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[209.132.180.67]) by mx.google.com with ESMTP id dt16si7478pdb.366.2014.07.01.09.35.33; Tue, 01 Jul 2014 09:35:33 -0700 (PDT) Received-SPF: none (google.com: linux-kernel-owner@vger.kernel.org does not designate permitted sender hosts) client-ip=209.132.180.67; Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758573AbaGAQfV (ORCPT + 27 others); Tue, 1 Jul 2014 12:35:21 -0400 Received: from mail-pa0-f42.google.com ([209.85.220.42]:38825 "EHLO mail-pa0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758540AbaGAQfP (ORCPT ); Tue, 1 Jul 2014 12:35:15 -0400 Received: by mail-pa0-f42.google.com with SMTP id lj1so10948302pab.1 for ; Tue, 01 Jul 2014 09:35:14 -0700 (PDT) X-Received: by 10.66.132.3 with SMTP id oq3mr60842430pab.33.1404232514717; Tue, 01 Jul 2014 09:35:14 -0700 (PDT) Received: from localhost ([122.166.172.22]) by mx.google.com with ESMTPSA id i10sm118395867pat.36.2014.07.01.09.35.08 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Tue, 01 Jul 2014 09:35:14 -0700 (PDT) From: Viresh Kumar To: rjw@rjwysocki.net, shawn.guo@linaro.org Cc: linaro-kernel@lists.linaro.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, arvind.chauhan@arm.com, sboyd@codeaurora.org, linux-arm-msm@vger.kernel.org, spk.linux@gmail.com, thomas.ab@samsung.com, nm@ti.com, t.figa@samsung.com, Viresh Kumar Subject: [PATCH 11/14] cpufreq: cpu0: Make allocate_resources() work for any CPU Date: Tue, 1 Jul 2014 22:02:40 +0530 Message-Id: X-Mailer: git-send-email 2.0.0.rc2 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org Precedence: list List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: viresh.kumar@linaro.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.220.175 as permitted sender) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , Currently allocate_resources() supports only CPU0 and it would need to allocate resources for any CPU going forward. Add another argument to it, i.e. cpu, and update code accordingly. Signed-off-by: Viresh Kumar --- drivers/cpufreq/cpufreq-cpu0.c | 30 +++++++++++++++++------------- 1 file changed, 17 insertions(+), 13 deletions(-) diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index 17001a8..44633f6 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -106,7 +106,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index) return ret; } -static int allocate_resources(struct device **cdev, +static int allocate_resources(int cpu, struct device **cdev, struct regulator **creg, struct clk **cclk) { struct device *cpu_dev; @@ -115,24 +115,28 @@ static int allocate_resources(struct device **cdev, int ret = 0; char *reg_cpu0 = "cpu0", *reg_cpu = "cpu", *reg; - cpu_dev = get_cpu_device(0); + cpu_dev = get_cpu_device(cpu); if (!cpu_dev) { - pr_err("failed to get cpu0 device\n"); + pr_err("failed to get cpu%d device\n", cpu); return -ENODEV; } /* Try "cpu0" for older DTs */ - reg = reg_cpu0; + if (!cpu) + reg = reg_cpu0; + else + reg = reg_cpu; try_again: cpu_reg = regulator_get_optional(cpu_dev, reg); if (IS_ERR(cpu_reg)) { /* - * If cpu0 regulator supply node is present, but regulator is + * If cpu's regulator supply node is present, but regulator is * not yet registered, we should try defering probe. */ if (PTR_ERR(cpu_reg) == -EPROBE_DEFER) { - dev_err(cpu_dev, "cpu0 regulator not ready, retry\n"); + dev_err(cpu_dev, "cpu%d regulator not ready, retry\n", + cpu); return -EPROBE_DEFER; } @@ -142,8 +146,8 @@ try_again: goto try_again; } - dev_warn(cpu_dev, "failed to get cpu0 regulator: %ld\n", - PTR_ERR(cpu_reg)); + dev_warn(cpu_dev, "failed to get cpu%d regulator: %ld\n", + cpu, PTR_ERR(cpu_reg)); } cpu_clk = clk_get(cpu_dev, NULL); @@ -157,11 +161,12 @@ try_again: * registered, we should try defering probe. */ if (PTR_ERR(cpu_clk) == -EPROBE_DEFER) { - dev_err(cpu_dev, "cpu0 clock not ready, retry\n"); + dev_err(cpu_dev, "cpu%d clock not ready, retry\n", cpu); ret = -EPROBE_DEFER; } else { ret = PTR_ERR(cpu_clk); - dev_err(cpu_dev, "failed to get cpu0 clock: %d\n", ret); + dev_err(cpu_dev, "failed to get cpu%d clock: %d\n", ret, + cpu); } } else { *cdev = cpu_dev; @@ -184,8 +189,7 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy) unsigned int transition_latency; int ret; - /* We only support cpu0 currently */ - ret = allocate_resources(&cpu_dev, &cpu_reg, &cpu_clk); + ret = allocate_resources(policy->cpu, &cpu_dev, &cpu_reg, &cpu_clk); if (ret) { pr_err("%s: Failed to allocate resources\n: %d", __func__, ret); return ret; @@ -322,7 +326,7 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev) * * FIXME: Is checking this only for CPU0 sufficient ? */ - ret = allocate_resources(&cpu_dev, &cpu_reg, &cpu_clk); + ret = allocate_resources(0, &cpu_dev, &cpu_reg, &cpu_clk); if (ret) return ret;