diff mbox series

[v1,5/7] cpufreq: qcom-hw: Register as a cpufreq cooling device

Message ID 3c7d0e4a8373e89d6922543ccf56749970de5567.1547078153.git.amit.kucheria@linaro.org
State New
Headers show
Series [v1,1/7] drivers: thermal: of-thermal: Print name of device node with error | expand

Commit Message

Amit Kucheria Jan. 10, 2019, midnight UTC
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>

---
 drivers/cpufreq/qcom-cpufreq-hw.c | 5 +++++
 1 file changed, 5 insertions(+)

-- 
2.17.1

Comments

Rafael J. Wysocki Jan. 10, 2019, 9:32 a.m. UTC | #1
On Thu, Jan 10, 2019 at 7:12 AM Viresh Kumar <viresh.kumar@linaro.org> wrote:
>

> On 10-01-19, 05:30, Amit Kucheria wrote:

> > Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>

> > ---

> >  drivers/cpufreq/qcom-cpufreq-hw.c | 5 +++++

> >  1 file changed, 5 insertions(+)

> >

> > diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c

> > index 649dddd72749..1c01311e5927 100644

> > --- a/drivers/cpufreq/qcom-cpufreq-hw.c

> > +++ b/drivers/cpufreq/qcom-cpufreq-hw.c

> > @@ -5,6 +5,7 @@

> >

> >  #include <linux/bitfield.h>

> >  #include <linux/cpufreq.h>

> > +#include <linux/cpu_cooling.h>

> >  #include <linux/init.h>

> >  #include <linux/kernel.h>

> >  #include <linux/module.h>

> > @@ -216,7 +217,10 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy)

> >  static int qcom_cpufreq_hw_cpu_exit(struct cpufreq_policy *policy)

> >  {

> >       void __iomem *base = policy->driver_data - REG_PERF_STATE;

> > +     struct thermal_cooling_device *cdev = policy->cooldev;

> >

> > +     if (cdev)

> > +             cpufreq_cooling_unregister(cdev);

> >       kfree(policy->freq_table);

> >       devm_iounmap(&global_pdev->dev, base);

> >

> > @@ -238,6 +242,7 @@ static struct cpufreq_driver cpufreq_qcom_hw_driver = {

> >       .init           = qcom_cpufreq_hw_cpu_init,

> >       .exit           = qcom_cpufreq_hw_cpu_exit,

> >       .fast_switch    = qcom_cpufreq_hw_fast_switch,

> > +     .ready          = generic_cpufreq_ready,

> >       .name           = "qcom-cpufreq-hw",

> >       .attr           = qcom_cpufreq_hw_attr,

> >  };

>

> I liked the idea of reducing code duplication, but not much the

> implementation. All we were able to get rid of was a call to

> of_cpufreq_cooling_register() and nothing else. Is it worth it ?

>

> Maybe we can add another flag in cpufreq.h:

>

> #define CPUFREQ_AUTO_REGISTER_COOLING_DEV (1 << 7)

>

> and let the core do it all automatically by itself, that will get rid

> of code duplication actually.

>

> @Rafael: What do you say ?


Getting rid of code duplication is good, let's do that.
diff mbox series

Patch

diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c
index 649dddd72749..1c01311e5927 100644
--- a/drivers/cpufreq/qcom-cpufreq-hw.c
+++ b/drivers/cpufreq/qcom-cpufreq-hw.c
@@ -5,6 +5,7 @@ 
 
 #include <linux/bitfield.h>
 #include <linux/cpufreq.h>
+#include <linux/cpu_cooling.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -216,7 +217,10 @@  static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy)
 static int qcom_cpufreq_hw_cpu_exit(struct cpufreq_policy *policy)
 {
 	void __iomem *base = policy->driver_data - REG_PERF_STATE;
+	struct thermal_cooling_device *cdev = policy->cooldev;
 
+	if (cdev)
+		cpufreq_cooling_unregister(cdev);
 	kfree(policy->freq_table);
 	devm_iounmap(&global_pdev->dev, base);
 
@@ -238,6 +242,7 @@  static struct cpufreq_driver cpufreq_qcom_hw_driver = {
 	.init		= qcom_cpufreq_hw_cpu_init,
 	.exit		= qcom_cpufreq_hw_cpu_exit,
 	.fast_switch    = qcom_cpufreq_hw_fast_switch,
+	.ready		= generic_cpufreq_ready,
 	.name		= "qcom-cpufreq-hw",
 	.attr		= qcom_cpufreq_hw_attr,
 };