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| author | Ezequiel Garcia <ezequiel@collabora.com> | 2019-08-15 13:48:05 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-08-26 10:52:06 -0300 |
| commit | 51ff392c280733aa9e6bd47b3f5e83e32bfdf16a (patch) | |
| tree | b61a41e79f08d1a3a1fe26c0d5946f5faccbfe03 /drivers/media | |
| parent | a9cff393c1d78ecbbc33e6196e79bb05ccb4a709 (diff) | |
| download | linux-stable-51ff392c280733aa9e6bd47b3f5e83e32bfdf16a.tar.gz linux-stable-51ff392c280733aa9e6bd47b3f5e83e32bfdf16a.tar.bz2 linux-stable-51ff392c280733aa9e6bd47b3f5e83e32bfdf16a.zip | |
media: v4l2-core: introduce a helper to unregister a i2c subdev
Introduce a new video4linux2 i2c helper, to unregister a subdev.
This allows to get rid of yet another ifdef.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: fix checkpatch warning]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-device.c | 25 | ||||
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-i2c.c | 20 |
2 files changed, 22 insertions, 23 deletions
diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c index c2811238996f..63d6b147b21e 100644 --- a/drivers/media/v4l2-core/v4l2-device.c +++ b/drivers/media/v4l2-core/v4l2-device.c @@ -9,7 +9,6 @@ #include <linux/types.h> #include <linux/ioctl.h> #include <linux/module.h> -#include <linux/i2c.h> #include <linux/slab.h> #include <linux/videodev2.h> #include <media/v4l2-device.h> @@ -99,28 +98,8 @@ void v4l2_device_unregister(struct v4l2_device *v4l2_dev) /* Unregister subdevs */ list_for_each_entry_safe(sd, next, &v4l2_dev->subdevs, list) { v4l2_device_unregister_subdev(sd); -#if IS_ENABLED(CONFIG_I2C) - if (sd->flags & V4L2_SUBDEV_FL_IS_I2C) { - struct i2c_client *client = v4l2_get_subdevdata(sd); - - /* - * We need to unregister the i2c client - * explicitly. We cannot rely on - * i2c_del_adapter to always unregister - * clients for us, since if the i2c bus is a - * platform bus, then it is never deleted. - * - * Device tree or ACPI based devices must not - * be unregistered as they have not been - * registered by us, and would not be - * re-created by just probing the V4L2 driver. - */ - if (client && - !client->dev.of_node && !client->dev.fwnode) - i2c_unregister_device(client); - continue; - } -#endif + if (sd->flags & V4L2_SUBDEV_FL_IS_I2C) + v4l2_i2c_subdev_unregister(sd); else if (sd->flags & V4L2_SUBDEV_FL_IS_SPI) v4l2_spi_subdev_unregister(sd); } diff --git a/drivers/media/v4l2-core/v4l2-i2c.c b/drivers/media/v4l2-core/v4l2-i2c.c index f393dd4f1c00..a26d48f23a2d 100644 --- a/drivers/media/v4l2-core/v4l2-i2c.c +++ b/drivers/media/v4l2-core/v4l2-i2c.c @@ -8,6 +8,26 @@ #include <media/v4l2-common.h> #include <media/v4l2-device.h> +void v4l2_i2c_subdev_unregister(struct v4l2_subdev *sd) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + /* + * We need to unregister the i2c client + * explicitly. We cannot rely on + * i2c_del_adapter to always unregister + * clients for us, since if the i2c bus is a + * platform bus, then it is never deleted. + * + * Device tree or ACPI based devices must not + * be unregistered as they have not been + * registered by us, and would not be + * re-created by just probing the V4L2 driver. + */ + if (client && !client->dev.of_node && !client->dev.fwnode) + i2c_unregister_device(client); +} + void v4l2_i2c_subdev_set_name(struct v4l2_subdev *sd, struct i2c_client *client, const char *devname, const char *postfix) { |