[PATCH v2] cpufreq-dt: make scaling_boost_freqs sysfs attr available when boost is enabled

* [PATCH v2] cpufreq-dt: make scaling_boost_freqs sysfs attr available when boost is enabled
@ 2015-08-07 11:56 ` Bartlomiej Zolnierkiewicz
  0 siblings, 0 replies; 4+ messages in thread
From: Bartlomiej Zolnierkiewicz @ 2015-08-07 11:56 UTC (permalink / raw)
  To: Rafael J. Wysocki
  Cc: Viresh Kumar, Thomas Abraham, Sylwester Nawrocki,
	Michael Turquette, Kukjin Kim, Kukjin Kim, Krzysztof Kozlowski,
	Tomasz Figa, Lukasz Majewski, Heiko Stuebner, Chanwoo Choi,
	Kevin Hilman, Javier Martinez Canillas, Tobias Jakobi,
	Anand Moon, linux-samsung-soc, linux-clk, linux-pm,
	linux-arm-kernel, linux-kernel, Javier Martinez Canillas

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

Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: Javier Martinez Canillas <javier@osg.samsung.com>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Suggested-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
v2: Removed leftover prototype.

 drivers/cpufreq/cpufreq-dt.c | 9 ++++++++-
 include/linux/cpufreq.h      | 1 +
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index b9259ab..c3583cd 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;
@@ -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)
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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