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| author |   Rob Herring <robh@kernel.org> | 2020-06-12 09:57:00 -0600 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2020-06-12 09:57:00 -0600 |
| commit | 8440d4a75d90556cfb8fb3e244443f67381aafd6 (patch) | |
| tree | 2e1c986942c3beb6257121e52449f827a8ce4eaf /drivers/gpu/drm/lima/lima_devfreq.h | |
| parent | scripts/dtc: use pkg-config to include <yaml.h> in non-standard path (diff) | |
| parent | dt-bindings: Remove redundant 'maxItems' (diff) | |
| download | linux-dev-8440d4a75d90556cfb8fb3e244443f67381aafd6.tar.xz linux-dev-8440d4a75d90556cfb8fb3e244443f67381aafd6.zip | |
Merge branch 'dt/schema-cleanups' into dt/linus
Diffstat (limited to 'drivers/gpu/drm/lima/lima_devfreq.h')
| -rw-r--r-- | drivers/gpu/drm/lima/lima_devfreq.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/gpu/drm/lima/lima_devfreq.h b/drivers/gpu/drm/lima/lima_devfreq.h new file mode 100644 index 000000000000..5eed2975a375 --- /dev/null +++ b/drivers/gpu/drm/lima/lima_devfreq.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright 2020 Martin Blumenstingl <martin.blumenstingl@googlemail.com> */ + +#ifndef __LIMA_DEVFREQ_H__ +#define __LIMA_DEVFREQ_H__ + +#include <linux/spinlock.h> +#include <linux/ktime.h> + +struct devfreq; +struct opp_table; +struct thermal_cooling_device; + +struct lima_device; + +struct lima_devfreq { + struct devfreq *devfreq; + struct opp_table *clkname_opp_table; + struct opp_table *regulators_opp_table; + struct thermal_cooling_device *cooling; + bool opp_of_table_added; + + ktime_t busy_time; + ktime_t idle_time; + ktime_t time_last_update; + int busy_count; + /* + * Protect busy_time, idle_time, time_last_update and busy_count + * because these can be updated concurrently, for example by the GP + * and PP interrupts. + */ + spinlock_t lock; +}; + +int lima_devfreq_init(struct lima_device *ldev); +void lima_devfreq_fini(struct lima_device *ldev); + +void lima_devfreq_record_busy(struct lima_devfreq *devfreq); +void lima_devfreq_record_idle(struct lima_devfreq *devfreq); + +int lima_devfreq_resume(struct lima_devfreq *devfreq); +int lima_devfreq_suspend(struct lima_devfreq *devfreq); + +#endif |