diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 3d2adfac9578..e8098f695c84 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -637,6 +637,89 @@ static void thermal_zone_device_check(struct work_struct *work) thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); } +/** + * power_actor_get_max_power() - get the maximum power that a cdev can consume + * @cdev: pointer to &thermal_cooling_device + * @tz: a valid thermal zone device pointer + * @max_power: pointer in which to store the maximum power + * + * Calculate the maximum power consumption in milliwats that the + * cooling device can currently consume and store it in @max_power. + * + * Return: 0 on success, -EINVAL if @cdev doesn't support the + * power_actor API or -E* on other error. + */ +int power_actor_get_max_power(struct thermal_cooling_device *cdev, + struct thermal_zone_device *tz, u32 *max_power) +{ + if (!cdev_is_power_actor(cdev)) + return -EINVAL; + + return cdev->ops->state2power(cdev, tz, 0, max_power); +} + +/** + * power_actor_get_min_power() - get the mainimum power that a cdev can consume + * @cdev: pointer to &thermal_cooling_device + * @tz: a valid thermal zone device pointer + * @min_power: pointer in which to store the minimum power + * + * Calculate the minimum power consumption in milliwatts that the + * cooling device can currently consume and store it in @min_power. + * + * Return: 0 on success, -EINVAL if @cdev doesn't support the + * power_actor API or -E* on other error. + */ +int power_actor_get_min_power(struct thermal_cooling_device *cdev, + struct thermal_zone_device *tz, u32 *min_power) +{ + unsigned long max_state; + int ret; + + if (!cdev_is_power_actor(cdev)) + return -EINVAL; + + ret = cdev->ops->get_max_state(cdev, &max_state); + if (ret) + return ret; + + return cdev->ops->state2power(cdev, tz, max_state, min_power); +} + +/** + * power_actor_set_power() - limit the maximum power a cooling device consumes + * @cdev: pointer to &thermal_cooling_device + * @instance: thermal instance to update + * @power: the power in milliwatts + * + * Set the cooling device to consume at most @power milliwatts. The limit is + * expected to be a cap at the maximum power consumption. + * + * Return: 0 on success, -EINVAL if the cooling device does not + * implement the power actor API or -E* for other failures. + */ +int power_actor_set_power(struct thermal_cooling_device *cdev, + struct thermal_instance *instance, u32 power) +{ + unsigned long state; + int ret; + + if (!cdev_is_power_actor(cdev)) + return -EINVAL; + + ret = cdev->ops->power2state(cdev, instance->tz, power, &state); + if (ret) + return ret; + + instance->target = state; + mutex_lock(&cdev->lock); + cdev->updated = false; + mutex_unlock(&cdev->lock); + thermal_cdev_update(cdev); + + return 0; +} + /* sys I/F for thermal zone */ #define to_thermal_zone(_dev) \ @@ -1156,89 +1239,6 @@ static const struct attribute_group *thermal_zone_attribute_groups[] = { NULL }; -/** - * power_actor_get_max_power() - get the maximum power that a cdev can consume - * @cdev: pointer to &thermal_cooling_device - * @tz: a valid thermal zone device pointer - * @max_power: pointer in which to store the maximum power - * - * Calculate the maximum power consumption in milliwats that the - * cooling device can currently consume and store it in @max_power. - * - * Return: 0 on success, -EINVAL if @cdev doesn't support the - * power_actor API or -E* on other error. - */ -int power_actor_get_max_power(struct thermal_cooling_device *cdev, - struct thermal_zone_device *tz, u32 *max_power) -{ - if (!cdev_is_power_actor(cdev)) - return -EINVAL; - - return cdev->ops->state2power(cdev, tz, 0, max_power); -} - -/** - * power_actor_get_min_power() - get the mainimum power that a cdev can consume - * @cdev: pointer to &thermal_cooling_device - * @tz: a valid thermal zone device pointer - * @min_power: pointer in which to store the minimum power - * - * Calculate the minimum power consumption in milliwatts that the - * cooling device can currently consume and store it in @min_power. - * - * Return: 0 on success, -EINVAL if @cdev doesn't support the - * power_actor API or -E* on other error. - */ -int power_actor_get_min_power(struct thermal_cooling_device *cdev, - struct thermal_zone_device *tz, u32 *min_power) -{ - unsigned long max_state; - int ret; - - if (!cdev_is_power_actor(cdev)) - return -EINVAL; - - ret = cdev->ops->get_max_state(cdev, &max_state); - if (ret) - return ret; - - return cdev->ops->state2power(cdev, tz, max_state, min_power); -} - -/** - * power_actor_set_power() - limit the maximum power a cooling device consumes - * @cdev: pointer to &thermal_cooling_device - * @instance: thermal instance to update - * @power: the power in milliwatts - * - * Set the cooling device to consume at most @power milliwatts. The limit is - * expected to be a cap at the maximum power consumption. - * - * Return: 0 on success, -EINVAL if the cooling device does not - * implement the power actor API or -E* for other failures. - */ -int power_actor_set_power(struct thermal_cooling_device *cdev, - struct thermal_instance *instance, u32 power) -{ - unsigned long state; - int ret; - - if (!cdev_is_power_actor(cdev)) - return -EINVAL; - - ret = cdev->ops->power2state(cdev, instance->tz, power, &state); - if (ret) - return ret; - - instance->target = state; - mutex_lock(&cdev->lock); - cdev->updated = false; - mutex_unlock(&cdev->lock); - thermal_cdev_update(cdev); - - return 0; -} - /* sys I/F for cooling device */ #define to_cooling_device(_dev) \ container_of(_dev, struct thermal_cooling_device, device)