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path: root/drivers/cpufreq/scpi-cpufreq.c
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Diffstat (limited to 'drivers/cpufreq/scpi-cpufreq.c')
-rw-r--r--drivers/cpufreq/scpi-cpufreq.c47
1 files changed, 20 insertions, 27 deletions
diff --git a/drivers/cpufreq/scpi-cpufreq.c b/drivers/cpufreq/scpi-cpufreq.c
index de5e89b2eaaa..e8a7bf57b31b 100644
--- a/drivers/cpufreq/scpi-cpufreq.c
+++ b/drivers/cpufreq/scpi-cpufreq.c
@@ -18,6 +18,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/cpu.h>
#include <linux/cpufreq.h>
#include <linux/module.h>
#include <linux/platform_device.h>
@@ -38,10 +39,20 @@ static struct scpi_dvfs_info *scpi_get_dvfs_info(struct device *cpu_dev)
return scpi_ops->dvfs_get_info(domain);
}
-static int scpi_opp_table_ops(struct device *cpu_dev, bool remove)
+static int scpi_get_transition_latency(struct device *cpu_dev)
{
- int idx, ret = 0;
+ struct scpi_dvfs_info *info = scpi_get_dvfs_info(cpu_dev);
+
+ if (IS_ERR(info))
+ return PTR_ERR(info);
+ return info->latency;
+}
+
+static int scpi_init_opp_table(const struct cpumask *cpumask)
+{
+ int idx, ret;
struct scpi_opp *opp;
+ struct device *cpu_dev = get_cpu_device(cpumask_first(cpumask));
struct scpi_dvfs_info *info = scpi_get_dvfs_info(cpu_dev);
if (IS_ERR(info))
@@ -51,11 +62,7 @@ static int scpi_opp_table_ops(struct device *cpu_dev, bool remove)
return -EIO;
for (opp = info->opps, idx = 0; idx < info->count; idx++, opp++) {
- if (remove)
- dev_pm_opp_remove(cpu_dev, opp->freq);
- else
- ret = dev_pm_opp_add(cpu_dev, opp->freq,
- opp->m_volt * 1000);
+ ret = dev_pm_opp_add(cpu_dev, opp->freq, opp->m_volt * 1000);
if (ret) {
dev_warn(cpu_dev, "failed to add opp %uHz %umV\n",
opp->freq, opp->m_volt);
@@ -64,33 +71,19 @@ static int scpi_opp_table_ops(struct device *cpu_dev, bool remove)
return ret;
}
}
- return ret;
-}
-static int scpi_get_transition_latency(struct device *cpu_dev)
-{
- struct scpi_dvfs_info *info = scpi_get_dvfs_info(cpu_dev);
-
- if (IS_ERR(info))
- return PTR_ERR(info);
- return info->latency;
-}
-
-static int scpi_init_opp_table(struct device *cpu_dev)
-{
- return scpi_opp_table_ops(cpu_dev, false);
-}
-
-static void scpi_free_opp_table(struct device *cpu_dev)
-{
- scpi_opp_table_ops(cpu_dev, true);
+ ret = dev_pm_opp_set_sharing_cpus(cpu_dev, cpumask);
+ if (ret)
+ dev_err(cpu_dev, "%s: failed to mark OPPs as shared: %d\n",
+ __func__, ret);
+ return ret;
}
static struct cpufreq_arm_bL_ops scpi_cpufreq_ops = {
.name = "scpi",
.get_transition_latency = scpi_get_transition_latency,
.init_opp_table = scpi_init_opp_table,
- .free_opp_table = scpi_free_opp_table,
+ .free_opp_table = dev_pm_opp_cpumask_remove_table,
};
static int scpi_cpufreq_probe(struct platform_device *pdev)