From 05024efe1264c3379135d7223f2c84c8f7ef2172 Mon Sep 17 00:00:00 2001 From: Matthias Schwarzott Date: Tue, 15 Jul 2014 16:34:36 -0300 Subject: [PATCH] [media] si2157: Add support for spectral inversion This is needed for PCTV 522e support. Signed-off-by: Matthias Schwarzott Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/tuners/si2157.c | 3 +++ drivers/media/tuners/si2157.h | 5 +++++ drivers/media/tuners/si2157_priv.h | 1 + 3 files changed, 9 insertions(+) diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c index 4730f69cac01..f6199832b4cc 100644 --- a/drivers/media/tuners/si2157.c +++ b/drivers/media/tuners/si2157.c @@ -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 */ diff --git a/drivers/media/tuners/si2157.h b/drivers/media/tuners/si2157.h index 4465c46baf0e..6da4d5d1c817 100644 --- a/drivers/media/tuners/si2157.h +++ b/drivers/media/tuners/si2157.h @@ -29,6 +29,11 @@ struct si2157_config { * frontend */ struct dvb_frontend *fe; + + /* + * Spectral Inversion + */ + bool inversion; }; #endif diff --git a/drivers/media/tuners/si2157_priv.h b/drivers/media/tuners/si2157_priv.h index db79f3c40e4c..3ddab5e6b500 100644 --- a/drivers/media/tuners/si2157_priv.h +++ b/drivers/media/tuners/si2157_priv.h @@ -26,6 +26,7 @@ struct si2157 { struct i2c_client *client; struct dvb_frontend *fe; bool active; + bool inversion; }; /* firmare command struct */ -- 2.20.1