Commit d4c779bc authored by Brad Love's avatar Brad Love Committed by Mauro Carvalho Chehab
Browse files

media: si2168: Add spectrum inversion property 



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: default avatarBrad Love <brad@nextdimension.cc>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent a398e043

drivers/media/dvb-frontends/si2168.c

+3 −0
Original line number Diff line number Diff line
@@ -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 (dev->spectral_inversion)

		cmd.args[5] |= 1;

	cmd.wlen = 6;

	cmd.rlen = 4;

	ret = si2168_cmd_execute(client, &cmd);
@@ -798,6 +800,7 @@ static int si2168_probe(struct i2c_client *client, 
	dev->ts_mode = config->ts_mode;

	dev->ts_clock_inv = config->ts_clock_inv;

	dev->ts_clock_gapped = config->ts_clock_gapped;

	dev->spectral_inversion = config->spectral_inversion;



	dev_info(&client->dev, "Silicon Labs Si2168-%c%d%d successfully identified\n",

		 dev->version >> 24 & 0xff, dev->version >> 16 & 0xff,

drivers/media/dvb-frontends/si2168.h

+3 −0
Original line number Diff line number Diff line
@@ -46,6 +46,9 @@ struct si2168_config { 


	/* TS clock gapped */

	bool ts_clock_gapped;



	/* Inverted spectrum */

	bool spectral_inversion;

};



#endif

drivers/media/dvb-frontends/si2168_priv.h

+1 −0
Original line number Diff line number Diff line
@@ -48,6 +48,7 @@ struct si2168_dev { 
	u8 ts_mode;

	bool ts_clock_inv;

	bool ts_clock_gapped;

	bool spectral_inversion;

};



/* firmware command struct */