media: i2c: imx219: media: i2c: imx219: Enable runtime PM autosuspend

Use pm_runtime_put_autosuspend() instead of pm_runtime_put()
to allow autosuspend. Set a 1000ms autosuspend delay in
imx219_probe() to improve power efficiency.

Signed-off-by: Tarang Raval <tarang.raval@siliconsignals.io>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>

diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index 1b4eb531b3155e63cd7ea06516878f289881e8d8..3b4f68543342274ff1769e0ce164f3d5b3cb935c 100644 (file)
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -771,7 +771,8 @@ static int imx219_enable_streams(struct v4l2_subdev *sd,
        return 0;
 
 err_rpm_put:
-       pm_runtime_put(&client->dev);
+       pm_runtime_mark_last_busy(&client->dev);
+       pm_runtime_put_autosuspend(&client->dev);
        return ret;
 }
 
@@ -792,7 +793,8 @@ static int imx219_disable_streams(struct v4l2_subdev *sd,
        __v4l2_ctrl_grab(imx219->vflip, false);
        __v4l2_ctrl_grab(imx219->hflip, false);
 
-       pm_runtime_put(&client->dev);
+       pm_runtime_mark_last_busy(&client->dev);
+       pm_runtime_put_autosuspend(&client->dev);
 
        return ret;
 }
@@ -1272,6 +1274,8 @@ static int imx219_probe(struct i2c_client *client)
        }
 
        pm_runtime_idle(dev);
+       pm_runtime_set_autosuspend_delay(dev, 1000);
+       pm_runtime_use_autosuspend(dev);
 
        return 0;