media: ddbridge: stv0910 single demod mode module option

Adds a stv0910_single modparm which, when set, configures the stv0910 to
run in single demodulator mode, currently intended for high bit rate
testing.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <r.scobie@clear.net.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/pci/ddbridge/ddbridge-core.c

@@ -53,6 +53,10 @@ static int xo2_speed = 2;
 module_param(xo2_speed, int, 0444);
 MODULE_PARM_DESC(xo2_speed, "default transfer speed for xo2 based duoflex, 0=55,1=75,2=90,3=104 MBit/s, default=2, use attribute to change for individual cards");
 
+static int stv0910_single;
+module_param(stv0910_single, int, 0444);
+MODULE_PARM_DESC(stv0910_single, "use stv0910 cards as single demods");
+
 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
 
 /* MSI had problems with lost interrupts, fixed but needs testing */
@@ -942,6 +946,9 @@ static int demod_attach_stv0910(struct ddb_input *input, int type)
 	struct stv0910_cfg cfg = stv0910_p;
 	struct lnbh25_config lnbcfg = lnbh25_cfg;
 
+	if (stv0910_single)
+		cfg.single = 1;
+
 	if (type)
 		cfg.parallel = 2;
 	input->fe = dvb_attach(stv0910_attach, i2c, &cfg, (input->nr & 1));