V4L/DVB (13218): tda18271: consolidate common code for calibration on startup determination

consolidate common code used to determine if calibration on startup is needed
Signed-off-by: NMichael Krufky <mkrufky@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

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

@@ -1205,23 +1205,23 @@ static int tda18271_setup_configuration(struct dvb_frontend *fe,
 	return 0;
 }
 
+static inline int tda18271_need_cal_on_startup(struct tda18271_config *cfg)
+{
+	/* tda18271_cal_on_startup == -1 when cal module option is unset */
+	return ((tda18271_cal_on_startup == -1) ?
+		/* honor configuration setting */
+		((cfg) && (cfg->rf_cal_on_startup)) :
+		/* module option overrides configuration setting */
+		(tda18271_cal_on_startup)) ? 1 : 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)
+	if (tda18271_need_cal_on_startup(cfg))
 		tda18271_init(fe);
 
 	return 0;
@@ -1249,7 +1249,7 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 				     struct tda18271_config *cfg)
 {
 	struct tda18271_priv *priv = NULL;
-	int instance, rf_cal_on_startup = 0;
+	int instance;
 
 	mutex_lock(&tda18271_list_mutex);
 
@@ -1266,17 +1266,6 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 
 		tda18271_setup_configuration(fe, cfg);
 
-		/* tda18271_cal_on_startup == -1 when cal
-		 * module option is unset */
-		if (tda18271_cal_on_startup == -1) {
-			/* honor attach-time configuration */
-			rf_cal_on_startup =
-				((cfg) && (cfg->rf_cal_on_startup)) ? 1 : 0;
-		} else {
-			/* module option overrides attach configuration */
-			rf_cal_on_startup = tda18271_cal_on_startup;
-		}
-
 		priv->cal_initialized = false;
 		mutex_init(&priv->lock);
 
@@ -1289,7 +1278,8 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 		mutex_lock(&priv->lock);
 		tda18271_init_regs(fe);
 
-		if ((rf_cal_on_startup) && (priv->id == TDA18271HDC2))
+		if ((tda18271_need_cal_on_startup(cfg)) &&
+		    (priv->id == TDA18271HDC2))
 			tda18271c2_rf_cal_init(fe);
 
 		mutex_unlock(&priv->lock);
@@ -1313,19 +1303,8 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 				priv->output_opt = cfg->output_opt;
 			if (cfg->std_map)
 				tda18271_update_std_map(fe, cfg->std_map);
-
-			/* tda18271_cal_on_startup == -1 when cal
-			 * module option is unset */
-			if (tda18271_cal_on_startup == -1) {
-				/* honor attach-time configuration */
-				rf_cal_on_startup =
-					(cfg->rf_cal_on_startup) ? 1 : 0;
-			} else {
-				/* module option overrides attach config */
-				rf_cal_on_startup = tda18271_cal_on_startup;
-			}
 		}
-		if (rf_cal_on_startup)
+		if (tda18271_need_cal_on_startup(cfg))
 			tda18271_init(fe);
 		break;
 	}