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Commit 010b876a authored by Maciej S. Szmigiero's avatar Maciej S. Szmigiero Committed by Mauro Carvalho Chehab
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media: tuner-simple: allow setting mono radio mode 



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: default avatarMaciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent af16d0a1

drivers/media/tuners/tuner-simple.c

+3 −2
Original line number Diff line number Diff line
@@ -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)