DVB: s5h1411: Power down s5h1411 when not in use

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@gmail.com>
Acked-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/media/dvb/frontends/s5h1411.c b/drivers/media/dvb/frontends/s5h1411.c
index 5b68c481f83af92f57b5e7898bac5c47f91b6674..a92ee16630864bbdb699524ba45c493699a87b6f 100644 (file)
--- 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_frontend *fe, int enable)
                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_frontend *fe, int enable)
        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_frontend *fe)
 
        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_ops = {
        },
 
        .init                 = s5h1411_init,
+       .sleep                = s5h1411_sleep,
        .i2c_gate_ctrl        = s5h1411_i2c_gate_ctrl,
        .set_frontend         = s5h1411_set_frontend,
        .get_frontend         = s5h1411_get_frontend,