diff options
| author | Martin Bugge <marbugge@cisco.com> | 2014-01-24 17:50:04 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-02-04 15:57:00 +0400 |
| commit | 81ba0a4e0ba4f92573440b8c455fc0d30f111092 (patch) | |
| tree | 64d039d7a72576723508a6330360b235565312da /drivers | |
| parent | 933913da020d0a6099e00fbb652fb682996fba45 (diff) | |
| download | linux-81ba0a4e0ba4f92573440b8c455fc0d30f111092.tar.xz | |
[media] adv7842: pixelclock read-out
Incorrect registers used for pixelclock read-out.
Same registers as for adv7604 which actually gave an almost
correct read-out, even they are not documented for adv7842.
Corrected deep-color pixel-clock correction.
Signed-off-by: Martin Bugge <marbugge@cisco.com>
Cc: Mats Randgaard <matrandg@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/i2c/adv7842.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c index f7a4d79ea991..3aa1a7c750f1 100644 --- a/drivers/media/i2c/adv7842.c +++ b/drivers/media/i2c/adv7842.c @@ -1449,12 +1449,11 @@ static int adv7842_query_dv_timings(struct v4l2_subdev *sd, bt->width = (hdmi_read(sd, 0x07) & 0x0f) * 256 + hdmi_read(sd, 0x08); bt->height = (hdmi_read(sd, 0x09) & 0x0f) * 256 + hdmi_read(sd, 0x0a); - freq = (hdmi_read(sd, 0x06) * 1000000) + - ((hdmi_read(sd, 0x3b) & 0x30) >> 4) * 250000; - + freq = ((hdmi_read(sd, 0x51) << 1) + (hdmi_read(sd, 0x52) >> 7)) * 1000000; + freq += ((hdmi_read(sd, 0x52) & 0x7f) * 7813); if (is_hdmi(sd)) { /* adjust for deep color mode */ - freq = freq * 8 / (((hdmi_read(sd, 0x0b) & 0xc0) >> 5) + 8); + freq = freq * 8 / (((hdmi_read(sd, 0x0b) & 0xc0) >> 6) * 2 + 8); } bt->pixelclock = freq; bt->hfrontporch = (hdmi_read(sd, 0x20) & 0x03) * 256 + |