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authorDevin Heitmueller <devin.heitmueller@gmail.com>2008-10-20 10:33:22 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-21 14:31:06 -0200
commit11fc9a4a440112b5afc1a99d86ba92d70205a688 (patch)
tree1415f3acdd905fde9775372929d39c085215a894 /drivers/media
parent50eac6bc466f69e1ecb3a1b64346ed7b979547ac (diff)
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: Devin Heitmueller <devin.heitmueller@gmail.com> Acked-by: Steven Toth <stoth@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/dvb/frontends/s5h1411.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/media/dvb/frontends/s5h1411.c b/drivers/media/dvb/frontends/s5h1411.c
index b9ac6d35a1eb..40644aacffcb 100644
--- a/drivers/media/dvb/frontends/s5h1411.c
+++ b/drivers/media/dvb/frontends/s5h1411.c
@@ -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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