diff options
| author | Daniel Lezcano <daniel.lezcano@linaro.org> | 2020-04-29 12:36:42 +0200 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2020-05-19 12:58:07 +0200 |
| commit | fc7a3d9e9cd01e2679076c655f2bc4b04efbfa01 (patch) | |
| tree | 27e143e5adb56d3d97d3f80c5f5000b75a03f88b | |
| parent | dfd0bda3703cdaf1fccd5da72cb7101a4fedfe68 (diff) | |
thermal: cpuidle: Register cpuidle cooling device
The cpuidle driver can be used as a cooling device by injecting idle
cycles.
When the property is set, register the cpuidle driver with the idle
state node pointer as a cooling device. The thermal framework will do
the association automatically with the thermal zone via the
cooling-device defined in the device tree cooling-maps section.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20200429103644.5492-4-daniel.lezcano@linaro.org
| -rw-r--r-- | drivers/cpuidle/cpuidle-arm.c | 3 | ||||
| -rw-r--r-- | drivers/cpuidle/cpuidle-psci.c | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/cpuidle/cpuidle-arm.c b/drivers/cpuidle/cpuidle-arm.c index 9e5156d39627..8c758920d699 100644 --- a/drivers/cpuidle/cpuidle-arm.c +++ b/drivers/cpuidle/cpuidle-arm.c @@ -8,6 +8,7 @@ #define pr_fmt(fmt) "CPUidle arm: " fmt +#include <linux/cpu_cooling.h> #include <linux/cpuidle.h> #include <linux/cpumask.h> #include <linux/cpu_pm.h> @@ -124,6 +125,8 @@ static int __init arm_idle_init_cpu(int cpu) if (ret) goto out_kfree_drv; + cpuidle_cooling_register(drv); + return 0; out_kfree_drv: diff --git a/drivers/cpuidle/cpuidle-psci.c b/drivers/cpuidle/cpuidle-psci.c index bae9140a65a5..1f38e0dfc9b2 100644 --- a/drivers/cpuidle/cpuidle-psci.c +++ b/drivers/cpuidle/cpuidle-psci.c @@ -9,6 +9,7 @@ #define pr_fmt(fmt) "CPUidle PSCI: " fmt #include <linux/cpuhotplug.h> +#include <linux/cpu_cooling.h> #include <linux/cpuidle.h> #include <linux/cpumask.h> #include <linux/cpu_pm.h> @@ -313,6 +314,8 @@ static int __init psci_idle_init_cpu(int cpu) if (ret) goto out_kfree_drv; + cpuidle_cooling_register(drv); + return 0; out_kfree_drv: |