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V4L/DVB (9316): s5h1411: Power down s5h1411 when not in use

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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>
This commit is contained in:
Devin Heitmueller 2008-10-20 10:33:22 -03:00 committed by Mauro Carvalho Chehab
parent 50eac6bc46
commit 11fc9a4a44
1 changed files with 8 additions and 2 deletions
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10
drivers/media/dvb/frontends/s5h1411.c
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@ -554,7 +554,7 @@ 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;
@ -570,6 +570,11 @@ 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;
@ -619,7 +624,7 @@ 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++)
@ -889,6 +894,7 @@ 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,