From da60ce9f2faca87013fd3cab1c3bed5183608c3d Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:30 +0530 Subject: [PATCH] cpufreq: call cpufreq_driver->get() after calling ->init() Almost all drivers set policy->cur with current CPU frequency in their ->init() part. This can be done for all of them at core level and so they wouldn't need to do it. This patch adds supporting code in cpufreq core for calling get() after we have called init() for a policy. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index fc9110c9f10d..f033adf06eaf 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1042,6 +1042,14 @@ static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif, goto err_set_policy_cpu; } + if (cpufreq_driver->get) { + policy->cur = cpufreq_driver->get(policy->cpu); + if (!policy->cur) { + pr_err("%s: ->get() failed\n", __func__); + goto err_get_freq; + } + } + /* related cpus should atleast have policy->cpus */ cpumask_or(policy->related_cpus, policy->related_cpus, policy->cpus); @@ -1096,6 +1104,9 @@ err_out_unregister: per_cpu(cpufreq_cpu_data, j) = NULL; write_unlock_irqrestore(&cpufreq_driver_lock, flags); +err_get_freq: + if (cpufreq_driver->exit) + cpufreq_driver->exit(policy); err_set_policy_cpu: cpufreq_policy_free(policy); nomem_out: -- 2.20.1