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

PATCH Superseded Bartlomiej Zolnierkiewicz 1 participant 1 message Aug 7, 2015

Subsystems (3)

Common clk Arm Samsung Exynos CPU frequency scaling framework

lore

Share & tools

lore

Bartlomiej Zolnierkiewicz

author

2015-08-07 11:50 UTC #0 lore raw

PATCH 1/1 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.

Cc Thomas Abraham <[email protected]>

Cc Javier Martinez Canillas <[email protected]>

Cc Krzysztof Kozlowski <[email protected]>

Acked-by Viresh Kumar <[email protected]>

Signed-off-by Bartlomiej Zolnierkiewicz <[email protected]>

---
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(-)

drivers/cpufreq/cpufreq-dt.c +10 -1

index b9259ab..c6a3b98 100644
@@ -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)

include/linux/cpufreq.h +1 -0

index 95f0186..657542d 100644
@@ -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);

Signature · 1 line

1.9.1