[v1,10/13] thermal: core: Allow trip pointers to be used for cooling device binding
Commit Message
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add new helper functions, thermal_bind_cdev_to_trip() and
thermal_unbind_cdev_from_trip(), to allow a trip pointer to be used for
binding a cooling device to a trip point and unbinding it, respectively,
and redefine the existing helpers, thermal_zone_bind_cooling_device()
and thermal_zone_unbind_cooling_device(), as wrappers around the new
ones, respectively.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/thermal/thermal_core.c | 54 +++++++++++++++++++++++++----------------
include/linux/thermal.h | 8 ++++++
2 files changed, 42 insertions(+), 20 deletions(-)
Comments
On 21/09/2023 20:01, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>
> Add new helper functions, thermal_bind_cdev_to_trip() and
> thermal_unbind_cdev_from_trip(), to allow a trip pointer to be used for
> binding a cooling device to a trip point and unbinding it, respectively,
> and redefine the existing helpers, thermal_zone_bind_cooling_device()
> and thermal_zone_unbind_cooling_device(), as wrappers around the new
> ones, respectively.
>
> No intentional functional impact.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> ---
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
On Thu, Sep 28, 2023 at 9:10 AM Daniel Lezcano
<daniel.lezcano@linaro.org> wrote:
>
> On 21/09/2023 20:01, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> >
> > Add new helper functions, thermal_bind_cdev_to_trip() and
> > thermal_unbind_cdev_from_trip(), to allow a trip pointer to be used for
> > binding a cooling device to a trip point and unbinding it, respectively,
> > and redefine the existing helpers, thermal_zone_bind_cooling_device()
> > and thermal_zone_unbind_cooling_device(), as wrappers around the new
> > ones, respectively.
> >
> > No intentional functional impact.
> >
> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> > ---
>
> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Thanks so much for all of the reviews!
I'll now apply the patches for which you have given tags and respin
the rest (governor changes) as a separate series on top of them.
On 28/09/2023 12:38, Rafael J. Wysocki wrote:
> On Thu, Sep 28, 2023 at 9:10 AM Daniel Lezcano
> <daniel.lezcano@linaro.org> wrote:
>>
>> On 21/09/2023 20:01, Rafael J. Wysocki wrote:
>>> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>>>
>>> Add new helper functions, thermal_bind_cdev_to_trip() and
>>> thermal_unbind_cdev_from_trip(), to allow a trip pointer to be used for
>>> binding a cooling device to a trip point and unbinding it, respectively,
>>> and redefine the existing helpers, thermal_zone_bind_cooling_device()
>>> and thermal_zone_unbind_cooling_device(), as wrappers around the new
>>> ones, respectively.
>>>
>>> No intentional functional impact.
>>>
>>> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>>> ---
>>
>> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
>
> Thanks so much for all of the reviews!
You are welcome. Thanks for cleaning up the ACPI code
> I'll now apply the patches for which you have given tags and respin
> the rest (governor changes) as a separate series on top of them.
Sounds good, thanks
===================================================================
@@ -600,10 +600,9 @@ struct thermal_zone_device *thermal_zone
*/
/**
- * thermal_zone_bind_cooling_device() - bind a cooling device to a thermal zone
+ * thermal_bind_cdev_to_trip - bind a cooling device to a thermal zone
* @tz: pointer to struct thermal_zone_device
- * @trip_index: indicates which trip point the cooling devices is
- * associated with in this thermal zone.
+ * @trip: trip point the cooling devices is associated with in this zone.
* @cdev: pointer to struct thermal_cooling_device
* @upper: the Maximum cooling state for this trip point.
* THERMAL_NO_LIMIT means no upper limit,
@@ -621,8 +620,8 @@ struct thermal_zone_device *thermal_zone
*
* Return: 0 on success, the proper error value otherwise.
*/
-int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
- int trip_index,
+int thermal_bind_cdev_to_trip(struct thermal_zone_device *tz,
+ const struct thermal_trip *trip,
struct thermal_cooling_device *cdev,
unsigned long upper, unsigned long lower,
unsigned int weight)
@@ -631,15 +630,9 @@ int thermal_zone_bind_cooling_device(str
struct thermal_instance *pos;
struct thermal_zone_device *pos1;
struct thermal_cooling_device *pos2;
- const struct thermal_trip *trip;
bool upper_no_limit;
int result;
- if (trip_index >= tz->num_trips || trip_index < 0)
- return -EINVAL;
-
- trip = &tz->trips[trip_index];
-
list_for_each_entry(pos1, &thermal_tz_list, node) {
if (pos1 == tz)
break;
@@ -736,14 +729,26 @@ free_mem:
kfree(dev);
return result;
}
+EXPORT_SYMBOL_GPL(thermal_bind_cdev_to_trip);
+
+int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
+ int trip_index,
+ struct thermal_cooling_device *cdev,
+ unsigned long upper, unsigned long lower,
+ unsigned int weight)
+{
+ if (trip_index < 0 || trip_index >= tz->num_trips)
+ return -EINVAL;
+
+ return thermal_bind_cdev_to_trip(tz, &tz->trips[trip_index], cdev,
+ upper, lower, weight);
+}
EXPORT_SYMBOL_GPL(thermal_zone_bind_cooling_device);
/**
- * thermal_zone_unbind_cooling_device() - unbind a cooling device from a
- * thermal zone.
+ * thermal_unbind_cdev_from_trip - unbind a cooling device from a thermal zone.
* @tz: pointer to a struct thermal_zone_device.
- * @trip_index: indicates which trip point the cooling devices is
- * associated with in this thermal zone.
+ * @trip: trip point the cooling devices is associated with in this zone.
* @cdev: pointer to a struct thermal_cooling_device.
*
* This interface function unbind a thermal cooling device from the certain
@@ -752,16 +757,14 @@ EXPORT_SYMBOL_GPL(thermal_zone_bind_cool
*
* Return: 0 on success, the proper error value otherwise.
*/
-int thermal_zone_unbind_cooling_device(struct thermal_zone_device *tz,
- int trip_index,
- struct thermal_cooling_device *cdev)
+int thermal_unbind_cdev_from_trip(struct thermal_zone_device *tz,
+ const struct thermal_trip *trip,
+ struct thermal_cooling_device *cdev)
{
struct thermal_instance *pos, *next;
- const struct thermal_trip *trip;
mutex_lock(&tz->lock);
mutex_lock(&cdev->lock);
- trip = &tz->trips[trip_index];
list_for_each_entry_safe(pos, next, &tz->thermal_instances, tz_node) {
if (pos->tz == tz && pos->trip == trip && pos->cdev == cdev) {
list_del(&pos->tz_node);
@@ -784,6 +787,17 @@ unbind:
kfree(pos);
return 0;
}
+EXPORT_SYMBOL_GPL(thermal_unbind_cdev_from_trip);
+
+int thermal_zone_unbind_cooling_device(struct thermal_zone_device *tz,
+ int trip_index,
+ struct thermal_cooling_device *cdev)
+{
+ if (trip_index < 0 || trip_index >= tz->num_trips)
+ return -EINVAL;
+
+ return thermal_unbind_cdev_from_trip(tz, &tz->trips[trip_index], cdev);
+}
EXPORT_SYMBOL_GPL(thermal_zone_unbind_cooling_device);
static void thermal_release(struct device *dev)
===================================================================
@@ -320,10 +320,18 @@ const char *thermal_zone_device_type(str
int thermal_zone_device_id(struct thermal_zone_device *tzd);
struct device *thermal_zone_device(struct thermal_zone_device *tzd);
+int thermal_bind_cdev_to_trip(struct thermal_zone_device *tz,
+ const struct thermal_trip *trip,
+ struct thermal_cooling_device *cdev,
+ unsigned long upper, unsigned long lower,
+ unsigned int weight);
int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int,
struct thermal_cooling_device *,
unsigned long, unsigned long,
unsigned int);
+int thermal_unbind_cdev_from_trip(struct thermal_zone_device *tz,
+ const struct thermal_trip *trip,
+ struct thermal_cooling_device *cdev);
int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int,
struct thermal_cooling_device *);
void thermal_zone_device_update(struct thermal_zone_device *,