[PATCH] media: i2c: dw9768: Use runtime PM autosuspend

[Zhi Mao]

Use runtime PM autosuspend function to avoid rapid power state bouncing.

Signed-off-by: Zhi Mao <zhi.mao@xxxxxxxxxxxx>
---
 drivers/media/i2c/dw9768.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/dw9768.c b/drivers/media/i2c/dw9768.c
index 18ef2b35c9aa..9d39198a9ad4 100644
--- a/drivers/media/i2c/dw9768.c
+++ b/drivers/media/i2c/dw9768.c
@@ -374,7 +374,8 @@ static int dw9768_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
 
 static int dw9768_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
 {
-	pm_runtime_put(sd->dev);
+	pm_runtime_mark_last_busy(sd->dev);
+	pm_runtime_put_autosuspend(sd->dev);
 
 	return 0;
 }
@@ -490,6 +491,8 @@ static int dw9768_probe(struct i2c_client *client)
 		goto err_power_off;
 	}
 
+	pm_runtime_set_autosuspend_delay(dev, 1000);
+	pm_runtime_use_autosuspend(dev);
 	pm_runtime_idle(dev);
 
 	return 0;
-- 
2.46.0