| Message ID | 1370939028-8352-16-git-send-email-g.liakhovetski@gmx.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, Jun 11, 2013 at 1:53 PM, Guennadi Liakhovetski <g.liakhovetski@gmx.de> wrote: > 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: Lad, Prabhakar <prabhakar.csengg@gmail.com> Regards, --Prabhakar Lad -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tue 11 June 2013 10:23:42 Guennadi Liakhovetski wrote: > 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> > --- > drivers/media/v4l2-core/v4l2-common.c | 2 ++ > include/media/v4l2-subdev.h | 2 ++ > 2 files changed, 4 insertions(+), 0 deletions(-) > > diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c > index 3fed63f..accfec6 100644 > --- a/drivers/media/v4l2-core/v4l2-common.c > +++ b/drivers/media/v4l2-core/v4l2-common.c > @@ -291,6 +291,7 @@ 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); > @@ -426,6 +427,7 @@ 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); > diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h > index 5298d67..d8756fa 100644 > --- a/include/media/v4l2-subdev.h > +++ b/include/media/v4l2-subdev.h > @@ -585,6 +585,8 @@ struct v4l2_subdev { > void *host_priv; > /* subdev device node */ > struct video_device *devnode; > + /* pointer to the physical device */ Can you change this comment to: /* pointer to the physical device, if any */ It's a small change, but this makes it clear that it's OK to leave it to NULL for subdevs that don't have an underlying device struct. Thanks! Hans > + struct device *dev; > }; > > #define media_entity_to_v4l2_subdev(ent) \ > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c index 3fed63f..accfec6 100644 --- a/drivers/media/v4l2-core/v4l2-common.c +++ b/drivers/media/v4l2-core/v4l2-common.c @@ -291,6 +291,7 @@ 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); @@ -426,6 +427,7 @@ 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); diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 5298d67..d8756fa 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -585,6 +585,8 @@ struct v4l2_subdev { void *host_priv; /* subdev device node */ struct video_device *devnode; + /* pointer to the physical device */ + struct device *dev; }; #define media_entity_to_v4l2_subdev(ent) \
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> --- drivers/media/v4l2-core/v4l2-common.c | 2 ++ include/media/v4l2-subdev.h | 2 ++ 2 files changed, 4 insertions(+), 0 deletions(-)