Commit 329b064f authored by Daniel Lezcano's avatar Daniel Lezcano

thermal: core: Get thermal zone by id

The next patch will introduce the generic netlink protocol to handle
events, sampling and command from the thermal framework. In order to
deal with the thermal zone, it uses its unique identifier to
characterize it in the message. Passing an integer is more efficient
than passing an entire string.

This change provides a function returning back a thermal zone pointer
corresponding to the identifier passed as parameter.
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: default avatarAmit Kucheria <amit.kucheria@linaro.org>
Acked-by: default avatarZhang Rui <rui.zhang@intel.com>
Link: https://lore.kernel.org/r/20200706105538.2159-2-daniel.lezcano@linaro.org
parent 3d44a509
...@@ -732,6 +732,20 @@ int for_each_thermal_zone(int (*cb)(struct thermal_zone_device *, void *), ...@@ -732,6 +732,20 @@ int for_each_thermal_zone(int (*cb)(struct thermal_zone_device *, void *),
return ret; return ret;
} }
struct thermal_zone_device *thermal_zone_get_by_id(int id)
{
struct thermal_zone_device *tz = NULL;
mutex_lock(&thermal_list_lock);
list_for_each_entry(tz, &thermal_tz_list, node) {
if (tz->id == id)
break;
}
mutex_unlock(&thermal_list_lock);
return tz;
}
void thermal_zone_device_unbind_exception(struct thermal_zone_device *tz, void thermal_zone_device_unbind_exception(struct thermal_zone_device *tz,
const char *cdev_type, size_t size) const char *cdev_type, size_t size)
{ {
......
...@@ -50,6 +50,8 @@ int for_each_thermal_cooling_device(int (*cb)(struct thermal_cooling_device *, ...@@ -50,6 +50,8 @@ int for_each_thermal_cooling_device(int (*cb)(struct thermal_cooling_device *,
int for_each_thermal_governor(int (*cb)(struct thermal_governor *, void *), int for_each_thermal_governor(int (*cb)(struct thermal_governor *, void *),
void *thermal_governor); void *thermal_governor);
struct thermal_zone_device *thermal_zone_get_by_id(int id);
struct thermal_attr { struct thermal_attr {
struct device_attribute attr; struct device_attribute attr;
char name[THERMAL_NAME_LENGTH]; char name[THERMAL_NAME_LENGTH];
......
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