diff options
Diffstat (limited to 'drivers/media/i2c/adv7842.c')
| -rw-r--r-- | drivers/media/i2c/adv7842.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c index 5fbb788e7b59..7ccb85d45224 100644 --- a/drivers/media/i2c/adv7842.c +++ b/drivers/media/i2c/adv7842.c @@ -1359,6 +1359,19 @@ static int adv7842_s_ctrl(struct v4l2_ctrl *ctrl) return -EINVAL; } +static int adv7842_g_volatile_ctrl(struct v4l2_ctrl *ctrl) +{ + struct v4l2_subdev *sd = to_sd(ctrl); + + if (ctrl->id == V4L2_CID_DV_RX_IT_CONTENT_TYPE) { + ctrl->val = V4L2_DV_IT_CONTENT_TYPE_NO_ITC; + if ((io_read(sd, 0x60) & 1) && (infoframe_read(sd, 0x03) & 0x80)) + ctrl->val = (infoframe_read(sd, 0x05) >> 4) & 3; + return 0; + } + return -EINVAL; +} + static inline bool no_power(struct v4l2_subdev *sd) { return io_read(sd, 0x0c) & 0x24; @@ -3022,6 +3035,7 @@ static int adv7842_subscribe_event(struct v4l2_subdev *sd, static const struct v4l2_ctrl_ops adv7842_ctrl_ops = { .s_ctrl = adv7842_s_ctrl, + .g_volatile_ctrl = adv7842_g_volatile_ctrl, }; static const struct v4l2_subdev_core_ops adv7842_core_ops = { @@ -3196,6 +3210,7 @@ static int adv7842_probe(struct i2c_client *client, V4L2_DV_BT_CEA_640X480P59_94; struct adv7842_platform_data *pdata = client->dev.platform_data; struct v4l2_ctrl_handler *hdl; + struct v4l2_ctrl *ctrl; struct v4l2_subdev *sd; u16 rev; int err; @@ -3261,6 +3276,11 @@ static int adv7842_probe(struct i2c_client *client, V4L2_CID_SATURATION, 0, 255, 1, 128); v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops, V4L2_CID_HUE, 0, 128, 1, 0); + ctrl = v4l2_ctrl_new_std_menu(hdl, &adv7842_ctrl_ops, + V4L2_CID_DV_RX_IT_CONTENT_TYPE, V4L2_DV_IT_CONTENT_TYPE_NO_ITC, + 0, V4L2_DV_IT_CONTENT_TYPE_NO_ITC); + if (ctrl) + ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE; /* custom controls */ state->detect_tx_5v_ctrl = v4l2_ctrl_new_std(hdl, NULL, |