cpufreq: vexpress: Set CPUFREQ_IS_COOLING_DEV flag

Reuse the cpufreq core's registration of cooling device by setting the
CPUFREQ_IS_COOLING_DEV flag. Set this only if bL switcher isn't enabled.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

diff --git a/drivers/cpufreq/vexpress-spc-cpufreq.c b/drivers/cpufreq/vexpress-spc-cpufreq.c
index 51dfa9a..ab56813 100644 (file)
--- a/drivers/cpufreq/vexpress-spc-cpufreq.c
+++ b/drivers/cpufreq/vexpress-spc-cpufreq.c
@@ -15,7 +15,6 @@
 #include <linux/cpu.h>
 #include <linux/cpufreq.h>
 #include <linux/cpumask.h>
-#include <linux/cpu_cooling.h>
 #include <linux/device.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
@@ -47,7 +46,6 @@ static bool bL_switching_enabled;
 #define ACTUAL_FREQ(cluster, freq)  ((cluster == A7_CLUSTER) ? freq << 1 : freq)
 #define VIRT_FREQ(cluster, freq)    ((cluster == A7_CLUSTER) ? freq >> 1 : freq)
 
-static struct thermal_cooling_device *cdev[MAX_CLUSTERS];
 static struct clk *clk[MAX_CLUSTERS];
 static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS + 1];
 static atomic_t cluster_usage[MAX_CLUSTERS + 1];
@@ -457,11 +455,6 @@ static int ve_spc_cpufreq_exit(struct cpufreq_policy *policy)
        struct device *cpu_dev;
        int cur_cluster = cpu_to_cluster(policy->cpu);
 
-       if (cur_cluster < MAX_CLUSTERS) {
-               cpufreq_cooling_unregister(cdev[cur_cluster]);
-               cdev[cur_cluster] = NULL;
-       }
-
        cpu_dev = get_cpu_device(policy->cpu);
        if (!cpu_dev) {
                pr_err("%s: failed to get cpu%d device\n", __func__,
@@ -473,17 +466,6 @@ static int ve_spc_cpufreq_exit(struct cpufreq_policy *policy)
        return 0;
 }
 
-static void ve_spc_cpufreq_ready(struct cpufreq_policy *policy)
-{
-       int cur_cluster = cpu_to_cluster(policy->cpu);
-
-       /* Do not register a cpu_cooling device if we are in IKS mode */
-       if (cur_cluster >= MAX_CLUSTERS)
-               return;
-
-       cdev[cur_cluster] = of_cpufreq_cooling_register(policy);
-}
-
 static struct cpufreq_driver ve_spc_cpufreq_driver = {
        .name                   = "vexpress-spc",
        .flags                  = CPUFREQ_HAVE_GOVERNOR_PER_POLICY |
@@ -493,7 +475,6 @@ static struct cpufreq_driver ve_spc_cpufreq_driver = {
        .get                    = ve_spc_cpufreq_get_rate,
        .init                   = ve_spc_cpufreq_init,
        .exit                   = ve_spc_cpufreq_exit,
-       .ready                  = ve_spc_cpufreq_ready,
        .attr                   = cpufreq_generic_attr,
 };
 
@@ -553,6 +534,9 @@ static int ve_spc_cpufreq_probe(struct platform_device *pdev)
        for (i = 0; i < MAX_CLUSTERS; i++)
                mutex_init(&cluster_lock[i]);
 
+       if (!is_bL_switching_enabled())
+               ve_spc_cpufreq_driver.flags |= CPUFREQ_IS_COOLING_DEV;
+
        ret = cpufreq_register_driver(&ve_spc_cpufreq_driver);
        if (ret) {
                pr_info("%s: Failed registering platform driver: %s, err: %d\n",