diff options
Diffstat (limited to 'include/linux/devfreq-event.h')
| -rw-r--r-- | include/linux/devfreq-event.h | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/include/linux/devfreq-event.h b/include/linux/devfreq-event.h index 4db00b02ca3f..4a50a5c71a5f 100644 --- a/include/linux/devfreq-event.h +++ b/include/linux/devfreq-event.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * devfreq-event: a framework to provide raw data and events of devfreq devices * * Copyright (C) 2014 Samsung Electronics * Author: Chanwoo Choi <cw00.choi@samsung.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_DEVFREQ_EVENT_H__ @@ -81,14 +78,20 @@ struct devfreq_event_ops { * struct devfreq_event_desc - the descriptor of devfreq-event device * * @name : the name of devfreq-event device. + * @event_type : the type of the event determined and used by driver * @driver_data : the private data for devfreq-event driver. * @ops : the operation to control devfreq-event device. * * Each devfreq-event device is described with a this structure. * This structure contains the various data for devfreq-event device. + * The event_type describes what is going to be counted in the register. + * It might choose to count e.g. read requests, write data in bytes, etc. + * The full supported list of types is present in specyfic header in: + * include/dt-bindings/pmu/. */ struct devfreq_event_desc { const char *name; + u32 event_type; void *driver_data; const struct devfreq_event_ops *ops; @@ -103,8 +106,11 @@ extern int devfreq_event_get_event(struct devfreq_event_dev *edev, struct devfreq_event_data *edata); extern int devfreq_event_reset_event(struct devfreq_event_dev *edev); extern struct devfreq_event_dev *devfreq_event_get_edev_by_phandle( - struct device *dev, int index); -extern int devfreq_event_get_edev_count(struct device *dev); + struct device *dev, + const char *phandle_name, + int index); +extern int devfreq_event_get_edev_count(struct device *dev, + const char *phandle_name); extern struct devfreq_event_dev *devfreq_event_add_edev(struct device *dev, struct devfreq_event_desc *desc); extern int devfreq_event_remove_edev(struct devfreq_event_dev *edev); @@ -149,12 +155,15 @@ static inline int devfreq_event_reset_event(struct devfreq_event_dev *edev) } static inline struct devfreq_event_dev *devfreq_event_get_edev_by_phandle( - struct device *dev, int index) + struct device *dev, + const char *phandle_name, + int index) { return ERR_PTR(-EINVAL); } -static inline int devfreq_event_get_edev_count(struct device *dev) +static inline int devfreq_event_get_edev_count(struct device *dev, + const char *phandle_name) { return -EINVAL; } |