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path: root/drivers/cpufreq/ppc-corenet-cpufreq.c
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Diffstat (limited to 'drivers/cpufreq/ppc-corenet-cpufreq.c')
-rw-r--r--drivers/cpufreq/ppc-corenet-cpufreq.c54
1 files changed, 7 insertions, 47 deletions
diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c
index 60e81d524ea..3f7be46d2b2 100644
--- a/drivers/cpufreq/ppc-corenet-cpufreq.c
+++ b/drivers/cpufreq/ppc-corenet-cpufreq.c
@@ -69,8 +69,6 @@ static const struct soc_data sdata[] = {
static u32 min_cpufreq;
static const u32 *fmask;
-/* serialize frequency changes */
-static DEFINE_MUTEX(cpufreq_lock);
static DEFINE_PER_CPU(struct cpu_data *, cpu_data);
/* cpumask in a cluster */
@@ -202,7 +200,7 @@ static int corenet_cpufreq_cpu_init(struct cpufreq_policy *policy)
table[i].frequency = CPUFREQ_TABLE_END;
/* set the min and max frequency properly */
- ret = cpufreq_frequency_table_cpuinfo(policy, table);
+ ret = cpufreq_table_validate_and_show(policy, table);
if (ret) {
pr_err("invalid frequency table: %d\n", ret);
goto err_nomem1;
@@ -217,9 +215,6 @@ static int corenet_cpufreq_cpu_init(struct cpufreq_policy *policy)
per_cpu(cpu_data, i) = data;
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
- policy->cur = corenet_cpufreq_get_speed(policy->cpu);
-
- cpufreq_frequency_table_get_attr(table, cpu);
of_node_put(np);
return 0;
@@ -253,60 +248,25 @@ static int __exit corenet_cpufreq_cpu_exit(struct cpufreq_policy *policy)
return 0;
}
-static int corenet_cpufreq_verify(struct cpufreq_policy *policy)
-{
- struct cpufreq_frequency_table *table =
- per_cpu(cpu_data, policy->cpu)->table;
-
- return cpufreq_frequency_table_verify(policy, table);
-}
-
static int corenet_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+ unsigned int index)
{
- struct cpufreq_freqs freqs;
- unsigned int new;
struct clk *parent;
- int ret;
struct cpu_data *data = per_cpu(cpu_data, policy->cpu);
- cpufreq_frequency_table_target(policy, data->table,
- target_freq, relation, &new);
-
- if (policy->cur == data->table[new].frequency)
- return 0;
-
- freqs.old = policy->cur;
- freqs.new = data->table[new].frequency;
-
- mutex_lock(&cpufreq_lock);
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
- parent = of_clk_get(data->parent, data->table[new].driver_data);
- ret = clk_set_parent(data->clk, parent);
- if (ret)
- freqs.new = freqs.old;
-
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
- mutex_unlock(&cpufreq_lock);
-
- return ret;
+ parent = of_clk_get(data->parent, data->table[index].driver_data);
+ return clk_set_parent(data->clk, parent);
}
-static struct freq_attr *corenet_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver ppc_corenet_cpufreq_driver = {
.name = "ppc_cpufreq",
.flags = CPUFREQ_CONST_LOOPS,
.init = corenet_cpufreq_cpu_init,
.exit = __exit_p(corenet_cpufreq_cpu_exit),
- .verify = corenet_cpufreq_verify,
- .target = corenet_cpufreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = corenet_cpufreq_target,
.get = corenet_cpufreq_get_speed,
- .attr = corenet_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
};
static const struct of_device_id node_matches[] __initdata = {