V4L/DVB (7212): tda18271: move rf calibration code from tda18271c1_tune into a new function

move rf calibration code from tda18271c1_tune into a new function,
tda18271c1_rf_tracking_filter_calibration

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 19 insertions, 11 deletions

diff --git a/drivers/media/dvb/frontends/tda18271-fe.c b/drivers/media/dvb/frontends/tda18271-fe.c
index 26042a977e4e..250899a90aa2 100644
--- a/drivers/media/dvb/frontends/tda18271-fe.c
+++ b/drivers/media/dvb/frontends/tda18271-fe.c
@@ -652,21 +652,13 @@ static int tda18271c2_tune(struct dvb_frontend *fe,
 
 /* ------------------------------------------------------------------ */
 
-static int tda18271c1_tune(struct dvb_frontend *fe,
-                           u32 ifc, u32 freq, u32 bw, u8 std, int radio)
+static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe,
+                                                     u32 freq, u32 bw)
 {
         struct tda18271_priv *priv = fe->tuner_priv;
         unsigned char *regs = priv->tda18271_regs;
         u32 N = 0;
 
-        tda18271_init(fe);
-
-        mutex_lock(&priv->lock);
-
-        tda_dbg("freq = %d, ifc = %d\n", freq, ifc);
-
-        /* RF tracking filter calibration */
-
         /* calculate bp filter */
         tda18271_calc_bp_filter(fe, &freq);
         tda18271_write_regs(fe, R_EP1, 1);
@@ -737,7 +729,7 @@ static int tda18271c1_tune(struct dvb_frontend *fe,
 
         regs[R_EB7]   = 0x40;
         tda18271_write_regs(fe, R_EB7, 1);
-        msleep(10);
+        msleep(10); /* pll locking */
 
         regs[R_EB20]  = 0xec;
         tda18271_write_regs(fe, R_EB20, 1);
@@ -752,6 +744,22 @@ static int tda18271c1_tune(struct dvb_frontend *fe,
         if (0 == tda18271_calc_rf_cal(fe, &freq))
                 tda18271_write_regs(fe, R_EB14, 1);
 
+        return 0;
+}
+
+static int tda18271c1_tune(struct dvb_frontend *fe,
+                           u32 ifc, u32 freq, u32 bw, u8 std, int radio)
+{
+        struct tda18271_priv *priv = fe->tuner_priv;
+
+        tda18271_init(fe);
+
+        mutex_lock(&priv->lock);
+
+        tda_dbg("freq = %d, ifc = %d\n", freq, ifc);
+
+        tda18271c1_rf_tracking_filter_calibration(fe, freq, bw);
+
         tda18271_channel_configuration(fe, ifc, freq, bw, std, radio);
 
         mutex_unlock(&priv->lock);