Make scaling_boost_freqs sysfs attribute is available when
cpufreq-dt driver is used and boost support is enabled.
Cc: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
Cc: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
Cc: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
Suggested-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
---
Rafael, please apply for v4.3. Thanks!
drivers/cpufreq/cpufreq-dt.c | 11 ++++++++++-
include/linux/cpufreq.h | 1 +
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index b9259ab..c6a3b98 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -36,6 +36,12 @@ struct private_data {
unsigned int voltage_tolerance; /* in percentage */
};
+static struct freq_attr *cpufreq_dt_attr[] = {
+ &cpufreq_freq_attr_scaling_available_freqs,
+ NULL, /* Extra space for boost-attr if required */
+ NULL,
+};
+
static int set_target(struct cpufreq_policy *policy, unsigned int index)
{
struct dev_pm_opp *opp;
@@ -182,6 +188,8 @@ try_again:
return ret;
}
+static struct cpufreq_driver dt_cpufreq_driver;
+
static int cpufreq_init(struct cpufreq_policy *policy)
{
struct cpufreq_frequency_table *freq_table;
@@ -336,6 +344,7 @@ static int cpufreq_init(struct cpufreq_policy *policy)
ret = cpufreq_enable_boost_support();
if (ret)
goto out_free_cpufreq_table;
+ cpufreq_dt_attr[1] = &cpufreq_freq_attr_scaling_boost_freqs;
}
policy->cpuinfo.transition_latency = transition_latency;
@@ -411,7 +420,7 @@ static struct cpufreq_driver dt_cpufreq_driver = {
.exit = cpufreq_exit,
.ready = cpufreq_ready,
.name = "cpufreq-dt",
- .attr = cpufreq_generic_attr,
+ .attr = cpufreq_dt_attr,
};
static int dt_cpufreq_probe(struct platform_device *pdev)
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 95f0186..657542d 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -609,6 +609,7 @@ struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu);
/* the following are really really optional */
extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
+extern struct freq_attr cpufreq_freq_attr_scaling_boost_freqs;
extern struct freq_attr *cpufreq_generic_attr[];
int cpufreq_table_validate_and_show(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table);
--
1.9.1
--
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