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[media] adv7511: fix VIC autodetect 

The adv7511 will automatically fill in the VIC code in the AVI InfoFrame
based on the timings of the incoming pixelport signals.

However, to have this work correctly it needs to specify the fps
value in a register. After doing this the proper VIC code is filled in.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Hans Verkuil 2016-07-17 06:02:51 -03:00 committed by Mauro Carvalho Chehab
parent 43f71d93a0
commit bd3276a332
1 changed files with 20 additions and 4 deletions
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24
drivers/media/i2c/adv7511.c
View File

@ -1041,6 +1041,8 @@ static int adv7511_s_dv_timings(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
struct adv7511_state *state = get_adv7511_state(sd);
struct v4l2_bt_timings *bt = &timings->bt;
u32 fps;
v4l2_dbg(1, debug, sd, "%s:\n", __func__);
@ -1052,15 +1054,29 @@ static int adv7511_s_dv_timings(struct v4l2_subdev *sd,
if the format is one of the CEA or DMT timings. */
v4l2_find_dv_timings_cap(timings, &adv7511_timings_cap, 0, NULL, NULL);
timings->bt.flags &= ~V4L2_DV_FL_REDUCED_FPS;
/* save timings */
state->dv_timings = *timings;
/* set h/vsync polarities */
adv7511_wr_and_or(sd, 0x17, 0x9f,
((timings->bt.polarities & V4L2_DV_VSYNC_POS_POL) ? 0 : 0x40) |
((timings->bt.polarities & V4L2_DV_HSYNC_POS_POL) ? 0 : 0x20));
((bt->polarities & V4L2_DV_VSYNC_POS_POL) ? 0 : 0x40) |
((bt->polarities & V4L2_DV_HSYNC_POS_POL) ? 0 : 0x20));
fps = (u32)bt->pixelclock / (V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt));
switch (fps) {
case 24:
adv7511_wr_and_or(sd, 0xfb, 0xf9, 1 << 1);
break;
case 25:
adv7511_wr_and_or(sd, 0xfb, 0xf9, 2 << 1);
break;
case 30:
adv7511_wr_and_or(sd, 0xfb, 0xf9, 3 << 1);
break;
default:
adv7511_wr_and_or(sd, 0xfb, 0xf9, 0);
break;
}
/* update quantization range based on new dv_timings */
adv7511_set_rgb_quantization_mode(sd, state->rgb_quantization_range_ctrl);