From: Hans Verkuil Date: Sat, 25 Jun 2011 13:24:49 +0000 (-0300) Subject: [media] tuner-core: power up tuner when called with s_power(1) X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d16625e788b8871163ad991851ffba5f64c06d43;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git [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: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c index 1e7505eb32e9..39af999112f9 100644 --- a/drivers/media/video/tuner-core.c +++ b/drivers/media/video/tuner-core.c @@ -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;