From patchwork Thu Nov 5 12:55:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ionela Voinescu X-Patchwork-Id: 11884357 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 940011744 for ; Thu, 5 Nov 2020 12:56:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7CCF1206DB for ; Thu, 5 Nov 2020 12:56:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730676AbgKEM4u (ORCPT ); Thu, 5 Nov 2020 07:56:50 -0500 Received: from foss.arm.com ([217.140.110.172]:60024 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730784AbgKEM4t (ORCPT ); Thu, 5 Nov 2020 07:56:49 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6F2E914BF; Thu, 5 Nov 2020 04:56:48 -0800 (PST) Received: from e108754-lin.cambridge.arm.com (e108754-lin.cambridge.arm.com [10.1.198.32]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 3A8CA3F719; Thu, 5 Nov 2020 04:56:47 -0800 (PST) From: Ionela Voinescu To: rjw@rjwysocki.net, viresh.kumar@linaro.org, lenb@kernel.org, sudeep.holla@arm.com Cc: morten.rasmussen@arm.com, jeremy.linton@arm.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, ionela.voinescu@arm.com Subject: [PATCH 5/8] cppc_cpufreq: use policy->cpu as driver of frequency setting Date: Thu, 5 Nov 2020 12:55:21 +0000 Message-Id: <20201105125524.4409-6-ionela.voinescu@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201105125524.4409-1-ionela.voinescu@arm.com> References: <20201105125524.4409-1-ionela.voinescu@arm.com> Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Considering only the currently supported coordination types (ANY, HW, NONE), this change only makes a difference for the ANY type, when policy->cpu is hotplugged out. In that case the new policy->cpu will be different from ((struct cppc_cpudata *)policy->driver_data)->cpu. While in this case the controls of *ANY* CPU could be used to drive frequency changes, it's more consistent to use policy->cpu as the leading CPU, as used in all other cppc_cpufreq functions. Additionally, the debug prints in cppc_set_perf() would no longer create confusion when referring to a CPU that is hotplugged out. Signed-off-by: Ionela Voinescu Cc: Rafael J. Wysocki Cc: Viresh Kumar Acked-by: Viresh Kumar --- drivers/cpufreq/cppc_cpufreq.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c index ac95b4424a2e..fd2daeb59b49 100644 --- a/drivers/cpufreq/cppc_cpufreq.c +++ b/drivers/cpufreq/cppc_cpufreq.c @@ -150,6 +150,7 @@ static int cppc_cpufreq_set_target(struct cpufreq_policy *policy, { struct cppc_cpudata *cpu_data = policy->driver_data; + unsigned int cpu = policy->cpu; struct cpufreq_freqs freqs; u32 desired_perf; int ret = 0; @@ -164,12 +165,12 @@ static int cppc_cpufreq_set_target(struct cpufreq_policy *policy, freqs.new = target_freq; cpufreq_freq_transition_begin(policy, &freqs); - ret = cppc_set_perf(cpu_data->cpu, &cpu_data->perf_ctrls); + ret = cppc_set_perf(cpu, &cpu_data->perf_ctrls); cpufreq_freq_transition_end(policy, &freqs, ret != 0); if (ret) pr_debug("Failed to set target on CPU:%d. ret:%d\n", - cpu_data->cpu, ret); + cpu, ret); return ret; }