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cpufreq-dt: make scaling_boost_freqs sysfs attr available when boost is enabled 

Make scaling_boost_freqs sysfs attribute is available when
cpufreq-dt driver is used and boost support is enabled.

Suggested-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
hifive-unleashed-5.1
Bartlomiej Zolnierkiewicz 2015-08-07 13:59:16 +02:00 committed by Rafael J. Wysocki
parent d15fa86276
commit 21c36d3571
2 changed files with 9 additions and 1 deletions
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9
drivers/cpufreq/cpufreq-dt.c
View File

@ -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;
@ -336,6 +342,7 @@ 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 +418,7 @@ 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)

1
include/linux/cpufreq.h
View File

@ -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);