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Commit 483deb0f authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
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V4L/DVB (4935): Added the capability of selecting fm gain by tuner



Some tuners require using cGainNormal instead of cGainLow for
high sensibility on FM reception.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent cefccc80
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+2 −0
Original line number Diff line number Diff line
@@ -467,6 +467,8 @@ static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
			config |= TDA9887_INTERCARRIER;
/*		if (params->port1_set_for_fm_mono)
			config &= ~TDA9887_PORT1_ACTIVE;*/
		if (params->fm_gain_normal)
			config |= TDA9887_GAIN_NORMAL;
		i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
	}
	if (4 != (rc = i2c_master_send(c,buffer,4)))
+4 −0
Original line number Diff line number Diff line
@@ -50,6 +50,10 @@ struct tuner_params {
	   sensitivity. If this setting is 1, then set PORT2 to 1 to
	   get proper FM reception. */
	unsigned int port2_fm_high_sensitivity:1;
	/* Some Philips tuners use tda9887 cGainNormal to select the FM radio
	   sensitivity. If this setting is 1, e register will use cGainNormal
	   instead of cGainLow. */
	unsigned int fm_gain_normal:1;
	/* Most tuners with a tda9887 use QSS mode. Some (cheaper) tuners
	   use Intercarrier mode. If this setting is 1, then the tuner
	   needs to be set to intercarrier mode. */