diff options
Diffstat (limited to 'drivers/media')
-rw-r--r-- | drivers/media/i2c/video-i2c.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/media/i2c/video-i2c.c b/drivers/media/i2c/video-i2c.c index b6ebb8d53e90..01dcf179f203 100644 --- a/drivers/media/i2c/video-i2c.c +++ b/drivers/media/i2c/video-i2c.c @@ -736,9 +736,11 @@ static int video_i2c_probe(struct i2c_client *client, video_set_drvdata(&data->vdev, data); i2c_set_clientdata(client, data); - ret = data->chip->set_power(data, true); - if (ret) - goto error_unregister_device; + if (data->chip->set_power) { + ret = data->chip->set_power(data, true); + if (ret) + goto error_unregister_device; + } pm_runtime_get_noresume(&client->dev); pm_runtime_set_active(&client->dev); @@ -767,7 +769,9 @@ error_pm_disable: pm_runtime_disable(&client->dev); pm_runtime_set_suspended(&client->dev); pm_runtime_put_noidle(&client->dev); - data->chip->set_power(data, false); + + if (data->chip->set_power) + data->chip->set_power(data, false); error_unregister_device: v4l2_device_unregister(v4l2_dev); @@ -791,7 +795,9 @@ static int video_i2c_remove(struct i2c_client *client) pm_runtime_disable(&client->dev); pm_runtime_set_suspended(&client->dev); pm_runtime_put_noidle(&client->dev); - data->chip->set_power(data, false); + + if (data->chip->set_power) + data->chip->set_power(data, false); video_unregister_device(&data->vdev); @@ -804,6 +810,9 @@ static int video_i2c_pm_runtime_suspend(struct device *dev) { struct video_i2c_data *data = i2c_get_clientdata(to_i2c_client(dev)); + if (!data->chip->set_power) + return 0; + return data->chip->set_power(data, false); } @@ -811,6 +820,9 @@ static int video_i2c_pm_runtime_resume(struct device *dev) { struct video_i2c_data *data = i2c_get_clientdata(to_i2c_client(dev)); + if (!data->chip->set_power) + return 0; + return data->chip->set_power(data, true); } |