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Commit 119a7c7e authored by Michael Krufky's avatar Michael Krufky Committed by Mauro Carvalho Chehab
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V4L/DVB (8035): tda18271: dont touch EB14 if rf_cal lookup is out of range 



The TDA18271HD/C1 rf_cal map lookup is expected to go out of range outside
of the frequency window 41 MHz - 61.1 MHz.  In these cases, the internal
RF tracking filters calibration mechanism is used.

Signed-off-by: default avatarMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 44e645c2

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

+9 −1
Original line number Diff line number Diff line
@@ -649,9 +649,17 @@ int tda18271_calc_rf_cal(struct dvb_frontend *fe, u32 *freq) 
	u8 val;



	int ret = tda18271_lookup_map(fe, RF_CAL, freq, &val);

	/* The TDA18271HD/C1 rf_cal map lookup is expected to go out of range

	 * for frequencies above 61.1 MHz.  In these cases, the internal RF

	 * tracking filters calibration mechanism is used.

	 *

	 * There is no need to warn the user about this.

	 */

	if (ret < 0)

		goto fail;



	regs[R_EB14] = val;



fail:

	return ret;

}