[v3] cpufreq-dt: make scaling_boost_freqs sysfs attr available when boost is enabled

Commit Message

Bartlomiej Zolnierkiewicz Aug. 7, 2015, 11:59 a.m. UTC

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

Cc: Thomas Abraham <[e-mail]>
Cc: Javier Martinez Canillas <[e-mail]>
Cc: Krzysztof Kozlowski <[e-mail]>
Suggested-by: Viresh Kumar <[e-mail]>
Acked-by: Viresh Kumar <[e-mail]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[e-mail]>
---
v2: Removed leftover prototype.
v3: added missing Acked-by
Sorry for two resends, this is not my day..
Rafael, please apply for v4.3.

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

Comments

Viresh Kumar Aug. 8, 2015, 2:09 a.m. UTC | #1

On 07-08-15, 13:59, Bartlomiej Zolnierkiewicz wrote:
> Make scaling_boost_freqs sysfs attribute is available when
> cpufreq-dt driver is used and boost support is enabled.
> 
> Cc: Thomas Abraham <[e-mail]>
> Cc: Javier Martinez Canillas <[e-mail]>
> Cc: Krzysztof Kozlowski <[e-mail]>
> Suggested-by: Viresh Kumar <[e-mail]>
> Acked-by: Viresh Kumar <[e-mail]>
> Signed-off-by: Bartlomiej Zolnierkiewicz <[e-mail]>
> ---
> v2: Removed leftover prototype.
> v3: added missing Acked-by
> Sorry for two resends, this is not my day..
> Rafael, please apply for v4.3.

Yeah, please apply only this patch from the series.

Patch

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);