Commit 11fc9a4a authored by Devin Heitmueller's avatar Devin Heitmueller Committed by Mauro Carvalho Chehab
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V4L/DVB (9316): 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: default avatarDevin Heitmueller <devin.heitmueller@gmail.com>
Acked-by: default avatarSteven Toth <stoth@linuxtv.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 50eac6bc

drivers/media/dvb/frontends/s5h1411.c

+8 −2
Original line number Diff line number Diff line
@@ -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,

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