mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-24 01:41:39 +00:00
Code Issues Releases Wiki Activity

[media] V4L2: add a device pointer to struct v4l2_subdev

Browse source 
It is often useful to have simple means to get from a subdevice to the
underlying physical device. This patch adds such a pointer to struct
v4l2_subdev and sets it accordingly in the I2C and SPI cases.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Guennadi Liakhovetski 2013-06-10 15:07:35 -03:00 committed by Mauro Carvalho Chehab
parent ff5430de70
commit 668773b846
2 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/media/v4l2-core/v4l2-common.c
View file

@ -237,6 +237,7 @@ void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client,
sd->flags |= V4L2_SUBDEV_FL_IS_I2C;
/* the owner is the same as the i2c_client's driver owner */
sd->owner = client->driver->driver.owner;
sd->dev = &client->dev;
/* i2c_client and v4l2_subdev point to one another */
v4l2_set_subdevdata(sd, client);
i2c_set_clientdata(client, sd);
@ -370,6 +371,7 @@ void v4l2_spi_subdev_init(struct v4l2_subdev *sd, struct spi_device *spi,
sd->flags |= V4L2_SUBDEV_FL_IS_SPI;
/* the owner is the same as the spi_device's driver owner */
sd->owner = spi->dev.driver->owner;
sd->dev = &spi->dev;
/* spi_device and v4l2_subdev point to one another */
v4l2_set_subdevdata(sd, spi);
spi_set_drvdata(spi, sd);

2
include/media/v4l2-subdev.h
View file

@ -583,6 +583,8 @@ struct v4l2_subdev {
void *host_priv;
/* subdev device node */
struct video_device *devnode;
/* pointer to the physical device, if any */
struct device *dev;
};
#define media_entity_to_v4l2_subdev(ent) \