Commit 45b9d1da authored by Jie Zhan's avatar Jie Zhan Committed by Chanwoo Choi
Browse files

PM / devfreq: Allow devfreq driver to add custom sysfs ABIs 



Extend the devfreq_dev_profile to allow drivers optionally create
device-specific sysfs ABIs together with other common devfreq ABIs under
the devfreq device path.

Reviewed-by: default avatarJonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: default avatarHuisong Li <lihuisong@huawei.com>
Signed-off-by: default avatarJie Zhan <zhanjie9@hisilicon.com>
Signed-off-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Link: https://patchwork.kernel.org/project/linux-pm/patch/20250623143401.4095045-2-zhanjie9@hisilicon.com/
parent c3bc3613

drivers/devfreq/devfreq.c

+1 −0
Original line number Diff line number Diff line
@@ -831,6 +831,7 @@ struct devfreq *devfreq_add_device(struct device *dev, 
	mutex_lock(&devfreq->lock);

	devfreq->dev.parent = dev;

	devfreq->dev.class = devfreq_class;

	devfreq->dev.groups = profile->dev_groups;

	devfreq->dev.release = devfreq_dev_release;

	INIT_LIST_HEAD(&devfreq->node);

	devfreq->profile = profile;

include/linux/devfreq.h

+4 −0
Original line number Diff line number Diff line
@@ -103,6 +103,8 @@ struct devfreq_dev_status { 
 *

 * @is_cooling_device: A self-explanatory boolean giving the device a

 *                     cooling effect property.

 * @dev_groups:		Optional device-specific sysfs attribute groups that to

 *			be attached to the devfreq device.

 */

struct devfreq_dev_profile {

	unsigned long initial_freq;
@@ -119,6 +121,8 @@ struct devfreq_dev_profile { 
	unsigned int max_state;



	bool is_cooling_device;



	const struct attribute_group **dev_groups;

};



/**