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[media] tw2804: Revert ADC Control commit 523a4f7fbc 

Case: In AdLink MPG24 there is bt878 exists (it captures one frame of all video
inputs), Video Signal for it one transmits through tw2804 chip, so we can't
control ADC (shut on/off) on tw2804, as some another can use bttv capture way.

Signed-off-by: Volokh Konstantin <volokh84@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Volokh Konstantin 2013-03-23 19:28:28 -03:00 committed by Mauro Carvalho Chehab
parent 136d9f3a41
commit 8dbee53b2a
1 changed files with 1 additions and 16 deletions
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17
drivers/media/i2c/tw2804.c
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@ -53,7 +53,7 @@ static const u8 global_registers[] = {
0x3d, 0x80,
0x3e, 0x82,
0x3f, 0x82,
0x78, 0x0f,
0x78, 0x00,
0xff, 0xff, /* Terminator (reg 0xff does not exist) */
};
@ -337,20 +337,6 @@ static int tw2804_s_video_routing(struct v4l2_subdev *sd, u32 input, u32 output,
return 0;
}
static int tw2804_s_stream(struct v4l2_subdev *sd, int enable)
{
struct tw2804 *dec = to_state(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
u32 reg = read_reg(client, 0x78, 0);
if (enable == 1)
write_reg(client, 0x78, reg & ~(1 << dec->channel), 0);
else
write_reg(client, 0x78, reg | (1 << dec->channel), 0);
return 0;
}
static const struct v4l2_ctrl_ops tw2804_ctrl_ops = {
.g_volatile_ctrl = tw2804_g_volatile_ctrl,
.s_ctrl = tw2804_s_ctrl,
@ -358,7 +344,6 @@ static const struct v4l2_ctrl_ops tw2804_ctrl_ops = {
static const struct v4l2_subdev_video_ops tw2804_video_ops = {
.s_routing = tw2804_s_video_routing,
.s_stream = tw2804_s_stream,
};
static const struct v4l2_subdev_core_ops tw2804_core_ops = {