drivers/gpu/drm/imagination/pvr_power.h

   1 /* SPDX-License-Identifier: GPL-2.0-only OR MIT */
   2 /* Copyright (c) 2023 Imagination Technologies Ltd. */
   3
   4 #ifndef PVR_POWER_H
   5 #define PVR_POWER_H
   6
   7 #include "pvr_device.h"
   8
   9 #include <linux/mutex.h>
  10 #include <linux/pm_runtime.h>
  11
  12 int pvr_watchdog_init(struct pvr_device *pvr_dev);
  13 void pvr_watchdog_fini(struct pvr_device *pvr_dev);
  14
  15 void pvr_device_lost(struct pvr_device *pvr_dev);
  16
  17 bool pvr_power_is_idle(struct pvr_device *pvr_dev);
  18
  19 int pvr_power_device_suspend(struct device *dev);
  20 int pvr_power_device_resume(struct device *dev);
  21 int pvr_power_device_idle(struct device *dev);
  22
  23 int pvr_power_reset(struct pvr_device *pvr_dev, bool hard_reset);
  24
  25 static __always_inline int
  26 pvr_power_get(struct pvr_device *pvr_dev)
  27 {
  28         struct drm_device *drm_dev = from_pvr_device(pvr_dev);
  29
  30         return pm_runtime_resume_and_get(drm_dev->dev);
  31 }
  32
  33 static __always_inline int
  34 pvr_power_put(struct pvr_device *pvr_dev)
  35 {
  36         struct drm_device *drm_dev = from_pvr_device(pvr_dev);
  37
  38         return pm_runtime_put(drm_dev->dev);
  39 }
  40
  41 #endif /* PVR_POWER_H */