For some types of tuners (Philips FMD1216ME(X) MK3 currently) we know that letting TDA9887 output port 1 remain high (inactive) will switch FM radio to mono mode. Let's make use of this functionality - nothing changes for the default stereo radio mode. Tested on a Medion 95700 board which has a FMD1216ME tuner. Signed-off-by: Maciej S. Szmigiero <mail@xxxxxxxxxxxxxxxxxxxxx> --- drivers/media/tuners/tuner-simple.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/media/tuners/tuner-simple.c b/drivers/media/tuners/tuner-simple.c index 36b88f820239..29c1473f2e9f 100644 --- a/drivers/media/tuners/tuner-simple.c +++ b/drivers/media/tuners/tuner-simple.c @@ -670,6 +670,7 @@ static int simple_set_radio_freq(struct dvb_frontend *fe, int rc, j; struct tuner_params *t_params; unsigned int freq = params->frequency; + bool mono = params->audmode == V4L2_TUNER_MODE_MONO; tun = priv->tun; @@ -736,8 +737,8 @@ static int simple_set_radio_freq(struct dvb_frontend *fe, config |= TDA9887_PORT2_ACTIVE; if (t_params->intercarrier_mode) config |= TDA9887_INTERCARRIER; -/* if (t_params->port1_set_for_fm_mono) - config &= ~TDA9887_PORT1_ACTIVE;*/ + if (t_params->port1_set_for_fm_mono && mono) + config &= ~TDA9887_PORT1_ACTIVE; if (t_params->fm_gain_normal) config |= TDA9887_GAIN_NORMAL; if (t_params->radio_if == 2)
