diff options
| author | Vaibhav Hiremath <hvaibhav@ti.com> | 2010-03-27 13:37:54 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-05-18 05:52:47 +0200 |
| commit | 63b59cecb2fa0a274d1c7240112460816d826988 (patch) | |
| tree | 8da2f8f4f99674ffc9d0eb2fb08e22a438588dda /drivers/media/video/tvp514x.c | |
| parent | V4L/DVB: V4L: vpfe_capture: Add support for USERPTR mode of operation (diff) | |
| download | linux-63b59cecb2fa0a274d1c7240112460816d826988.tar.xz linux-63b59cecb2fa0a274d1c7240112460816d826988.zip | |
V4L/DVB: V4L: tvp514x: Add Powerup sequence during s_input to lock the signal properly
For the sequence streamon -> streamoff and again s_input, it fails
to lock the signal, since streamoff puts TVP514x into power off state
which leads to failure in sub-sequent s_input.
So add powerup sequence in s_routing (if disabled), since it is
important to lock the signal at this stage.
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Muralidharan Karicheri <mkaricheri@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/tvp514x.c')
| -rw-r--r-- | drivers/media/video/tvp514x.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/media/video/tvp514x.c b/drivers/media/video/tvp514x.c index e4815a1806e3..e826114b7fb8 100644 --- a/drivers/media/video/tvp514x.c +++ b/drivers/media/video/tvp514x.c @@ -79,6 +79,8 @@ struct tvp514x_std_info { }; static struct tvp514x_reg tvp514x_reg_list_default[0x40]; + +static int tvp514x_s_stream(struct v4l2_subdev *sd, int enable); /** * struct tvp514x_decoder - TVP5146/47 decoder object * @sd: Subdevice Slave handle @@ -644,6 +646,17 @@ static int tvp514x_s_routing(struct v4l2_subdev *sd, /* Index out of bound */ return -EINVAL; + /* + * For the sequence streamon -> streamoff and again s_input + * it fails to lock the signal, since streamoff puts TVP514x + * into power off state which leads to failure in sub-sequent s_input. + * + * So power up the TVP514x device here, since it is important to lock + * the signal at this stage. + */ + if (!decoder->streaming) + tvp514x_s_stream(sd, 1); + input_sel = input; output_sel = output; |