[media] drxk: Make the QAM demodulator command parameters configurable

Currently there are two different implementations (in the firmware) for
the QAM demodulator command: one takes 4 and the other takes 2
parameters. The driver shows an error in dmesg When using the
4-parameter command with firmware that implements the 2-parameter
command. Unfortunately this happens every time when chaning the
frequency (on DVB-C).

This patch simply makes configurable, how many command parameters will
be used. All existing drxk_config instances using the "drxk_a3.mc" were
updated because this firmware is the only loadable firmware where the
QAM demodulator command takes 4 parameters. Some firmwares in the ROM
might also use it. The drxk instances in the em28xx-dvb driver were also
updated to silence the warnings.

If no qam_demod_parameter_count is given in the drxk_config struct, then
the correct number of parameters will be auto-detected.

[mchehab@redhat.com: Fix a small CodingStyle issue at one comment]
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/media/dvb/ddbridge/ddbridge-core.c b/drivers/media/dvb/ddbridge/ddbridge-core.c
index 131b938..ebf3f05 100644
--- a/drivers/media/dvb/ddbridge/ddbridge-core.c
+++ b/drivers/media/dvb/ddbridge/ddbridge-core.c
@@ -578,6 +578,7 @@ static int demod_attach_drxk(struct ddb_input *input)
 
 	memset(&config, 0, sizeof(config));
 	config.microcode_name = "drxk_a3.mc";
+	config.qam_demod_parameter_count = 4;
 	config.adr = 0x29 + (input->nr & 1);
 
 	fe = input->fe = dvb_attach(drxk_attach, &config, i2c);