diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2014-11-07 15:34:56 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-11-11 13:58:25 +0300 |
| commit | c81285ae4780e5df83f191f545c156435fdb01ba (patch) | |
| tree | bc4195e69438d804f85e6ccba7eab85f2addac58 /drivers/media/i2c/adv7511.c | |
| parent | c909e5ba6b1d79edfa809150da36a2c0c9cb095e (diff) | |
| download | linux-c81285ae4780e5df83f191f545c156435fdb01ba.tar.xz | |
[media] adv7511: fix G/S_EDID behavior
This fixes the v4l2-compliance failures.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/i2c/adv7511.c')
| -rw-r--r-- | drivers/media/i2c/adv7511.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/media/i2c/adv7511.c b/drivers/media/i2c/adv7511.c index f98acf4aafd4..8acc8c5d67d7 100644 --- a/drivers/media/i2c/adv7511.c +++ b/drivers/media/i2c/adv7511.c @@ -779,21 +779,28 @@ static int adv7511_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) { struct adv7511_state *state = get_adv7511_state(sd); + memset(edid->reserved, 0, sizeof(edid->reserved)); + if (edid->pad != 0) return -EINVAL; - if ((edid->blocks == 0) || (edid->blocks > 256)) - return -EINVAL; - if (!state->edid.segments) { - v4l2_dbg(1, debug, sd, "EDID segment 0 not found\n"); - return -ENODATA; + + if (edid->start_block == 0 && edid->blocks == 0) { + edid->blocks = state->edid.segments * 2; + return 0; } + + if (state->edid.segments == 0) + return -ENODATA; + if (edid->start_block >= state->edid.segments * 2) - return -E2BIG; - if ((edid->blocks + edid->start_block) >= state->edid.segments * 2) + return -EINVAL; + + if (edid->start_block + edid->blocks > state->edid.segments * 2) edid->blocks = state->edid.segments * 2 - edid->start_block; memcpy(edid->edid, &state->edid.data[edid->start_block * 128], 128 * edid->blocks); + return 0; } |