Hi Hyungwoo,
On Wed, May 31, 2017 at 09:44:10AM -0700, Hyungwoo Yang wrote:
> +static int ov13858_probe(struct i2c_client *client,
> + const struct i2c_device_id *devid)
> +{
> + struct ov13858 *ov13858;
> + int ret;
> +
> + ov13858 = devm_kzalloc(&client->dev, sizeof(*ov13858), GFP_KERNEL);
> + if (!ov13858)
> + return -ENOMEM;
> +
> + /* Initialize subdev */
> + v4l2_i2c_subdev_init(&ov13858->sd, client, &ov13858_subdev_ops);
> +
> + /* Check module identity */
> + ret = ov13858_identify_module(ov13858);
> + if (ret) {
> + dev_err(&client->dev, "failed to find sensor: %d\n", ret);
> + return ret;
> + }
> +
> + /* Set default mode to max resolution */
> + ov13858->cur_mode = &supported_modes[0];
> +
> + ret = ov13858_init_controls(ov13858);
> + if (ret)
> + return ret;
> +
> + /* Initialize subdev */
> + ov13858->sd.internal_ops = &ov13858_internal_ops;
> + ov13858->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
> + ov13858->sd.entity.ops = &ov13858_subdev_entity_ops;
> + ov13858->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
> +
> + /* Initialize source pad */
> + ov13858->pad.flags = MEDIA_PAD_FL_SOURCE;
> + ret = media_entity_pads_init(&ov13858->sd.entity, 1, &ov13858->pad);
> + if (ret) {
> + dev_err(&client->dev, "%s failed:%d\n", __func__, ret);
> + goto error_handler_free;
> + }
> +
> + ret = v4l2_async_register_subdev(&ov13858->sd);
> + if (ret < 0)
> + goto error_media_entity;
> +
> + pm_runtime_put(&client->dev);
This appears to have changed since v1. Shouldn't it be pm_runtime_enable()
and conversely pm_runtime_disable() in remove(), as it was in v1?
> +
> + return 0;
> +
> +error_media_entity:
> + media_entity_cleanup(&ov13858->sd.entity);
> +
> +error_handler_free:
> + ov13858_free_controls(ov13858);
> + dev_err(&client->dev, "%s failed:%d\n", __func__, ret);
> +
> + return ret;
> +}
> +
> +static int ov13858_remove(struct i2c_client *client)
> +{
> + struct v4l2_subdev *sd = i2c_get_clientdata(client);
> + struct ov13858 *ov13858 = to_ov13858(sd);
> +
> + v4l2_async_unregister_subdev(sd);
> + media_entity_cleanup(&sd->entity);
> + ov13858_free_controls(ov13858);
> + pm_runtime_get(&client->dev);
> +
> + return 0;
> +}
--
Regards,
Sakari Ailus
e-mail: sakari.ailus@xxxxxx XMPP: sailus@xxxxxxxxxxxxxx
