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Commit d16625e7 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
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[media] tuner-core: power up tuner when called with s_power(1) 



Drivers must be able to rely on s_power to power up subdevices.

Note that at this moment no driver attempts to power up tuners. This probably
isn't surprising since s_power(1) was never implemented in tuner-core.c until
now.

Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent a6cf90a9

drivers/media/video/tuner-core.c

+7 −3
Original line number Diff line number Diff line
@@ -1039,16 +1039,20 @@ static int tuner_s_radio(struct v4l2_subdev *sd) 
/**

 * tuner_s_power - controls the power state of the tuner

 * @sd: pointer to struct v4l2_subdev

 * @on: a zero value puts the tuner to sleep

 * @on: a zero value puts the tuner to sleep, non-zero wakes it up

 */

static int tuner_s_power(struct v4l2_subdev *sd, int on)

{

	struct tuner *t = to_tuner(sd);

	struct analog_demod_ops *analog_ops = &t->fe.ops.analog_ops;



	/* FIXME: Why this function don't wake the tuner if on != 0 ? */

	if (on)

	if (on) {

		if (t->standby && set_mode(t, t->mode) == 0) {

			tuner_dbg("Waking up tuner\n");

			set_freq(t, 0);

		}

		return 0;

	}



	tuner_dbg("Putting tuner to sleep\n");

	t->standby = true;