[media] xc5000: Add support for get_if_frequency

This is needed for devices with DRX-K and xc5000.

Tested with a HVR 930C hardware.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/common/tuners/xc5000.c

@@ -968,6 +968,14 @@ static int xc5000_get_frequency(struct dvb_frontend *fe, u32 *freq)
 	return 0;
 }
 
+static int xc5000_get_if_frequency(struct dvb_frontend *fe, u32 *freq)
+{
+	struct xc5000_priv *priv = fe->tuner_priv;
+	dprintk(1, "%s()\n", __func__);
+	*freq = priv->if_khz * 1000;
+	return 0;
+}
+
 static int xc5000_get_bandwidth(struct dvb_frontend *fe, u32 *bw)
 {
 	struct xc5000_priv *priv = fe->tuner_priv;
@@ -1108,6 +1116,7 @@ static const struct dvb_tuner_ops xc5000_tuner_ops = {
 	.set_params	   = xc5000_set_params,
 	.set_analog_params = xc5000_set_analog_params,
 	.get_frequency	   = xc5000_get_frequency,
+	.get_if_frequency  = xc5000_get_if_frequency,
 	.get_bandwidth	   = xc5000_get_bandwidth,
 	.get_status	   = xc5000_get_status
 };