Commit 2be21e68 authored by Sowjanya Komatineni's avatar Sowjanya Komatineni Committed by Mauro Carvalho Chehab
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media: tegra-video: Add support for V4L2_EVENT_SOURCE_CHANGE 



Current implementation uses v4l2_ctrl_subscribe_event() and this
does not handle V4L2_EVENT_SOURCE_CHANGE.

So, update driver to handle V4L2_EVENT_SOURCE_CHANGE.

Signed-off-by: default avatarSowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent 6a4d30ce

drivers/staging/media/tegra-video/vi.c

+13 −1
Original line number Diff line number Diff line
@@ -642,6 +642,18 @@ static int tegra_channel_set_subdev_active_fmt(struct tegra_vi_channel *chan) 
	return 0;

}



static int

tegra_channel_subscribe_event(struct v4l2_fh *fh,

			      const struct v4l2_event_subscription *sub)

{

	switch (sub->type) {

	case V4L2_EVENT_SOURCE_CHANGE:

		return v4l2_event_subscribe(fh, sub, 4, NULL);

	}



	return v4l2_ctrl_subscribe_event(fh, sub);

}



static int tegra_channel_g_selection(struct file *file, void *priv,

				     struct v4l2_selection *sel)

{
@@ -904,7 +916,7 @@ static const struct v4l2_ioctl_ops tegra_channel_ioctl_ops = { 
	.vidioc_expbuf			= vb2_ioctl_expbuf,

	.vidioc_streamon		= vb2_ioctl_streamon,

	.vidioc_streamoff		= vb2_ioctl_streamoff,

	.vidioc_subscribe_event		= v4l2_ctrl_subscribe_event,

	.vidioc_subscribe_event		= tegra_channel_subscribe_event,

	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,

	.vidioc_g_selection		= tegra_channel_g_selection,

	.vidioc_s_selection		= tegra_channel_s_selection,