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media: imx355: Use pm_runtime autosuspend_delay

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Avoid powering the sensor up and down unnecessarily by using
pm_runtime's autosuspend_delay feature.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
This commit is contained in:
Dave Stevenson
2026-07-15 12:43:26 +01:00
committed by Sakari Ailus
parent 8a52937cae
commit a21872acb7
1 changed files with 7 additions and 2 deletions
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9
drivers/media/i2c/imx355.c
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@@ -1074,7 +1074,7 @@ static int imx355_set_stream(struct v4l2_subdev *sd, int enable)
goto err_rpm_put;
} else {
imx355_stop_streaming(imx355);
pm_runtime_put(imx355->dev);
pm_runtime_put_autosuspend(imx355->dev);
}
/* vflip and hflip cannot change during streaming */
@@ -1086,7 +1086,7 @@ static int imx355_set_stream(struct v4l2_subdev *sd, int enable)
return ret;
err_rpm_put:
pm_runtime_put(imx355->dev);
pm_runtime_put_autosuspend(imx355->dev);
err_unlock:
mutex_unlock(&imx355->mutex);
@@ -1436,6 +1436,8 @@ static int imx355_probe(struct i2c_client *client)
*/
pm_runtime_set_active(imx355->dev);
pm_runtime_enable(imx355->dev);
pm_runtime_set_autosuspend_delay(imx355->dev, 1000);
pm_runtime_use_autosuspend(imx355->dev);
ret = v4l2_async_register_subdev_sensor(&imx355->sd);
if (ret < 0)
@@ -1448,6 +1450,7 @@ static int imx355_probe(struct i2c_client *client)
error_media_entity_runtime_pm:
pm_runtime_disable(imx355->dev);
pm_runtime_set_suspended(imx355->dev);
pm_runtime_dont_use_autosuspend(imx355->dev);
media_entity_cleanup(&imx355->sd.entity);
error_handler_free:
@@ -1478,6 +1481,8 @@ static void imx355_remove(struct i2c_client *client)
pm_runtime_set_suspended(imx355->dev);
}
pm_runtime_dont_use_autosuspend(imx355->dev);
mutex_destroy(&imx355->mutex);
}