diff options
| author | Michael Krufky <mkrufky@linuxtv.org> | 2008-01-13 17:01:01 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-01-25 19:04:58 -0200 |
| commit | 518d87399baee908b0353bc0ef7d41c3c46295ec (patch) | |
| tree | 9d0c2cd42c6b533854616921fbbb18e108ec924c /drivers/media/dvb/frontends/tda18271-fe.c | |
| parent | 6bfa6657246013bf999fecda0874105441f6ecb5 (diff) | |
V4L/DVB (7027): tda18271: put the device in standby mode during sleep()
Add function, tda18271_set_standby_mode.
During sleep, enter standby mode with slave tuner output enabled,
loop through on and xtal oscillator on.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/dvb/frontends/tda18271-fe.c')
| -rw-r--r-- | drivers/media/dvb/frontends/tda18271-fe.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/drivers/media/dvb/frontends/tda18271-fe.c b/drivers/media/dvb/frontends/tda18271-fe.c index c254ac367e7..c8ab1fda1de 100644 --- a/drivers/media/dvb/frontends/tda18271-fe.c +++ b/drivers/media/dvb/frontends/tda18271-fe.c @@ -201,8 +201,7 @@ static int tda18271_rf_tracking_filters_correction(struct dvb_frontend *fe, u8 dc_over_dt, rf_tab; /* power up */ - regs[R_EP3] &= ~0xe0; /* sm = 0, sm_lt = 0, sm_xt = 0 */ - tda18271_write_regs(fe, R_EP3, 1); + tda18271_set_standby_mode(fe, 0, 0, 0); /* read die current temperature */ tm_current = tda18271_read_thermometer(fe); @@ -256,9 +255,7 @@ static int tda18271_por(struct dvb_frontend *fe) regs[R_EB21] |= 0x03; /* set agc2_gain to -6 dB */ /* POR mode */ - regs[R_EP3] &= ~0xe0; /* clear sm, sm_lt, sm_xt */ - regs[R_EP3] |= 0x80; /* sm = 1, sm_lt = 0, sm_xt = 0 */ - tda18271_write_regs(fe, R_EP3, 1); + tda18271_set_standby_mode(fe, 1, 0, 0); /* disable 1.5 MHz low pass filter */ regs[R_EB23] &= ~0x04; /* forcelp_fc2_en = 0 */ @@ -610,6 +607,9 @@ static int tda18271_init(struct dvb_frontend *fe) mutex_lock(&priv->lock); + /* power up */ + tda18271_set_standby_mode(fe, 0, 0, 0); + /* initialization */ tda18271_ir_cal_init(fe); @@ -953,6 +953,21 @@ fail: return ret; } +static int tda18271_sleep(struct dvb_frontend *fe) +{ + struct tda18271_priv *priv = fe->tuner_priv; + + mutex_lock(&priv->lock); + + /* standby mode w/ slave tuner output + * & loop thru & xtal oscillator on */ + tda18271_set_standby_mode(fe, 1, 0, 0); + + mutex_unlock(&priv->lock); + + return 0; +} + static int tda18271_release(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; @@ -1096,6 +1111,7 @@ static struct dvb_tuner_ops tda18271_tuner_ops = { .frequency_step = 62500 }, .init = tda18271_init, + .sleep = tda18271_sleep, .set_params = tda18271_set_params, .set_analog_params = tda18271_set_analog_params, .release = tda18271_release, |