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| author | Krzysztof Hałasa <khalasa@piap.pl> | 2021-07-26 13:49:30 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-08-04 15:43:52 +0300 |
| commit | 5cdd19bbad75f6cf1c44ac494b92a3b8d8826001 (patch) | |
| tree | aff822dabf4378e4dc77254f136d0f151eb6f5f0 | |
| parent | 7dee1030871a48d4f3c5a74227a4b4188463479a (diff) | |
| download | linux-5cdd19bbad75f6cf1c44ac494b92a3b8d8826001.tar.xz | |
media: TDA1997x: report -ENOLINK after disconnecting HDMI source
The TD1997x chip retains vper, hper and hsper register values when the
HDMI source is disconnected. Use a different means of checking if the
link is still valid.
Signed-off-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
| -rw-r--r-- | drivers/media/i2c/tda1997x.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/i2c/tda1997x.c b/drivers/media/i2c/tda1997x.c index 98b7c39e3e9b..6070aaf0b32e 100644 --- a/drivers/media/i2c/tda1997x.c +++ b/drivers/media/i2c/tda1997x.c @@ -1107,7 +1107,8 @@ tda1997x_detect_std(struct tda1997x_state *state, hper = io_read16(sd, REG_H_PER) & MASK_HPER; hsper = io_read16(sd, REG_HS_WIDTH) & MASK_HSWIDTH; v4l2_dbg(1, debug, sd, "Signal Timings: %u/%u/%u\n", vper, hper, hsper); - if (!vper || !hper || !hsper) + + if (!state->input_detect[0] && !state->input_detect[1]) return -ENOLINK; for (i = 0; v4l2_dv_timings_presets[i].bt.width; i++) { |