diff options
| author | Sowjanya Komatineni <skomatineni@nvidia.com> | 2020-12-11 18:02:35 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-01-04 12:57:39 +0100 |
| commit | 52b21a0aed900b99b4fc5ee3d71d55d36e7f4621 (patch) | |
| tree | 8236e0e68320e2f549d0802141faa896694390cd /drivers/staging | |
| parent | 4281d115a4eba3b7767a214ed09613c2e1f0c4ea (diff) | |
| download | linux-stable-52b21a0aed900b99b4fc5ee3d71d55d36e7f4621.tar.gz linux-stable-52b21a0aed900b99b4fc5ee3d71d55d36e7f4621.tar.bz2 linux-stable-52b21a0aed900b99b4fc5ee3d71d55d36e7f4621.zip | |
media: tegra-video: Add support for EDID ioctl ops
This patch adds support for EDID get and set v4l2 ioctl ops to use
with HDMI to CSI bridges.
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/media/tegra-video/vi.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c index d01e88de6b31..bc38136eae35 100644 --- a/drivers/staging/media/tegra-video/vi.c +++ b/drivers/staging/media/tegra-video/vi.c @@ -721,6 +721,32 @@ static int tegra_channel_s_selection(struct file *file, void *fh, return ret; } +static int tegra_channel_g_edid(struct file *file, void *fh, + struct v4l2_edid *edid) +{ + struct tegra_vi_channel *chan = video_drvdata(file); + struct v4l2_subdev *subdev; + + subdev = tegra_channel_get_remote_source_subdev(chan); + if (!v4l2_subdev_has_op(subdev, pad, get_edid)) + return -ENOTTY; + + return v4l2_subdev_call(subdev, pad, get_edid, edid); +} + +static int tegra_channel_s_edid(struct file *file, void *fh, + struct v4l2_edid *edid) +{ + struct tegra_vi_channel *chan = video_drvdata(file); + struct v4l2_subdev *subdev; + + subdev = tegra_channel_get_remote_source_subdev(chan); + if (!v4l2_subdev_has_op(subdev, pad, set_edid)) + return -ENOTTY; + + return v4l2_subdev_call(subdev, pad, set_edid, edid); +} + static int tegra_channel_g_dv_timings(struct file *file, void *fh, struct v4l2_dv_timings *timings) { @@ -873,6 +899,8 @@ static const struct v4l2_ioctl_ops tegra_channel_ioctl_ops = { .vidioc_unsubscribe_event = v4l2_event_unsubscribe, .vidioc_g_selection = tegra_channel_g_selection, .vidioc_s_selection = tegra_channel_s_selection, + .vidioc_g_edid = tegra_channel_g_edid, + .vidioc_s_edid = tegra_channel_s_edid, .vidioc_g_dv_timings = tegra_channel_g_dv_timings, .vidioc_s_dv_timings = tegra_channel_s_dv_timings, .vidioc_query_dv_timings = tegra_channel_query_dv_timings, |