V4L/DVB (7029): tda18271: provide a choice whether to perform rf cal on init or on first tune
If module option "cal" is set to 1, the ~22 sec rf tracking filter calibration
sequence will be invoked on startup. Otherwise, the calibration will take
place during the first tune.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/dvb/frontends/tda18271-fe.c b/drivers/media/dvb/frontends/tda18271-fe.c
index 8eb9a53..7c80516 100644
--- a/drivers/media/dvb/frontends/tda18271-fe.c
+++ b/drivers/media/dvb/frontends/tda18271-fe.c
@@ -27,6 +27,10 @@
MODULE_PARM_DESC(debug, "set debug level "
"(info=1, map=2, reg=4, adv=8, cal=16 (or-able))");
+int tda18271_cal_on_startup;
+module_param_named(cal, tda18271_cal_on_startup, int, 0644);
+MODULE_PARM_DESC(cal, "perform RF tracking filter calibration on startup");
+
static LIST_HEAD(tda18271_list);
static DEFINE_MUTEX(tda18271_list_mutex);
@@ -1177,6 +1181,10 @@
mutex_lock(&priv->lock);
tda18271_init_regs(fe);
+
+ if ((tda18271_cal_on_startup) && (priv->id == TDA18271HDC2))
+ tda18271_rf_cal_init(fe);
+
mutex_unlock(&priv->lock);
}