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@xxxxxxxxxxxxxxxxx> --- drivers/media/i2c/imx219.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c index 12f1aa8824fe..fb18fdc0a834 100644 --- a/drivers/media/i2c/imx219.c +++ b/drivers/media/i2c/imx219.c @@ -779,7 +779,8 @@ 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; } @@ -803,7 +804,8 @@ 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; } @@ -1275,6 +1277,8 @@ 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; -- 2.34.1
