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drm/lima: add lima_devfreq_resume/suspend 

Used for device resume/suspend in the following commits.

Tested-by: Bhushan Shah <bshah@kde.org>
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200421133551.31481-6-yuq825@gmail.com
This commit is contained in:
Qiang Yu 2020-04-21 21:35:46 +08:00
parent 4eb70cd3f2
commit 4836cf044d
2 changed files with 27 additions and 0 deletions
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24
drivers/gpu/drm/lima/lima_devfreq.c
View File

@ -231,3 +231,27 @@ void lima_devfreq_record_idle(struct lima_devfreq *devfreq)
spin_unlock_irqrestore(&devfreq->lock, irqflags);
}
int lima_devfreq_resume(struct lima_devfreq *devfreq)
{
unsigned long irqflags;
if (!devfreq->devfreq)
return 0;
spin_lock_irqsave(&devfreq->lock, irqflags);
lima_devfreq_reset(devfreq);
spin_unlock_irqrestore(&devfreq->lock, irqflags);
return devfreq_resume_device(devfreq->devfreq);
}
int lima_devfreq_suspend(struct lima_devfreq *devfreq)
{
if (!devfreq->devfreq)
return 0;
return devfreq_suspend_device(devfreq->devfreq);
}

3
drivers/gpu/drm/lima/lima_devfreq.h
View File

@ -38,4 +38,7 @@ 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