diff options
| -rw-r--r-- | drivers/media/radio/si470x/radio-si470x-common.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/media/radio/si470x/radio-si470x-common.c b/drivers/media/radio/si470x/radio-si470x-common.c index e0054e0f410d..6f0bf438be59 100644 --- a/drivers/media/radio/si470x/radio-si470x-common.c +++ b/drivers/media/radio/si470x/radio-si470x-common.c @@ -207,6 +207,15 @@ static int si470x_set_chan(struct si470x_device *radio, unsigned short chan) unsigned long time_left; bool timed_out = false; + retval = si470x_get_register(radio, POWERCFG); + if (retval) + return retval; + + if ((radio->registers[POWERCFG] & (POWERCFG_ENABLE|POWERCFG_DMUTE)) + != (POWERCFG_ENABLE|POWERCFG_DMUTE)) { + return 0; + } + /* start tuning */ radio->registers[CHANNEL] &= ~CHANNEL_CHAN; radio->registers[CHANNEL] |= CHANNEL_TUNE | chan; |