Some tuners produce inverted spectrum, but the si2168 is not
currently set up to accept it. This adds an optional parameter
to set the frontend up to receive inverted spectrum.
Parameter is optional and only boards who enable inversion
will utilize this.
Signed-off-by: Brad Love <brad@xxxxxxxxxxxxxxxx>
---
drivers/media/dvb-frontends/si2168.c | 2 ++
drivers/media/dvb-frontends/si2168.h | 3 +++
2 files changed, 5 insertions(+)
diff --git a/drivers/media/dvb-frontends/si2168.c b/drivers/media/dvb-frontends/si2168.c
index c041e79..46a597f 100644
--- a/drivers/media/dvb-frontends/si2168.c
+++ b/drivers/media/dvb-frontends/si2168.c
@@ -339,6 +339,8 @@ static int si2168_set_frontend(struct dvb_frontend *fe)
memcpy(cmd.args, "\x14\x00\x0a\x10\x00\x00", 6);
cmd.args[4] = delivery_system | bandwidth;
+ if (config->spectral_inversion)
+ cmd.args[5] |= 1;
cmd.wlen = 6;
cmd.rlen = 4;
ret = si2168_cmd_execute(client, &cmd);
diff --git a/drivers/media/dvb-frontends/si2168.h b/drivers/media/dvb-frontends/si2168.h
index f48f0fb..978854f 100644
--- a/drivers/media/dvb-frontends/si2168.h
+++ b/drivers/media/dvb-frontends/si2168.h
@@ -46,6 +46,9 @@ struct si2168_config {
/* TS clock gapped */
bool ts_clock_gapped;
+
+ /* Inverted spectrum */
+ bool spectral_inversion;
};
#endif
--
2.7.4
