]> Git Repo - linux.git/blob - drivers/gpu/drm/lima/lima_devfreq.h
Merge existing fixes from regmap/for-5.8
[linux.git] / drivers / gpu / drm / lima / lima_devfreq.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright 2020 Martin Blumenstingl <[email protected]> */
3
4 #ifndef __LIMA_DEVFREQ_H__
5 #define __LIMA_DEVFREQ_H__
6
7 #include <linux/spinlock.h>
8 #include <linux/ktime.h>
9
10 struct devfreq;
11 struct opp_table;
12 struct thermal_cooling_device;
13
14 struct lima_device;
15
16 struct lima_devfreq {
17         struct devfreq *devfreq;
18         struct opp_table *clkname_opp_table;
19         struct opp_table *regulators_opp_table;
20         struct thermal_cooling_device *cooling;
21         bool opp_of_table_added;
22
23         ktime_t busy_time;
24         ktime_t idle_time;
25         ktime_t time_last_update;
26         int busy_count;
27         /*
28          * Protect busy_time, idle_time, time_last_update and busy_count
29          * because these can be updated concurrently, for example by the GP
30          * and PP interrupts.
31          */
32         spinlock_t lock;
33 };
34
35 int lima_devfreq_init(struct lima_device *ldev);
36 void lima_devfreq_fini(struct lima_device *ldev);
37
38 void lima_devfreq_record_busy(struct lima_devfreq *devfreq);
39 void lima_devfreq_record_idle(struct lima_devfreq *devfreq);
40
41 int lima_devfreq_resume(struct lima_devfreq *devfreq);
42 int lima_devfreq_suspend(struct lima_devfreq *devfreq);
43
44 #endif
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