[patch 37/57] DVB: s5h1411: Power down s5h1411 when not in use

[Greg KH]

2.6.27-stable review patch.  If anyone has any objections, please let us know.

------------------
From: Devin Heitmueller <devin.heitmueller@xxxxxxxxx>

cherry picked from commit 11fc9a4a440112b5afc1a99d86ba92d70205a688

DVB: s5h1411: Power down s5h1411 when not in use

Power down the s5h1411 demodulator when not in use
(on the Pinnacle 801e, this brings idle power from
123ma down to 84ma).

Signed-off-by: Devin Heitmueller <devin.heitmueller@xxxxxxxxx>
Acked-by: Steven Toth <stoth@xxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Michael Krufky <mkrufky@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 drivers/media/dvb/frontends/s5h1411.c |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

--- a/drivers/media/dvb/frontends/s5h1411.c
+++ b/drivers/media/dvb/frontends/s5h1411.c
@@ -549,7 +549,7 @@ static int s5h1411_set_gpio(struct dvb_f
 		return s5h1411_writereg(state, S5H1411_I2C_TOP_ADDR, 0xe0, val);
 }
 
-static int s5h1411_sleep(struct dvb_frontend *fe, int enable)
+static int s5h1411_set_powerstate(struct dvb_frontend *fe, int enable)
 {
 	struct s5h1411_state *state = fe->demodulator_priv;
 
@@ -565,6 +565,11 @@ static int s5h1411_sleep(struct dvb_fron
 	return 0;
 }
 
+static int s5h1411_sleep(struct dvb_frontend *fe)
+{
+	return s5h1411_set_powerstate(fe, 1);
+}
+
 static int s5h1411_register_reset(struct dvb_frontend *fe)
 {
 	struct s5h1411_state *state = fe->demodulator_priv;
@@ -614,7 +619,7 @@ static int s5h1411_init(struct dvb_front
 
 	dprintk("%s()\n", __func__);
 
-	s5h1411_sleep(fe, 0);
+	s5h1411_set_powerstate(fe, 0);
 	s5h1411_register_reset(fe);
 
 	for (i = 0; i < ARRAY_SIZE(init_tab); i++)
@@ -878,6 +883,7 @@ static struct dvb_frontend_ops s5h1411_o
 	},
 
 	.init                 = s5h1411_init,
+	.sleep                = s5h1411_sleep,
 	.i2c_gate_ctrl        = s5h1411_i2c_gate_ctrl,
 	.set_frontend         = s5h1411_set_frontend,
 	.get_frontend         = s5h1411_get_frontend,

-- 
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