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Commit 1140f919 authored by Philipp Zabel's avatar Philipp Zabel Committed by Mauro Carvalho Chehab
Browse files

[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: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent d747b806

drivers/media/i2c/tc358743.c

+17 −2
Original line number Diff line number Diff line
@@ -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 = {