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path: root/drivers/cpufreq/maple-cpufreq.c
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Diffstat (limited to 'drivers/cpufreq/maple-cpufreq.c')
-rw-r--r--drivers/cpufreq/maple-cpufreq.c56
1 files changed, 6 insertions, 50 deletions
diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c
index 6168d77b296d..c4dfa42a75ac 100644
--- a/drivers/cpufreq/maple-cpufreq.c
+++ b/drivers/cpufreq/maple-cpufreq.c
@@ -64,18 +64,11 @@ static struct cpufreq_frequency_table maple_cpu_freqs[] = {
{0, CPUFREQ_TABLE_END},
};
-static struct freq_attr *maple_cpu_freqs_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
/* Power mode data is an array of the 32 bits PCR values to use for
* the various frequencies, retrieved from the device-tree
*/
static int maple_pmode_cur;
-static DEFINE_MUTEX(maple_switch_mutex);
-
static const u32 *maple_pmode_data;
static int maple_pmode_max;
@@ -135,37 +128,10 @@ static int maple_scom_query_freq(void)
* Common interface to the cpufreq core
*/
-static int maple_cpufreq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, maple_cpu_freqs);
-}
-
static int maple_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+ unsigned int index)
{
- unsigned int newstate = 0;
- struct cpufreq_freqs freqs;
- int rc;
-
- if (cpufreq_frequency_table_target(policy, maple_cpu_freqs,
- target_freq, relation, &newstate))
- return -EINVAL;
-
- if (maple_pmode_cur == newstate)
- return 0;
-
- mutex_lock(&maple_switch_mutex);
-
- freqs.old = maple_cpu_freqs[maple_pmode_cur].frequency;
- freqs.new = maple_cpu_freqs[newstate].frequency;
-
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
- rc = maple_scom_switch_freq(newstate);
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
- mutex_unlock(&maple_switch_mutex);
-
- return rc;
+ return maple_scom_switch_freq(index);
}
static unsigned int maple_cpufreq_get_speed(unsigned int cpu)
@@ -175,27 +141,17 @@ static unsigned int maple_cpufreq_get_speed(unsigned int cpu)
static int maple_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
- policy->cpuinfo.transition_latency = 12000;
- policy->cur = maple_cpu_freqs[maple_scom_query_freq()].frequency;
- /* secondary CPUs are tied to the primary one by the
- * cpufreq core if in the secondary policy we tell it that
- * it actually must be one policy together with all others. */
- cpumask_setall(policy->cpus);
- cpufreq_frequency_table_get_attr(maple_cpu_freqs, policy->cpu);
-
- return cpufreq_frequency_table_cpuinfo(policy,
- maple_cpu_freqs);
+ return cpufreq_generic_init(policy, maple_cpu_freqs, 12000);
}
-
static struct cpufreq_driver maple_cpufreq_driver = {
.name = "maple",
.flags = CPUFREQ_CONST_LOOPS,
.init = maple_cpufreq_cpu_init,
- .verify = maple_cpufreq_verify,
- .target = maple_cpufreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = maple_cpufreq_target,
.get = maple_cpufreq_get_speed,
- .attr = maple_cpu_freqs_attr,
+ .attr = cpufreq_generic_attr,
};
static int __init maple_cpufreq_init(void)