diff options
| author | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-01-06 13:52:43 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-01-10 12:05:13 +0400 |
| commit | 2276bf70a7433c2afec541257eab28a43ed6c9cf (patch) | |
| tree | 6b3ca891415c16a5d0bb7d4563a8ea447fe443a3 /drivers/media/tuners/tuner-xc2028.c | |
| parent | ebf044f46f138b2c034c544b6cb79e563f1f21fa (diff) | |
| download | linux-2276bf70a7433c2afec541257eab28a43ed6c9cf.tar.xz | |
[media] tuner-xc2028: Don't read status if device is powered down
That removes those timeout errors:
[ 3675.930940] xc2028 19-0061: Device is Xceive 3028 version 1.0, firmware version 2.7
[ 3676.060487] xc2028 19-0061: divisor= 00 00 8d d0 (freq=567.250)
[ 3676.349449] xc2028 19-0061: Putting xc2028/3028 into poweroff mode.
[ 3698.247645] xc2028 19-0061: xc2028_get_reg 0002 called
[ 3698.253276] em2860 #0: I2C transfer timeout on writing to addr 0xc2
[ 3698.253301] xc2028 19-0061: i2c input error: rc = -121 (should be 2)
[ 3698.253327] xc2028 19-0061: xc2028_signal called
[ 3698.253339] xc2028 19-0061: xc2028_get_reg 0002 called
[ 3698.259283] em2860 #0: I2C transfer timeout on writing to addr 0xc2
[ 3698.259312] xc2028 19-0061: i2c input error: rc = -121 (should be 2)
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/tuners/tuner-xc2028.c')
| -rw-r--r-- | drivers/media/tuners/tuner-xc2028.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/media/tuners/tuner-xc2028.c b/drivers/media/tuners/tuner-xc2028.c index 75afab718ba6..cca508d4aafb 100644 --- a/drivers/media/tuners/tuner-xc2028.c +++ b/drivers/media/tuners/tuner-xc2028.c @@ -267,6 +267,7 @@ static int check_device_status(struct xc2028_data *priv) case XC2028_WAITING_FIRMWARE: return -EAGAIN; case XC2028_ACTIVE: + return 1; case XC2028_SLEEP: return 0; case XC2028_NODEV: @@ -913,6 +914,12 @@ static int xc2028_signal(struct dvb_frontend *fe, u16 *strength) if (rc < 0) return rc; + /* If the device is sleeping, no channel is tuned */ + if (!rc) { + *strength = 0; + return 0; + } + mutex_lock(&priv->lock); /* Sync Lock Indicator */ @@ -960,6 +967,12 @@ static int xc2028_get_afc(struct dvb_frontend *fe, s32 *afc) if (rc < 0) return rc; + /* If the device is sleeping, no channel is tuned */ + if (!rc) { + *afc = 0; + return 0; + } + mutex_lock(&priv->lock); /* Sync Lock Indicator */ @@ -1277,12 +1290,12 @@ static int xc2028_sleep(struct dvb_frontend *fe) if (rc < 0) return rc; - /* Avoid firmware reload on slow devices or if PM disabled */ - if (no_poweroff || priv->ctrl.disable_power_mgmt) + /* Device is already in sleep mode */ + if (!rc) return 0; - /* Device is already in sleep mode */ - if (priv->state == XC2028_SLEEP) + /* Avoid firmware reload on slow devices or if PM disabled */ + if (no_poweroff || priv->ctrl.disable_power_mgmt) return 0; tuner_dbg("Putting xc2028/3028 into poweroff mode.\n"); |