V4L/DVB (13216): tda18271: initialize tuner during set_config if rf_cal_on_startup is set

If rf_cal_on_startup is enabled in the structure passed into
tda18271_set_config, and the cal module option isn't disabled,
then we should run the initialization and calibration procedures
during the tda18271_set_config function call.

Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/common/tuners/tda18271-fe.c

@@ -1185,10 +1185,10 @@ static int tda18271_get_id(struct dvb_frontend *fe)
 	return ret;
 }
 
-static int tda18271_set_config(struct dvb_frontend *fe, void *priv_cfg)
+static int tda18271_setup_configuration(struct dvb_frontend *fe,
+					struct tda18271_config *cfg)
 {
 	struct tda18271_priv *priv = fe->tuner_priv;
-	struct tda18271_config *cfg = (struct tda18271_config *) priv_cfg;
 
 	priv->gate = (cfg) ? cfg->gate : TDA18271_GATE_AUTO;
 	priv->role = (cfg) ? cfg->role : TDA18271_MASTER;
@@ -1205,6 +1205,28 @@ static int tda18271_set_config(struct dvb_frontend *fe, void *priv_cfg)
 	return 0;
 }
 
+static int tda18271_set_config(struct dvb_frontend *fe, void *priv_cfg)
+{
+	struct tda18271_config *cfg = (struct tda18271_config *) priv_cfg;
+	int rf_cal_on_startup;
+
+	tda18271_setup_configuration(fe, cfg);
+
+	/* tda18271_cal_on_startup == -1 when cal module option is unset */
+	if (tda18271_cal_on_startup == -1) {
+		/* honor configuration setting */
+		rf_cal_on_startup =
+			((cfg) && (cfg->rf_cal_on_startup)) ? 1 : 0;
+	} else {
+		/* module option overrides configuration setting */
+		rf_cal_on_startup = tda18271_cal_on_startup;
+	}
+	if (rf_cal_on_startup)
+		tda18271_init(fe);
+
+	return 0;
+}
+
 static struct dvb_tuner_ops tda18271_tuner_ops = {
 	.info = {
 		.name = "NXP TDA18271HD",
@@ -1244,7 +1266,7 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 
 		fe->tuner_priv = priv;
 
-		tda18271_set_config(fe, cfg);
+		tda18271_setup_configuration(fe, cfg);
 
 		/* tda18271_cal_on_startup == -1 when cal
 		 * module option is unset */