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[media] si2157: Add support for spectral inversion

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This is needed for PCTV 522e support.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Matthias Schwarzott 2014-07-15 16:34:36 -03:00 committed by Mauro Carvalho Chehab
parent c3b513bd69
commit 05024efe12
3 changed files with 9 additions and 0 deletions
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3
drivers/media/tuners/si2157.c
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@ -253,6 +253,8 @@ static int si2157_set_params(struct dvb_frontend *fe)
memcpy(cmd.args, "\x14\x00\x03\x07\x00\x00", 6);
cmd.args[4] = delivery_system | bandwidth;
if (s->inversion)
cmd.args[5] = 0x01;
cmd.wlen = 6;
cmd.rlen = 1;
ret = si2157_cmd_execute(s, &cmd);
@ -307,6 +309,7 @@ static int si2157_probe(struct i2c_client *client,
s->client = client;
s->fe = cfg->fe;
s->inversion = cfg->inversion;
mutex_init(&s->i2c_mutex);
/* check if the tuner is there */

5
drivers/media/tuners/si2157.h
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@ -29,6 +29,11 @@ struct si2157_config {
* frontend
*/
struct dvb_frontend *fe;
/*
* Spectral Inversion
*/
bool inversion;
};
#endif

1
drivers/media/tuners/si2157_priv.h
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@ -26,6 +26,7 @@ struct si2157 {
struct i2c_client *client;
struct dvb_frontend *fe;
bool active;
bool inversion;
};
/* firmare command struct */