diff options
| author | Philipp Zabel | 2015-07-17 17:26:45 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2015-07-22 16:27:38 +0200 |
| commit | 1140f919f807b6d5a259ecfca88022da0e5340cb (patch) | |
| tree | 8be99a9be12ccb98c9cbe5cab5bd3248cf036874 /drivers/media/i2c | |
| parent | [media] tc358743: add direct interrupt handling (diff) | |
| download | kernel-qcow2-linux-1140f919f807b6d5a259ecfca88022da0e5340cb.tar.gz kernel-qcow2-linux-1140f919f807b6d5a259ecfca88022da0e5340cb.tar.xz kernel-qcow2-linux-1140f919f807b6d5a259ecfca88022da0e5340cb.zip | |
[media] tc358743: allow event subscription
This is useful to subscribe to HDMI hotplug events via the
V4L2_CID_DV_RX_POWER_PRESENT control.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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')
| -rw-r--r-- | drivers/media/i2c/tc358743.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c index 934f6e17e06d..d0dd83d7a38e 100644 --- a/drivers/media/i2c/tc358743.c +++ b/drivers/media/i2c/tc358743.c @@ -40,6 +40,7 @@ #include <media/v4l2-dv-timings.h> #include <media/v4l2-device.h> #include <media/v4l2-ctrls.h> +#include <media/v4l2-event.h> #include <media/v4l2-of.h> #include <media/tc358743.h> @@ -859,8 +860,7 @@ static void tc358743_format_change(struct v4l2_subdev *sd) &timings, false); } - v4l2_subdev_notify(sd, V4L2_DEVICE_NOTIFY_EVENT, - (void *)&tc358743_ev_fmt); + v4l2_subdev_notify_event(sd, &tc358743_ev_fmt); } static void tc358743_init_interrupts(struct v4l2_subdev *sd) @@ -1317,6 +1317,19 @@ static irqreturn_t tc358743_irq_handler(int irq, void *dev_id) return handled ? IRQ_HANDLED : IRQ_NONE; } +static int tc358743_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh, + struct v4l2_event_subscription *sub) +{ + switch (sub->type) { + case V4L2_EVENT_SOURCE_CHANGE: + return v4l2_src_change_event_subdev_subscribe(sd, fh, sub); + case V4L2_EVENT_CTRL: + return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub); + default: + return -EINVAL; + } +} + /* --------------- VIDEO OPS --------------- */ static int tc358743_g_input_status(struct v4l2_subdev *sd, u32 *status) @@ -1604,6 +1617,8 @@ static const struct v4l2_subdev_core_ops tc358743_core_ops = { .s_register = tc358743_s_register, #endif .interrupt_service_routine = tc358743_isr, + .subscribe_event = tc358743_subscribe_event, + .unsubscribe_event = v4l2_event_subdev_unsubscribe, }; static const struct v4l2_subdev_video_ops tc358743_video_ops = { |