreq driver, hence ensuring interested subsystems (the task scheduler, for example) can make use of that information when available. Signed-off-by: Dietmar Eggemann Signed-off-by: Quentin Perret --- drivers/cpufreq/arm_big_little.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index cf62a1f64dd7..18b05bcb2614 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -487,6 +487,14 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = arm_bL_ops->get_transition_latency(cpu_dev); + ret = dev_pm_opp_get_opp_count(cpu_dev); + if (ret <= 0) { + dev_dbg(cpu_dev, "OPP table is not ready, deferring probe\n"); + return -EPROBE_DEFER; + } + + dev_pm_opp_of_register_em(policy->cpus, ret); + if (is_bL_switching_enabled()) per_cpu(cpu_last_req_freq, policy->cpu) = clk_get_cpu_rate(policy->cpu); -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel