linux-toradex.git/drivers/media/dvb-frontends/rtl2832.c, branch v3.16.2

[media] rtl2832: implement delayed I2C gate close

2014-03-05T18:41:18+00:00

Delay possible I2C gate close a little bit in order to see if there
is next message coming to tuner in a sequence.

Also, export private muxed I2C adapter. That is aimed only for SDR
extension module as SDR belongs to same RTL2832 physical I2C bus (it
is physically property of RTL2832, whilst it is own kernel module).

Signed-off-by: Antti Palosaari 
Signed-off-by: Mauro Carvalho Chehab

[media] rtl2832: Fix deadlock on i2c mux select function

2014-03-05T18:39:34+00:00

Signed-off-by: Luis Alves 
Signed-off-by: Antti Palosaari 
Signed-off-by: Mauro Carvalho Chehab

[media] rtl2832: add muxed I2C adapter for demod itself

2014-03-05T18:39:17+00:00

There was a deadlock between master I2C adapter and muxed I2C
adapter. Implement two I2C muxed I2C adapters and leave master
alone, just only for offering I2C adapter for these mux adapters.

Reported-by: Luis Alves 
Reported-by: Benjamin Larsson 
Signed-off-by: Antti Palosaari 
Signed-off-by: Mauro Carvalho Chehab

[media] rtl2832: provide muxed I2C adapter

2014-03-05T18:38:28+00:00

RTL2832 provides gated / repeater I2C adapter for tuner.
Implement it as a muxed I2C adapter.

Signed-off-by: Antti Palosaari 
Signed-off-by: Mauro Carvalho Chehab

[media] rtl2832: style changes and minor cleanup

2014-03-05T18:38:01+00:00

Most of those were reported by checkpatch.pl...

debug module parameter is not used anywhere so remove it.

Signed-off-by: Antti Palosaari 
Signed-off-by: Mauro Carvalho Chehab

[media] rtl2832: remove unused if_dvbt config parameter

2014-03-05T18:36:59+00:00

All used tuners has get_if_frequency() callback and that parameter
is not needed and will not needed as all upcoming tuner drivers
should implement get_if_frequency().

Signed-off-by: Antti Palosaari 
Signed-off-by: Mauro Carvalho Chehab

[media] dvb-frontends: Don't use dynamic static allocation

2013-11-08T11:45:39+00:00

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/dvb-frontends/af9013.c:77:1: warning: 'af9013_wr_regs_i2c' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/af9033.c:188:1: warning: 'af9033_wr_reg_val_tab' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/af9033.c:68:1: warning: 'af9033_wr_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/bcm3510.c:230:1: warning: 'bcm3510_do_hab_cmd' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/cxd2820r_core.c:84:1: warning: 'cxd2820r_rd_regs_i2c.isra.1' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/rtl2830.c:56:1: warning: 'rtl2830_wr' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/rtl2832.c:187:1: warning: 'rtl2832_wr' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/tda10071.c:52:1: warning: 'tda10071_wr_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/tda10071.c:84:1: warning: 'tda10071_rd_regs' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer. Considering that I2C
transfers are generally limited, and that devices used on USB has a
max data length of 64 bytes for	the control URBs.
So, it seem safe to use 64 bytes as the hard limit for all those devices.
 On most cases, the limit is a way lower than that, but	this limit
is small enough to not affect the Kernel stack, and it is a no brain
limit, as using smaller ones would require to either carefully each
driver or to take a look on each datasheet.

Signed-off-by: Mauro Carvalho Chehab 
Reviewed-by: Hans Verkuil 
Reviewed-by: Antti Palosaari 
Signed-off-by: Mauro Carvalho Chehab

[media] rtl2832: add new tuner R828D

2013-10-31T08:09:23+00:00

Use R820T config for R828D too as those are about same tuner.

Signed-off-by: Antti Palosaari 
Signed-off-by: Mauro Carvalho Chehab

[media] rtl2832: Fix IF calculus

2013-04-17T00:39:28+00:00

Spectrum is inverted. So, we need to invert it when calculating the
value for the IF register

Signed-off-by: Mauro Carvalho Chehab 
Tested-by: Antti Palosaari

[media] rtl2832: properly set en_bbin for r820t

2013-04-17T00:27:19+00:00

DVBT_EN_BBIN should be set on both places where IF is set. So,
move it to a function and call it where needed.

Signed-off-by: Mauro Carvalho Chehab 
Tested-by: Antti Palosaari