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Subject[PATCH v4 4/6] tuner-simple: allow setting mono radio mode
Date
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@maciej.szmigiero.name>
---
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 cf44d3657f55..01ab94681d2d 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)
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