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media: m88ds3103: Fix lock led support

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The new m88ds3101b demodulator version requires the highest bit of
register 0x11 be cleared after tuning to a new frequency to make the
lock output pin go high when a signal is found.  This pin is normally
connected to an indicator led.

Link: https://lore.kernel.org/linux-media/20220116112238.74171-1-micha@freedict.org
Signed-off-by: Michael Bunk <micha@freedict.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Michael Bunk 2022-01-16 11:22:35 +00:00 committed by Mauro Carvalho Chehab
parent bebfa3419a
commit c6ad2b9218
1 changed files with 7 additions and 0 deletions
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7
drivers/media/dvb-frontends/m88ds3103.c
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@ -1000,6 +1000,13 @@ static int m88ds3103_set_frontend(struct dvb_frontend *fe)
if (ret) if (ret)
goto err; goto err;
if (dev->chiptype == M88DS3103_CHIPTYPE_3103B) {
/* to light up the LOCK led */
ret = m88ds3103_update_bits(dev, 0x11, 0x80, 0x00);
if (ret)
goto err;
}
dev->delivery_system = c->delivery_system; dev->delivery_system = c->delivery_system;
return 0; return 0;