diff options
| author | Michael Krufky <mkrufky@kernellabs.com> | 2008-05-11 17:46:52 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-09-19 05:13:39 +0200 |
| commit | 81259f210ef09c6e6e643c7cecc803a7083f970e (patch) | |
| tree | bdbc56e3d0148f2c37c86cb47ddaf89e1aaa11ed /drivers/media/common/tuners/tda18271-fe.c | |
| parent | V4L/DVB (12859): go7007: semaphore -> mutex conversion (diff) | |
| download | linux-81259f210ef09c6e6e643c7cecc803a7083f970e.tar.xz linux-81259f210ef09c6e6e643c7cecc803a7083f970e.zip | |
V4L/DVB (12861): tda18271: add support for additional low-power standby modes
By default, the driver enters standby mode with slave tuner output
loop thru enabled and xtal oscillator on.
Not all designs require that slave tuner output loop thru and
xtal oscillator remain active while in standby mode, so two
additional standby modes have been added:
- standby mode with xtal oscillator on (loop thru off)
- total power off
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/common/tuners/tda18271-fe.c')
| -rw-r--r-- | drivers/media/common/tuners/tda18271-fe.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/media/common/tuners/tda18271-fe.c b/drivers/media/common/tuners/tda18271-fe.c index bc4b004ba7db..64b935f91577 100644 --- a/drivers/media/common/tuners/tda18271-fe.c +++ b/drivers/media/common/tuners/tda18271-fe.c @@ -1017,9 +1017,17 @@ static int tda18271_sleep(struct dvb_frontend *fe) mutex_lock(&priv->lock); - /* standby mode w/ slave tuner output - * & loop thru & xtal oscillator on */ - ret = tda18271_set_standby_mode(fe, 1, 0, 0); + switch (priv->standby_mode) { + case TDA18271_STANDBY_POWER_OFF: + ret = tda18271_set_standby_mode(fe, 1, 1, 1); + break; + case TDA18271_STANDBY_XT_ON: + ret = tda18271_set_standby_mode(fe, 1, 1, 0); + break; + case TDA18271_STANDBY_LT_XT_ON: + default: + ret = tda18271_set_standby_mode(fe, 1, 0, 0); + } mutex_unlock(&priv->lock); @@ -1199,6 +1207,8 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr, priv->gate = (cfg) ? cfg->gate : TDA18271_GATE_AUTO; priv->role = (cfg) ? cfg->role : TDA18271_MASTER; priv->config = (cfg) ? cfg->config : 0; + priv->standby_mode = (cfg) ? + cfg->standby_mode : TDA18271_STANDBY_LT_XT_ON; /* tda18271_cal_on_startup == -1 when cal * module option is unset */ |