On Wed Jul 15 12:43:26 2026 +0100, Dave Stevenson wrote:
> Avoid powering the sensor up and down unnecessarily by using
> pm_runtime's autosuspend_delay feature.
>
> Signed-off-by: Dave Stevenson <[email protected]>
> Reviewed-by: Jacopo Mondi <[email protected]>
> Signed-off-by: Sakari Ailus <[email protected]>
Patch committed.
Thanks,
Sakari Ailus
drivers/media/i2c/imx355.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/drivers/media/i2c/imx355.c b/drivers/media/i2c/imx355.c
index 120eda46d982..17a2acc1152d 100644
--- a/drivers/media/i2c/imx355.c
+++ b/drivers/media/i2c/imx355.c
@@ -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);
}
_______________________________________________
linuxtv-commits mailing list -- [email protected]
To unsubscribe send an email to [email protected]
