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Commit 0f96251e authored by Michael Krufky's avatar Michael Krufky Committed by Mauro Carvalho Chehab
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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: default avatarMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 839c6c96

drivers/media/dvb/frontends/tda18271-fe.c

+8 −0
Original line number Original line Diff line number Diff line
@@ -27,6 +27,10 @@ module_param_named(debug, tda18271_debug, int, 0644); 
MODULE_PARM_DESC(debug, "set debug level "

MODULE_PARM_DESC(debug, "set debug level "

		 "(info=1, map=2, reg=4, adv=8, cal=16 (or-able))");

		 "(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 LIST_HEAD(tda18271_list);

static DEFINE_MUTEX(tda18271_list_mutex);

static DEFINE_MUTEX(tda18271_list_mutex);
@@ -1177,6 +1181,10 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr, 




		mutex_lock(&priv->lock);

		mutex_lock(&priv->lock);

		tda18271_init_regs(fe);

		tda18271_init_regs(fe);



		if ((tda18271_cal_on_startup) && (priv->id == TDA18271HDC2))

			tda18271_rf_cal_init(fe);



		mutex_unlock(&priv->lock);

		mutex_unlock(&priv->lock);

	}

	}