On Thu, Jul 26, 2012 at 04:41:20PM +0800, Zhang Rui wrote:
> List thermal_instance in thermal_cooling_device so that
> cooling device can know the cooling state requirement
> of all the thermal instances.
>
> Reviewed-by: Rafael J. Wysocki <rjw@xxxxxxx>
> Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
Reviewed-by: Eduardo Valentin <eduardo.valentin@xxxxxx>
> ---
> drivers/thermal/thermal_sys.c | 7 ++++++-
> include/linux/thermal.h | 1 +
> 2 files changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
> index b2a2d48..9906717 100644
> --- a/drivers/thermal/thermal_sys.c
> +++ b/drivers/thermal/thermal_sys.c
> @@ -57,6 +57,7 @@ struct thermal_instance {
> char attr_name[THERMAL_NAME_LENGTH];
> struct device_attribute attr;
> struct list_head tz_node; /* node in tz->thermal_instances */
> + struct list_head cdev_node; /* node in cdev->thermal_instances */
> };
>
> static DEFINE_IDR(thermal_tz_idr);
> @@ -878,8 +879,10 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
> result = -EEXIST;
> break;
> }
> - if (!result)
> + if (!result) {
> list_add_tail(&dev->tz_node, &tz->thermal_instances);
> + list_add_tail(&dev->cdev_node, &cdev->thermal_instances);
> + }
> mutex_unlock(&tz->lock);
>
> if (!result)
> @@ -915,6 +918,7 @@ int thermal_zone_unbind_cooling_device(struct thermal_zone_device *tz,
> 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);
> + list_del(&pos->cdev_node);
> mutex_unlock(&tz->lock);
> goto unbind;
> }
> @@ -984,6 +988,7 @@ thermal_cooling_device_register(char *type, void *devdata,
> }
>
> strcpy(cdev->type, type);
> + INIT_LIST_HEAD(&cdev->thermal_instances);
> cdev->ops = ops;
> cdev->device.class = &thermal_class;
> cdev->devdata = devdata;
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index b11db1e..bcf3384 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -94,6 +94,7 @@ struct thermal_cooling_device {
> struct device device;
> void *devdata;
> const struct thermal_cooling_device_ops *ops;
> + struct list_head thermal_instances;
> struct list_head node;
> };
>
> --
> 1.7.9.5
>
> --
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