thermal/core: Remove thermal_bind_params structure
Commit Message
Remove struct thermal_bind_params because no one is using it for thermal
binding now.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
.../driver-api/thermal/sysfs-api.rst | 40 ------
drivers/thermal/thermal_core.c | 129 ++----------------
include/linux/thermal.h | 38 ------
3 files changed, 11 insertions(+), 196 deletions(-)
Comments
Hi Rui,
On 30/03/2023 12:45, Zhang Rui wrote:
> Remove struct thermal_bind_params because no one is using it for thermal
> binding now.
>
> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Thanks for the cleanup, always good to remove unused code.
Rafael, is it fine if I pick it ?
> ---
> .../driver-api/thermal/sysfs-api.rst | 40 ------
> drivers/thermal/thermal_core.c | 129 ++----------------
> include/linux/thermal.h | 38 ------
> 3 files changed, 11 insertions(+), 196 deletions(-)
>
> diff --git a/Documentation/driver-api/thermal/sysfs-api.rst b/Documentation/driver-api/thermal/sysfs-api.rst
> index 2e0f79a9e2ee..6c1175c6afba 100644
> --- a/Documentation/driver-api/thermal/sysfs-api.rst
> +++ b/Documentation/driver-api/thermal/sysfs-api.rst
> @@ -304,42 +304,6 @@ temperature) and throttle appropriate devices.
> 1.4 Thermal Zone Parameters
> ---------------------------
>
> - ::
> -
> - struct thermal_bind_params
> -
> - This structure defines the following parameters that are used to bind
> - a zone with a cooling device for a particular trip point.
> -
> - .cdev:
> - The cooling device pointer
> - .weight:
> - The 'influence' of a particular cooling device on this
> - zone. This is relative to the rest of the cooling
> - devices. For example, if all cooling devices have a
> - weight of 1, then they all contribute the same. You can
> - use percentages if you want, but it's not mandatory. A
> - weight of 0 means that this cooling device doesn't
> - contribute to the cooling of this zone unless all cooling
> - devices have a weight of 0. If all weights are 0, then
> - they all contribute the same.
> - .trip_mask:
> - This is a bit mask that gives the binding relation between
> - this thermal zone and cdev, for a particular trip point.
> - If nth bit is set, then the cdev and thermal zone are bound
> - for trip point n.
> - .binding_limits:
> - This is an array of cooling state limits. Must have
> - exactly 2 * thermal_zone.number_of_trip_points. It is an
> - array consisting of tuples <lower-state upper-state> of
> - state limits. Each trip will be associated with one state
> - limit tuple when binding. A NULL pointer means
> - <THERMAL_NO_LIMITS THERMAL_NO_LIMITS> on all trips.
> - These limits are used when binding a cdev to a trip point.
> - .match:
> - This call back returns success(0) if the 'tz and cdev' need to
> - be bound, as per platform data.
> -
> ::
>
> struct thermal_zone_params
> @@ -357,10 +321,6 @@ temperature) and throttle appropriate devices.
> will be created. when no_hwmon == true, nothing will be done.
> In case the thermal_zone_params is NULL, the hwmon interface
> will be created (for backward compatibility).
> - .num_tbps:
> - Number of thermal_bind_params entries for this zone
> - .tbp:
> - thermal_bind_params entries
>
> 2. sysfs attributes structure
> =============================
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index d51cacd66756..2e6a49dd527d 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -794,64 +794,18 @@ void print_bind_err_msg(struct thermal_zone_device *tz,
> tz->type, cdev->type, ret);
> }
>
> -static void __bind(struct thermal_zone_device *tz, int mask,
> - struct thermal_cooling_device *cdev,
> - unsigned long *limits,
> - unsigned int weight)
> -{
> - int i, ret;
> -
> - for (i = 0; i < tz->num_trips; i++) {
> - if (mask & (1 << i)) {
> - unsigned long upper, lower;
> -
> - upper = THERMAL_NO_LIMIT;
> - lower = THERMAL_NO_LIMIT;
> - if (limits) {
> - lower = limits[i * 2];
> - upper = limits[i * 2 + 1];
> - }
> - ret = thermal_zone_bind_cooling_device(tz, i, cdev,
> - upper, lower,
> - weight);
> - if (ret)
> - print_bind_err_msg(tz, cdev, ret);
> - }
> - }
> -}
> -
> static void bind_cdev(struct thermal_cooling_device *cdev)
> {
> - int i, ret;
> - const struct thermal_zone_params *tzp;
> + int ret;
> struct thermal_zone_device *pos = NULL;
>
> mutex_lock(&thermal_list_lock);
>
> list_for_each_entry(pos, &thermal_tz_list, node) {
> - if (!pos->tzp && !pos->ops->bind)
> - continue;
> -
> if (pos->ops->bind) {
> ret = pos->ops->bind(pos, cdev);
> if (ret)
> print_bind_err_msg(pos, cdev, ret);
> - continue;
> - }
> -
> - tzp = pos->tzp;
> - if (!tzp || !tzp->tbp)
> - continue;
> -
> - for (i = 0; i < tzp->num_tbps; i++) {
> - if (tzp->tbp[i].cdev || !tzp->tbp[i].match)
> - continue;
> - if (tzp->tbp[i].match(pos, cdev))
> - continue;
> - tzp->tbp[i].cdev = cdev;
> - __bind(pos, tzp->tbp[i].trip_mask, cdev,
> - tzp->tbp[i].binding_limits,
> - tzp->tbp[i].weight);
> }
> }
>
> @@ -1138,16 +1092,6 @@ void thermal_cooling_device_update(struct thermal_cooling_device *cdev)
> }
> EXPORT_SYMBOL_GPL(thermal_cooling_device_update);
>
> -static void __unbind(struct thermal_zone_device *tz, int mask,
> - struct thermal_cooling_device *cdev)
> -{
> - int i;
> -
> - for (i = 0; i < tz->num_trips; i++)
> - if (mask & (1 << i))
> - thermal_zone_unbind_cooling_device(tz, i, cdev);
> -}
> -
> /**
> * thermal_cooling_device_unregister - removes a thermal cooling device
> * @cdev: the thermal cooling device to remove.
> @@ -1157,8 +1101,6 @@ static void __unbind(struct thermal_zone_device *tz, int mask,
> */
> void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev)
> {
> - int i;
> - const struct thermal_zone_params *tzp;
> struct thermal_zone_device *tz;
>
> if (!cdev)
> @@ -1175,21 +1117,8 @@ void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev)
>
> /* Unbind all thermal zones associated with 'this' cdev */
> list_for_each_entry(tz, &thermal_tz_list, node) {
> - if (tz->ops->unbind) {
> + if (tz->ops->unbind)
> tz->ops->unbind(tz, cdev);
> - continue;
> - }
> -
> - if (!tz->tzp || !tz->tzp->tbp)
> - continue;
> -
> - tzp = tz->tzp;
> - for (i = 0; i < tzp->num_tbps; i++) {
> - if (tzp->tbp[i].cdev == cdev) {
> - __unbind(tz, tzp->tbp[i].trip_mask, cdev);
> - tzp->tbp[i].cdev = NULL;
> - }
> - }
> }
>
> mutex_unlock(&thermal_list_lock);
> @@ -1200,41 +1129,20 @@ EXPORT_SYMBOL_GPL(thermal_cooling_device_unregister);
>
> static void bind_tz(struct thermal_zone_device *tz)
> {
> - int i, ret;
> + int ret;
> struct thermal_cooling_device *pos = NULL;
> - const struct thermal_zone_params *tzp = tz->tzp;
>
> - if (!tzp && !tz->ops->bind)
> + if (!tz->ops->bind)
> return;
>
> mutex_lock(&thermal_list_lock);
>
> - /* If there is ops->bind, try to use ops->bind */
> - if (tz->ops->bind) {
> - list_for_each_entry(pos, &thermal_cdev_list, node) {
> - ret = tz->ops->bind(tz, pos);
> - if (ret)
> - print_bind_err_msg(tz, pos, ret);
> - }
> - goto exit;
> - }
> -
> - if (!tzp || !tzp->tbp)
> - goto exit;
> -
> list_for_each_entry(pos, &thermal_cdev_list, node) {
> - for (i = 0; i < tzp->num_tbps; i++) {
> - if (tzp->tbp[i].cdev || !tzp->tbp[i].match)
> - continue;
> - if (tzp->tbp[i].match(tz, pos))
> - continue;
> - tzp->tbp[i].cdev = pos;
> - __bind(tz, tzp->tbp[i].trip_mask, pos,
> - tzp->tbp[i].binding_limits,
> - tzp->tbp[i].weight);
> - }
> + ret = tz->ops->bind(tz, pos);
> + if (ret)
> + print_bind_err_msg(tz, pos, ret);
> }
> -exit:
> +
> mutex_unlock(&thermal_list_lock);
> }
>
> @@ -1491,15 +1399,13 @@ EXPORT_SYMBOL_GPL(thermal_zone_device_id);
> */
> void thermal_zone_device_unregister(struct thermal_zone_device *tz)
> {
> - int i, tz_id;
> - const struct thermal_zone_params *tzp;
> + int tz_id;
> struct thermal_cooling_device *cdev;
> struct thermal_zone_device *pos = NULL;
>
> if (!tz)
> return;
>
> - tzp = tz->tzp;
> tz_id = tz->id;
>
> mutex_lock(&thermal_list_lock);
> @@ -1514,22 +1420,9 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz)
> list_del(&tz->node);
>
> /* Unbind all cdevs associated with 'this' thermal zone */
> - list_for_each_entry(cdev, &thermal_cdev_list, node) {
> - if (tz->ops->unbind) {
> + list_for_each_entry(cdev, &thermal_cdev_list, node)
> + if (tz->ops->unbind)
> tz->ops->unbind(tz, cdev);
> - continue;
> - }
> -
> - if (!tzp || !tzp->tbp)
> - break;
> -
> - for (i = 0; i < tzp->num_tbps; i++) {
> - if (tzp->tbp[i].cdev == cdev) {
> - __unbind(tz, tzp->tbp[i].trip_mask, cdev);
> - tzp->tbp[i].cdev = NULL;
> - }
> - }
> - }
>
> mutex_unlock(&thermal_list_lock);
>
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index fef625f799ae..ab7460bfdcf6 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -207,41 +207,6 @@ struct thermal_governor {
> struct list_head governor_list;
> };
>
> -/* Structure that holds binding parameters for a zone */
> -struct thermal_bind_params {
> - struct thermal_cooling_device *cdev;
> -
> - /*
> - * This is a measure of 'how effectively these devices can
> - * cool 'this' thermal zone. It shall be determined by
> - * platform characterization. This value is relative to the
> - * rest of the weights so a cooling device whose weight is
> - * double that of another cooling device is twice as
> - * effective. See Documentation/driver-api/thermal/sysfs-api.rst for more
> - * information.
> - */
> - int weight;
> -
> - /*
> - * This is a bit mask that gives the binding relation between this
> - * thermal zone and cdev, for a particular trip point.
> - * See Documentation/driver-api/thermal/sysfs-api.rst for more information.
> - */
> - int trip_mask;
> -
> - /*
> - * This is an array of cooling state limits. Must have exactly
> - * 2 * thermal_zone.number_of_trip_points. It is an array consisting
> - * of tuples <lower-state upper-state> of state limits. Each trip
> - * will be associated with one state limit tuple when binding.
> - * A NULL pointer means <THERMAL_NO_LIMITS THERMAL_NO_LIMITS>
> - * on all trips.
> - */
> - unsigned long *binding_limits;
> - int (*match) (struct thermal_zone_device *tz,
> - struct thermal_cooling_device *cdev);
> -};
> -
> /* Structure to define Thermal Zone parameters */
> struct thermal_zone_params {
> char governor_name[THERMAL_NAME_LENGTH];
> @@ -253,9 +218,6 @@ struct thermal_zone_params {
> */
> bool no_hwmon;
>
> - int num_tbps; /* Number of tbp entries */
> - struct thermal_bind_params *tbp;
> -
> /*
> * Sustainable power (heat) that this thermal zone can dissipate in
> * mW
On Fri, Mar 31, 2023 at 10:49 AM Daniel Lezcano
<daniel.lezcano@linaro.org> wrote:
>
>
> Hi Rui,
>
>
> On 30/03/2023 12:45, Zhang Rui wrote:
> > Remove struct thermal_bind_params because no one is using it for thermal
> > binding now.
> >
> > Signed-off-by: Zhang Rui <rui.zhang@intel.com>
>
> Thanks for the cleanup, always good to remove unused code.
>
> Rafael, is it fine if I pick it ?
Sure, no problem.
>
> > ---
> > .../driver-api/thermal/sysfs-api.rst | 40 ------
> > drivers/thermal/thermal_core.c | 129 ++----------------
> > include/linux/thermal.h | 38 ------
> > 3 files changed, 11 insertions(+), 196 deletions(-)
> >
> > diff --git a/Documentation/driver-api/thermal/sysfs-api.rst b/Documentation/driver-api/thermal/sysfs-api.rst
> > index 2e0f79a9e2ee..6c1175c6afba 100644
> > --- a/Documentation/driver-api/thermal/sysfs-api.rst
> > +++ b/Documentation/driver-api/thermal/sysfs-api.rst
> > @@ -304,42 +304,6 @@ temperature) and throttle appropriate devices.
> > 1.4 Thermal Zone Parameters
> > ---------------------------
> >
> > - ::
> > -
> > - struct thermal_bind_params
> > -
> > - This structure defines the following parameters that are used to bind
> > - a zone with a cooling device for a particular trip point.
> > -
> > - .cdev:
> > - The cooling device pointer
> > - .weight:
> > - The 'influence' of a particular cooling device on this
> > - zone. This is relative to the rest of the cooling
> > - devices. For example, if all cooling devices have a
> > - weight of 1, then they all contribute the same. You can
> > - use percentages if you want, but it's not mandatory. A
> > - weight of 0 means that this cooling device doesn't
> > - contribute to the cooling of this zone unless all cooling
> > - devices have a weight of 0. If all weights are 0, then
> > - they all contribute the same.
> > - .trip_mask:
> > - This is a bit mask that gives the binding relation between
> > - this thermal zone and cdev, for a particular trip point.
> > - If nth bit is set, then the cdev and thermal zone are bound
> > - for trip point n.
> > - .binding_limits:
> > - This is an array of cooling state limits. Must have
> > - exactly 2 * thermal_zone.number_of_trip_points. It is an
> > - array consisting of tuples <lower-state upper-state> of
> > - state limits. Each trip will be associated with one state
> > - limit tuple when binding. A NULL pointer means
> > - <THERMAL_NO_LIMITS THERMAL_NO_LIMITS> on all trips.
> > - These limits are used when binding a cdev to a trip point.
> > - .match:
> > - This call back returns success(0) if the 'tz and cdev' need to
> > - be bound, as per platform data.
> > -
> > ::
> >
> > struct thermal_zone_params
> > @@ -357,10 +321,6 @@ temperature) and throttle appropriate devices.
> > will be created. when no_hwmon == true, nothing will be done.
> > In case the thermal_zone_params is NULL, the hwmon interface
> > will be created (for backward compatibility).
> > - .num_tbps:
> > - Number of thermal_bind_params entries for this zone
> > - .tbp:
> > - thermal_bind_params entries
> >
> > 2. sysfs attributes structure
> > =============================
> > diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> > index d51cacd66756..2e6a49dd527d 100644
> > --- a/drivers/thermal/thermal_core.c
> > +++ b/drivers/thermal/thermal_core.c
> > @@ -794,64 +794,18 @@ void print_bind_err_msg(struct thermal_zone_device *tz,
> > tz->type, cdev->type, ret);
> > }
> >
> > -static void __bind(struct thermal_zone_device *tz, int mask,
> > - struct thermal_cooling_device *cdev,
> > - unsigned long *limits,
> > - unsigned int weight)
> > -{
> > - int i, ret;
> > -
> > - for (i = 0; i < tz->num_trips; i++) {
> > - if (mask & (1 << i)) {
> > - unsigned long upper, lower;
> > -
> > - upper = THERMAL_NO_LIMIT;
> > - lower = THERMAL_NO_LIMIT;
> > - if (limits) {
> > - lower = limits[i * 2];
> > - upper = limits[i * 2 + 1];
> > - }
> > - ret = thermal_zone_bind_cooling_device(tz, i, cdev,
> > - upper, lower,
> > - weight);
> > - if (ret)
> > - print_bind_err_msg(tz, cdev, ret);
> > - }
> > - }
> > -}
> > -
> > static void bind_cdev(struct thermal_cooling_device *cdev)
> > {
> > - int i, ret;
> > - const struct thermal_zone_params *tzp;
> > + int ret;
> > struct thermal_zone_device *pos = NULL;
> >
> > mutex_lock(&thermal_list_lock);
> >
> > list_for_each_entry(pos, &thermal_tz_list, node) {
> > - if (!pos->tzp && !pos->ops->bind)
> > - continue;
> > -
> > if (pos->ops->bind) {
> > ret = pos->ops->bind(pos, cdev);
> > if (ret)
> > print_bind_err_msg(pos, cdev, ret);
> > - continue;
> > - }
> > -
> > - tzp = pos->tzp;
> > - if (!tzp || !tzp->tbp)
> > - continue;
> > -
> > - for (i = 0; i < tzp->num_tbps; i++) {
> > - if (tzp->tbp[i].cdev || !tzp->tbp[i].match)
> > - continue;
> > - if (tzp->tbp[i].match(pos, cdev))
> > - continue;
> > - tzp->tbp[i].cdev = cdev;
> > - __bind(pos, tzp->tbp[i].trip_mask, cdev,
> > - tzp->tbp[i].binding_limits,
> > - tzp->tbp[i].weight);
> > }
> > }
> >
> > @@ -1138,16 +1092,6 @@ void thermal_cooling_device_update(struct thermal_cooling_device *cdev)
> > }
> > EXPORT_SYMBOL_GPL(thermal_cooling_device_update);
> >
> > -static void __unbind(struct thermal_zone_device *tz, int mask,
> > - struct thermal_cooling_device *cdev)
> > -{
> > - int i;
> > -
> > - for (i = 0; i < tz->num_trips; i++)
> > - if (mask & (1 << i))
> > - thermal_zone_unbind_cooling_device(tz, i, cdev);
> > -}
> > -
> > /**
> > * thermal_cooling_device_unregister - removes a thermal cooling device
> > * @cdev: the thermal cooling device to remove.
> > @@ -1157,8 +1101,6 @@ static void __unbind(struct thermal_zone_device *tz, int mask,
> > */
> > void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev)
> > {
> > - int i;
> > - const struct thermal_zone_params *tzp;
> > struct thermal_zone_device *tz;
> >
> > if (!cdev)
> > @@ -1175,21 +1117,8 @@ void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev)
> >
> > /* Unbind all thermal zones associated with 'this' cdev */
> > list_for_each_entry(tz, &thermal_tz_list, node) {
> > - if (tz->ops->unbind) {
> > + if (tz->ops->unbind)
> > tz->ops->unbind(tz, cdev);
> > - continue;
> > - }
> > -
> > - if (!tz->tzp || !tz->tzp->tbp)
> > - continue;
> > -
> > - tzp = tz->tzp;
> > - for (i = 0; i < tzp->num_tbps; i++) {
> > - if (tzp->tbp[i].cdev == cdev) {
> > - __unbind(tz, tzp->tbp[i].trip_mask, cdev);
> > - tzp->tbp[i].cdev = NULL;
> > - }
> > - }
> > }
> >
> > mutex_unlock(&thermal_list_lock);
> > @@ -1200,41 +1129,20 @@ EXPORT_SYMBOL_GPL(thermal_cooling_device_unregister);
> >
> > static void bind_tz(struct thermal_zone_device *tz)
> > {
> > - int i, ret;
> > + int ret;
> > struct thermal_cooling_device *pos = NULL;
> > - const struct thermal_zone_params *tzp = tz->tzp;
> >
> > - if (!tzp && !tz->ops->bind)
> > + if (!tz->ops->bind)
> > return;
> >
> > mutex_lock(&thermal_list_lock);
> >
> > - /* If there is ops->bind, try to use ops->bind */
> > - if (tz->ops->bind) {
> > - list_for_each_entry(pos, &thermal_cdev_list, node) {
> > - ret = tz->ops->bind(tz, pos);
> > - if (ret)
> > - print_bind_err_msg(tz, pos, ret);
> > - }
> > - goto exit;
> > - }
> > -
> > - if (!tzp || !tzp->tbp)
> > - goto exit;
> > -
> > list_for_each_entry(pos, &thermal_cdev_list, node) {
> > - for (i = 0; i < tzp->num_tbps; i++) {
> > - if (tzp->tbp[i].cdev || !tzp->tbp[i].match)
> > - continue;
> > - if (tzp->tbp[i].match(tz, pos))
> > - continue;
> > - tzp->tbp[i].cdev = pos;
> > - __bind(tz, tzp->tbp[i].trip_mask, pos,
> > - tzp->tbp[i].binding_limits,
> > - tzp->tbp[i].weight);
> > - }
> > + ret = tz->ops->bind(tz, pos);
> > + if (ret)
> > + print_bind_err_msg(tz, pos, ret);
> > }
> > -exit:
> > +
> > mutex_unlock(&thermal_list_lock);
> > }
> >
> > @@ -1491,15 +1399,13 @@ EXPORT_SYMBOL_GPL(thermal_zone_device_id);
> > */
> > void thermal_zone_device_unregister(struct thermal_zone_device *tz)
> > {
> > - int i, tz_id;
> > - const struct thermal_zone_params *tzp;
> > + int tz_id;
> > struct thermal_cooling_device *cdev;
> > struct thermal_zone_device *pos = NULL;
> >
> > if (!tz)
> > return;
> >
> > - tzp = tz->tzp;
> > tz_id = tz->id;
> >
> > mutex_lock(&thermal_list_lock);
> > @@ -1514,22 +1420,9 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz)
> > list_del(&tz->node);
> >
> > /* Unbind all cdevs associated with 'this' thermal zone */
> > - list_for_each_entry(cdev, &thermal_cdev_list, node) {
> > - if (tz->ops->unbind) {
> > + list_for_each_entry(cdev, &thermal_cdev_list, node)
> > + if (tz->ops->unbind)
> > tz->ops->unbind(tz, cdev);
> > - continue;
> > - }
> > -
> > - if (!tzp || !tzp->tbp)
> > - break;
> > -
> > - for (i = 0; i < tzp->num_tbps; i++) {
> > - if (tzp->tbp[i].cdev == cdev) {
> > - __unbind(tz, tzp->tbp[i].trip_mask, cdev);
> > - tzp->tbp[i].cdev = NULL;
> > - }
> > - }
> > - }
> >
> > mutex_unlock(&thermal_list_lock);
> >
> > diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> > index fef625f799ae..ab7460bfdcf6 100644
> > --- a/include/linux/thermal.h
> > +++ b/include/linux/thermal.h
> > @@ -207,41 +207,6 @@ struct thermal_governor {
> > struct list_head governor_list;
> > };
> >
> > -/* Structure that holds binding parameters for a zone */
> > -struct thermal_bind_params {
> > - struct thermal_cooling_device *cdev;
> > -
> > - /*
> > - * This is a measure of 'how effectively these devices can
> > - * cool 'this' thermal zone. It shall be determined by
> > - * platform characterization. This value is relative to the
> > - * rest of the weights so a cooling device whose weight is
> > - * double that of another cooling device is twice as
> > - * effective. See Documentation/driver-api/thermal/sysfs-api.rst for more
> > - * information.
> > - */
> > - int weight;
> > -
> > - /*
> > - * This is a bit mask that gives the binding relation between this
> > - * thermal zone and cdev, for a particular trip point.
> > - * See Documentation/driver-api/thermal/sysfs-api.rst for more information.
> > - */
> > - int trip_mask;
> > -
> > - /*
> > - * This is an array of cooling state limits. Must have exactly
> > - * 2 * thermal_zone.number_of_trip_points. It is an array consisting
> > - * of tuples <lower-state upper-state> of state limits. Each trip
> > - * will be associated with one state limit tuple when binding.
> > - * A NULL pointer means <THERMAL_NO_LIMITS THERMAL_NO_LIMITS>
> > - * on all trips.
> > - */
> > - unsigned long *binding_limits;
> > - int (*match) (struct thermal_zone_device *tz,
> > - struct thermal_cooling_device *cdev);
> > -};
> > -
> > /* Structure to define Thermal Zone parameters */
> > struct thermal_zone_params {
> > char governor_name[THERMAL_NAME_LENGTH];
> > @@ -253,9 +218,6 @@ struct thermal_zone_params {
> > */
> > bool no_hwmon;
> >
> > - int num_tbps; /* Number of tbp entries */
> > - struct thermal_bind_params *tbp;
> > -
> > /*
> > * Sustainable power (heat) that this thermal zone can dissipate in
> > * mW
>
> --
> <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs
>
> Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook |
> <http://twitter.com/#!/linaroorg> Twitter |
> <http://www.linaro.org/linaro-blog/> Blog
>
@@ -304,42 +304,6 @@ temperature) and throttle appropriate devices.
1.4 Thermal Zone Parameters
---------------------------
- ::
-
- struct thermal_bind_params
-
- This structure defines the following parameters that are used to bind
- a zone with a cooling device for a particular trip point.
-
- .cdev:
- The cooling device pointer
- .weight:
- The 'influence' of a particular cooling device on this
- zone. This is relative to the rest of the cooling
- devices. For example, if all cooling devices have a
- weight of 1, then they all contribute the same. You can
- use percentages if you want, but it's not mandatory. A
- weight of 0 means that this cooling device doesn't
- contribute to the cooling of this zone unless all cooling
- devices have a weight of 0. If all weights are 0, then
- they all contribute the same.
- .trip_mask:
- This is a bit mask that gives the binding relation between
- this thermal zone and cdev, for a particular trip point.
- If nth bit is set, then the cdev and thermal zone are bound
- for trip point n.
- .binding_limits:
- This is an array of cooling state limits. Must have
- exactly 2 * thermal_zone.number_of_trip_points. It is an
- array consisting of tuples <lower-state upper-state> of
- state limits. Each trip will be associated with one state
- limit tuple when binding. A NULL pointer means
- <THERMAL_NO_LIMITS THERMAL_NO_LIMITS> on all trips.
- These limits are used when binding a cdev to a trip point.
- .match:
- This call back returns success(0) if the 'tz and cdev' need to
- be bound, as per platform data.
-
::
struct thermal_zone_params
@@ -357,10 +321,6 @@ temperature) and throttle appropriate devices.
will be created. when no_hwmon == true, nothing will be done.
In case the thermal_zone_params is NULL, the hwmon interface
will be created (for backward compatibility).
- .num_tbps:
- Number of thermal_bind_params entries for this zone
- .tbp:
- thermal_bind_params entries
2. sysfs attributes structure
=============================
@@ -794,64 +794,18 @@ void print_bind_err_msg(struct thermal_zone_device *tz,
tz->type, cdev->type, ret);
}
-static void __bind(struct thermal_zone_device *tz, int mask,
- struct thermal_cooling_device *cdev,
- unsigned long *limits,
- unsigned int weight)
-{
- int i, ret;
-
- for (i = 0; i < tz->num_trips; i++) {
- if (mask & (1 << i)) {
- unsigned long upper, lower;
-
- upper = THERMAL_NO_LIMIT;
- lower = THERMAL_NO_LIMIT;
- if (limits) {
- lower = limits[i * 2];
- upper = limits[i * 2 + 1];
- }
- ret = thermal_zone_bind_cooling_device(tz, i, cdev,
- upper, lower,
- weight);
- if (ret)
- print_bind_err_msg(tz, cdev, ret);
- }
- }
-}
-
static void bind_cdev(struct thermal_cooling_device *cdev)
{
- int i, ret;
- const struct thermal_zone_params *tzp;
+ int ret;
struct thermal_zone_device *pos = NULL;
mutex_lock(&thermal_list_lock);
list_for_each_entry(pos, &thermal_tz_list, node) {
- if (!pos->tzp && !pos->ops->bind)
- continue;
-
if (pos->ops->bind) {
ret = pos->ops->bind(pos, cdev);
if (ret)
print_bind_err_msg(pos, cdev, ret);
- continue;
- }
-
- tzp = pos->tzp;
- if (!tzp || !tzp->tbp)
- continue;
-
- for (i = 0; i < tzp->num_tbps; i++) {
- if (tzp->tbp[i].cdev || !tzp->tbp[i].match)
- continue;
- if (tzp->tbp[i].match(pos, cdev))
- continue;
- tzp->tbp[i].cdev = cdev;
- __bind(pos, tzp->tbp[i].trip_mask, cdev,
- tzp->tbp[i].binding_limits,
- tzp->tbp[i].weight);
}
}
@@ -1138,16 +1092,6 @@ void thermal_cooling_device_update(struct thermal_cooling_device *cdev)
}
EXPORT_SYMBOL_GPL(thermal_cooling_device_update);
-static void __unbind(struct thermal_zone_device *tz, int mask,
- struct thermal_cooling_device *cdev)
-{
- int i;
-
- for (i = 0; i < tz->num_trips; i++)
- if (mask & (1 << i))
- thermal_zone_unbind_cooling_device(tz, i, cdev);
-}
-
/**
* thermal_cooling_device_unregister - removes a thermal cooling device
* @cdev: the thermal cooling device to remove.
@@ -1157,8 +1101,6 @@ static void __unbind(struct thermal_zone_device *tz, int mask,
*/
void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev)
{
- int i;
- const struct thermal_zone_params *tzp;
struct thermal_zone_device *tz;
if (!cdev)
@@ -1175,21 +1117,8 @@ void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev)
/* Unbind all thermal zones associated with 'this' cdev */
list_for_each_entry(tz, &thermal_tz_list, node) {
- if (tz->ops->unbind) {
+ if (tz->ops->unbind)
tz->ops->unbind(tz, cdev);
- continue;
- }
-
- if (!tz->tzp || !tz->tzp->tbp)
- continue;
-
- tzp = tz->tzp;
- for (i = 0; i < tzp->num_tbps; i++) {
- if (tzp->tbp[i].cdev == cdev) {
- __unbind(tz, tzp->tbp[i].trip_mask, cdev);
- tzp->tbp[i].cdev = NULL;
- }
- }
}
mutex_unlock(&thermal_list_lock);
@@ -1200,41 +1129,20 @@ EXPORT_SYMBOL_GPL(thermal_cooling_device_unregister);
static void bind_tz(struct thermal_zone_device *tz)
{
- int i, ret;
+ int ret;
struct thermal_cooling_device *pos = NULL;
- const struct thermal_zone_params *tzp = tz->tzp;
- if (!tzp && !tz->ops->bind)
+ if (!tz->ops->bind)
return;
mutex_lock(&thermal_list_lock);
- /* If there is ops->bind, try to use ops->bind */
- if (tz->ops->bind) {
- list_for_each_entry(pos, &thermal_cdev_list, node) {
- ret = tz->ops->bind(tz, pos);
- if (ret)
- print_bind_err_msg(tz, pos, ret);
- }
- goto exit;
- }
-
- if (!tzp || !tzp->tbp)
- goto exit;
-
list_for_each_entry(pos, &thermal_cdev_list, node) {
- for (i = 0; i < tzp->num_tbps; i++) {
- if (tzp->tbp[i].cdev || !tzp->tbp[i].match)
- continue;
- if (tzp->tbp[i].match(tz, pos))
- continue;
- tzp->tbp[i].cdev = pos;
- __bind(tz, tzp->tbp[i].trip_mask, pos,
- tzp->tbp[i].binding_limits,
- tzp->tbp[i].weight);
- }
+ ret = tz->ops->bind(tz, pos);
+ if (ret)
+ print_bind_err_msg(tz, pos, ret);
}
-exit:
+
mutex_unlock(&thermal_list_lock);
}
@@ -1491,15 +1399,13 @@ EXPORT_SYMBOL_GPL(thermal_zone_device_id);
*/
void thermal_zone_device_unregister(struct thermal_zone_device *tz)
{
- int i, tz_id;
- const struct thermal_zone_params *tzp;
+ int tz_id;
struct thermal_cooling_device *cdev;
struct thermal_zone_device *pos = NULL;
if (!tz)
return;
- tzp = tz->tzp;
tz_id = tz->id;
mutex_lock(&thermal_list_lock);
@@ -1514,22 +1420,9 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz)
list_del(&tz->node);
/* Unbind all cdevs associated with 'this' thermal zone */
- list_for_each_entry(cdev, &thermal_cdev_list, node) {
- if (tz->ops->unbind) {
+ list_for_each_entry(cdev, &thermal_cdev_list, node)
+ if (tz->ops->unbind)
tz->ops->unbind(tz, cdev);
- continue;
- }
-
- if (!tzp || !tzp->tbp)
- break;
-
- for (i = 0; i < tzp->num_tbps; i++) {
- if (tzp->tbp[i].cdev == cdev) {
- __unbind(tz, tzp->tbp[i].trip_mask, cdev);
- tzp->tbp[i].cdev = NULL;
- }
- }
- }
mutex_unlock(&thermal_list_lock);
@@ -207,41 +207,6 @@ struct thermal_governor {
struct list_head governor_list;
};
-/* Structure that holds binding parameters for a zone */
-struct thermal_bind_params {
- struct thermal_cooling_device *cdev;
-
- /*
- * This is a measure of 'how effectively these devices can
- * cool 'this' thermal zone. It shall be determined by
- * platform characterization. This value is relative to the
- * rest of the weights so a cooling device whose weight is
- * double that of another cooling device is twice as
- * effective. See Documentation/driver-api/thermal/sysfs-api.rst for more
- * information.
- */
- int weight;
-
- /*
- * This is a bit mask that gives the binding relation between this
- * thermal zone and cdev, for a particular trip point.
- * See Documentation/driver-api/thermal/sysfs-api.rst for more information.
- */
- int trip_mask;
-
- /*
- * This is an array of cooling state limits. Must have exactly
- * 2 * thermal_zone.number_of_trip_points. It is an array consisting
- * of tuples <lower-state upper-state> of state limits. Each trip
- * will be associated with one state limit tuple when binding.
- * A NULL pointer means <THERMAL_NO_LIMITS THERMAL_NO_LIMITS>
- * on all trips.
- */
- unsigned long *binding_limits;
- int (*match) (struct thermal_zone_device *tz,
- struct thermal_cooling_device *cdev);
-};
-
/* Structure to define Thermal Zone parameters */
struct thermal_zone_params {
char governor_name[THERMAL_NAME_LENGTH];
@@ -253,9 +218,6 @@ struct thermal_zone_params {
*/
bool no_hwmon;
- int num_tbps; /* Number of tbp entries */
- struct thermal_bind_params *tbp;
-
/*
* Sustainable power (heat) that this thermal zone can dissipate in
* mW