From 1140f919f807b6d5a259ecfca88022da0e5340cb Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Fri, 17 Jul 2015 12:26:45 -0300 Subject: [PATCH] [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 Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/tc358743.c | 19 +++++++++++++++++-- 1 file 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 #include #include +#include #include #include @@ -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 = { -- 2.39.5