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

1 files changed, 15 insertions, 36 deletions

diff --git a/drivers/media/common/tuners/tda18271-fe.c b/drivers/media/common/tuners/tda18271-fe.c
index 8b934f48b6f..cae0df1748f 100644
--- a/drivers/media/common/tuners/tda18271-fe.c
+++ b/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;
         }