Used for device resume/suspend in the following commits.
Signed-off-by: Qiang Yu <yuq825@xxxxxxxxx>
---
drivers/gpu/drm/lima/lima_devfreq.c | 24 ++++++++++++++++++++++++
drivers/gpu/drm/lima/lima_devfreq.h | 3 +++
2 files changed, 27 insertions(+)
diff --git a/drivers/gpu/drm/lima/lima_devfreq.c b/drivers/gpu/drm/lima/lima_devfreq.c
index 8c4d21d07529..f5bf85bbbb67 100644
--- a/drivers/gpu/drm/lima/lima_devfreq.c
+++ b/drivers/gpu/drm/lima/lima_devfreq.c
@@ -232,3 +232,27 @@ 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);
+}
diff --git a/drivers/gpu/drm/lima/lima_devfreq.h b/drivers/gpu/drm/lima/lima_devfreq.h
index 8d71ba9fb22a..5eed2975a375 100644
--- a/drivers/gpu/drm/lima/lima_devfreq.h
+++ b/drivers/gpu/drm/lima/lima_devfreq.h
@@ -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
--
2.17.1
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