[PATCH 7/7] cpufreq-dt: Use DT to set policy->cpus/related_cpus
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: 2015-02-11 08:16:30
Also in:
linux-arm-kernel, linux-pm
Subsystem:
cpu frequency scaling framework, the rest · Maintainers:
"Rafael J. Wysocki", Viresh Kumar, Linus Torvalds
This updates cpufreq-dt driver to read clock sharing information from new OPP bindings. And then initialize OPPs for CPUs with help of new bindings. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> --- drivers/cpufreq/cpufreq-dt.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index bab67db54b7e..6f307897e17a 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c@@ -208,8 +208,14 @@ static int cpufreq_init(struct cpufreq_policy *policy) goto out_put_reg_clk; } + pd = cpufreq_get_driver_data(); + if (!pd || !pd->independent_clocks) { + if (of_get_cpus_sharing_opps(cpu_dev, policy->cpus)) + cpumask_setall(policy->cpus); + } + /* OPPs might be populated at runtime, don't check for error here */ - of_init_opp_table(cpu_dev); + of_cpumask_init_opp_table(policy->cpus); /* * But we need OPP table to function so if it is not there let's
@@ -293,10 +299,6 @@ static int cpufreq_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = transition_latency; - pd = cpufreq_get_driver_data(); - if (!pd || !pd->independent_clocks) - cpumask_setall(policy->cpus); - of_node_put(np); return 0;
@@ -306,7 +308,7 @@ static int cpufreq_init(struct cpufreq_policy *policy) out_free_priv: kfree(priv); out_free_opp: - of_free_opp_table(cpu_dev); + of_cpumask_free_opp_table(policy->cpus); of_node_put(np); out_put_reg_clk: clk_put(cpu_clk);
@@ -322,7 +324,7 @@ static int cpufreq_exit(struct cpufreq_policy *policy) cpufreq_cooling_unregister(priv->cdev); dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &policy->freq_table); - of_free_opp_table(priv->cpu_dev); + of_cpumask_free_opp_table(policy->related_cpus); clk_put(policy->clk); if (!IS_ERR(priv->cpu_reg)) regulator_put(priv->cpu_reg);
--
2.3.0.rc0.44.ga94655d