[media] adv7511: add support to for the content type control

This transmitter now supports configuring the IT content type of the incoming
video.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/i2c/adv7511.c b/drivers/media/i2c/adv7511.c
index 471fd23..a9ed533 100644 (file)
--- a/drivers/media/i2c/adv7511.c
+++ b/drivers/media/i2c/adv7511.c
@@ -103,12 +103,14 @@ struct adv7511_state {
        u32 ycbcr_enc;
        u32 quantization;
        u32 xfer_func;
+       u32 content_type;
        /* controls */
        struct v4l2_ctrl *hdmi_mode_ctrl;
        struct v4l2_ctrl *hotplug_ctrl;
        struct v4l2_ctrl *rx_sense_ctrl;
        struct v4l2_ctrl *have_edid0_ctrl;
        struct v4l2_ctrl *rgb_quantization_range_ctrl;
+       struct v4l2_ctrl *content_type_ctrl;
        struct i2c_client *i2c_edid;
        struct i2c_client *i2c_pktmem;
        struct adv7511_state_edid edid;
@@ -400,6 +402,16 @@ static int adv7511_s_ctrl(struct v4l2_ctrl *ctrl)
        }
        if (state->rgb_quantization_range_ctrl == ctrl)
                return adv7511_set_rgb_quantization_mode(sd, ctrl);
+       if (state->content_type_ctrl == ctrl) {
+               u8 itc, cn;
+
+               state->content_type = ctrl->val;
+               itc = state->content_type != V4L2_DV_IT_CONTENT_TYPE_NO_ITC;
+               cn = itc ? state->content_type : V4L2_DV_IT_CONTENT_TYPE_GRAPHICS;
+               adv7511_wr_and_or(sd, 0x57, 0x7f, itc << 7);
+               adv7511_wr_and_or(sd, 0x59, 0xcf, cn << 4);
+               return 0;
+       }
 
        return -EINVAL;
 }
@@ -1002,6 +1014,8 @@ static int adv7511_set_fmt(struct v4l2_subdev *sd,
        u8 y = HDMI_COLORSPACE_RGB;
        u8 q = HDMI_QUANTIZATION_RANGE_DEFAULT;
        u8 yq = HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
+       u8 itc = state->content_type != V4L2_DV_IT_CONTENT_TYPE_NO_ITC;
+       u8 cn = itc ? state->content_type : V4L2_DV_IT_CONTENT_TYPE_GRAPHICS;
 
        if (format->pad != 0)
                return -EINVAL;
@@ -1115,8 +1129,8 @@ static int adv7511_set_fmt(struct v4l2_subdev *sd,
        adv7511_wr_and_or(sd, 0x4a, 0xbf, 0);
        adv7511_wr_and_or(sd, 0x55, 0x9f, y << 5);
        adv7511_wr_and_or(sd, 0x56, 0x3f, c << 6);
-       adv7511_wr_and_or(sd, 0x57, 0x83, (ec << 4) | (q << 2));
-       adv7511_wr_and_or(sd, 0x59, 0x3f, yq << 6);
+       adv7511_wr_and_or(sd, 0x57, 0x83, (ec << 4) | (q << 2) | (itc << 7));
+       adv7511_wr_and_or(sd, 0x59, 0x0f, (yq << 6) | (cn << 4));
        adv7511_wr_and_or(sd, 0x4a, 0xff, 1);
 
        return 0;
@@ -1470,6 +1484,10 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *
                v4l2_ctrl_new_std_menu(hdl, &adv7511_ctrl_ops,
                        V4L2_CID_DV_TX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL,
                        0, V4L2_DV_RGB_RANGE_AUTO);
+       state->content_type_ctrl =
+               v4l2_ctrl_new_std_menu(hdl, &adv7511_ctrl_ops,
+                       V4L2_CID_DV_TX_IT_CONTENT_TYPE, V4L2_DV_IT_CONTENT_TYPE_NO_ITC,
+                       0, V4L2_DV_IT_CONTENT_TYPE_NO_ITC);
        sd->ctrl_handler = hdl;
        if (hdl->error) {
                err = hdl->error;