cpufreq: Reuse cpufreq_driver_resolve_freq() in __cpufreq_driver_target()

__cpufreq_driver_target() open codes cpufreq_driver_resolve_freq(), lets
make the former reuse the later.

Separate out __resolve_freq() to accept relation as well as an argument
and use it at both the locations.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 5e4b531..8271ed1 100644 (file)
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -524,19 +524,8 @@ void cpufreq_disable_fast_switch(struct cpufreq_policy *policy)
 }
 EXPORT_SYMBOL_GPL(cpufreq_disable_fast_switch);
 
-/**
- * cpufreq_driver_resolve_freq - Map a target frequency to a driver-supported
- * one.
- * @policy: associated policy to interrogate
- * @target_freq: target frequency to resolve.
- *
- * The target to driver frequency mapping is cached in the policy.
- *
- * Return: Lowest driver-supported frequency greater than or equal to the
- * given target_freq, subject to policy (min/max) and driver limitations.
- */
-unsigned int cpufreq_driver_resolve_freq(struct cpufreq_policy *policy,
-                                        unsigned int target_freq)
+static unsigned int __resolve_freq(struct cpufreq_policy *policy,
+               unsigned int target_freq, unsigned int relation)
 {
        target_freq = clamp_val(target_freq, policy->min, policy->max);
        policy->cached_target_freq = target_freq;
@@ -545,7 +534,7 @@ unsigned int cpufreq_driver_resolve_freq(struct cpufreq_policy *policy,
                unsigned int idx;
 
                idx = cpufreq_frequency_table_target(policy, target_freq,
-                                                    CPUFREQ_RELATION_L);
+                                                    relation);
                policy->cached_resolved_idx = idx;
                return policy->freq_table[idx].frequency;
        }
@@ -555,6 +544,23 @@ unsigned int cpufreq_driver_resolve_freq(struct cpufreq_policy *policy,
 
        return target_freq;
 }
+
+/**
+ * cpufreq_driver_resolve_freq - Map a target frequency to a driver-supported
+ * one.
+ * @policy: associated policy to interrogate
+ * @target_freq: target frequency to resolve.
+ *
+ * The target to driver frequency mapping is cached in the policy.
+ *
+ * Return: Lowest driver-supported frequency greater than or equal to the
+ * given target_freq, subject to policy (min/max) and driver limitations.
+ */
+unsigned int cpufreq_driver_resolve_freq(struct cpufreq_policy *policy,
+                                        unsigned int target_freq)
+{
+       return __resolve_freq(policy, target_freq, CPUFREQ_RELATION_L);
+}
 EXPORT_SYMBOL_GPL(cpufreq_driver_resolve_freq);
 
 unsigned int cpufreq_policy_transition_delay_us(struct cpufreq_policy *policy)
@@ -2231,13 +2237,11 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
                            unsigned int relation)
 {
        unsigned int old_target_freq = target_freq;
-       int index;
 
        if (cpufreq_disabled())
                return -ENODEV;
 
-       /* Make sure that target_freq is within supported range */
-       target_freq = clamp_val(target_freq, policy->min, policy->max);
+       target_freq = __resolve_freq(policy, target_freq, relation);
 
        pr_debug("target for CPU %u: %u kHz, relation %u, requested %u kHz\n",
                 policy->cpu, target_freq, relation, old_target_freq);
@@ -2258,9 +2262,7 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
        if (!cpufreq_driver->target_index)
                return -EINVAL;
 
-       index = cpufreq_frequency_table_target(policy, target_freq, relation);
-
-       return __target_index(policy, index);
+       return __target_index(policy, policy->cached_resolved_idx);
 }
 EXPORT_SYMBOL_GPL(__cpufreq_driver_target);