media: video-i2c: check if chip struct has set_power function
Not all future supported video chips will always have power management support, and so it is important to check before calling set_power() is defined. Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com> Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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@ -736,9 +736,11 @@ static int video_i2c_probe(struct i2c_client *client,
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video_set_drvdata(&data->vdev, data);
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i2c_set_clientdata(client, data);
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ret = data->chip->set_power(data, true);
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if (ret)
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goto error_unregister_device;
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if (data->chip->set_power) {
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ret = data->chip->set_power(data, true);
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if (ret)
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goto error_unregister_device;
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}
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pm_runtime_get_noresume(&client->dev);
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pm_runtime_set_active(&client->dev);
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@ -767,7 +769,9 @@ error_pm_disable:
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pm_runtime_disable(&client->dev);
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pm_runtime_set_suspended(&client->dev);
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pm_runtime_put_noidle(&client->dev);
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data->chip->set_power(data, false);
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if (data->chip->set_power)
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data->chip->set_power(data, false);
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error_unregister_device:
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v4l2_device_unregister(v4l2_dev);
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@ -791,7 +795,9 @@ static int video_i2c_remove(struct i2c_client *client)
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pm_runtime_disable(&client->dev);
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pm_runtime_set_suspended(&client->dev);
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pm_runtime_put_noidle(&client->dev);
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data->chip->set_power(data, false);
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if (data->chip->set_power)
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data->chip->set_power(data, false);
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video_unregister_device(&data->vdev);
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@ -804,6 +810,9 @@ static int video_i2c_pm_runtime_suspend(struct device *dev)
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{
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struct video_i2c_data *data = i2c_get_clientdata(to_i2c_client(dev));
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if (!data->chip->set_power)
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return 0;
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return data->chip->set_power(data, false);
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}
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@ -811,6 +820,9 @@ static int video_i2c_pm_runtime_resume(struct device *dev)
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{
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struct video_i2c_data *data = i2c_get_clientdata(to_i2c_client(dev));
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if (!data->chip->set_power)
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return 0;
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return data->chip->set_power(data, true);
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}
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