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media: mt9m001: register to V4L2 asynchronous subdevice framework 

Register a sub-device to the asynchronous subdevice framework, and also
create subdevice device node.

Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Akinobu Mita 2019-01-08 12:51:47 -02:00 committed by Mauro Carvalho Chehab
parent 12d85c3e27
commit 73b3386098
2 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/media/i2c/Kconfig
View File

@ -869,9 +869,8 @@ config VIDEO_VS6624
config VIDEO_MT9M001
tristate "mt9m001 support"
depends on I2C && VIDEO_V4L2
depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
depends on MEDIA_CAMERA_SUPPORT
depends on MEDIA_CONTROLLER
help
This driver supports MT9M001 cameras from Micron, monochrome
and colour models.

9
drivers/media/i2c/mt9m001.c
View File

@ -720,6 +720,7 @@ static int mt9m001_probe(struct i2c_client *client,
return PTR_ERR(mt9m001->reset_gpio);
v4l2_i2c_subdev_init(&mt9m001->subdev, client, &mt9m001_subdev_ops);
mt9m001->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
v4l2_ctrl_handler_init(&mt9m001->hdl, 4);
v4l2_ctrl_new_std(&mt9m001->hdl, &mt9m001_ctrl_ops,
V4L2_CID_VFLIP, 0, 1, 1, 0);
@ -768,10 +769,16 @@ static int mt9m001_probe(struct i2c_client *client,
if (ret)
goto error_power_off;
ret = v4l2_async_register_subdev(&mt9m001->subdev);
if (ret)
goto error_entity_cleanup;
pm_runtime_idle(&client->dev);
return 0;
error_entity_cleanup:
media_entity_cleanup(&mt9m001->subdev.entity);
error_power_off:
pm_runtime_disable(&client->dev);
pm_runtime_set_suspended(&client->dev);
@ -788,9 +795,9 @@ static int mt9m001_remove(struct i2c_client *client)
{
struct mt9m001 *mt9m001 = to_mt9m001(client);
v4l2_device_unregister_subdev(&mt9m001->subdev);
pm_runtime_get_sync(&client->dev);
v4l2_async_unregister_subdev(&mt9m001->subdev);
media_entity_cleanup(&mt9m001->subdev.entity);
pm_runtime_disable(&client->dev);