[PATCH 09/12] media: mt9m001: register to V4L2 asynchronous subdevice framework
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: 2018-12-22 17:13:27
Also in:
linux-media
Subsystem:
media input infrastructure (v4l/dvb), the rest, v4l2 camera sensor drivers · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds, Sakari Ailus
Register a sub-device to the asynchronous subdevice framework, and also create subdevice device node. Cc: Guennadi Liakhovetski <redacted> Cc: Sakari Ailus <sakari.ailus@linux.intel.com> Cc: Mauro Carvalho Chehab <redacted> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> --- drivers/media/i2c/Kconfig | 2 +- drivers/media/i2c/mt9m001.c | 9 ++++++++- 2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index 5e30ad3..a6d8416 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig@@ -845,7 +845,7 @@ 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
diff --git a/drivers/media/i2c/mt9m001.c b/drivers/media/i2c/mt9m001.c
index e31fb7d..b4deec3 100644
--- a/drivers/media/i2c/mt9m001.c
+++ b/drivers/media/i2c/mt9m001.c@@ -716,6 +716,7 @@ 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);
@@ -765,10 +766,16 @@ 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_put_sync(&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);
@@ -785,9 +792,9 @@ 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);
--
2.7.4